Topics

SM 1990 drive unit seals


Helen and Kostas Yuvanidi
 

We are having trouble with the seal between the transmission and the rest of the drive unit after having it serviced. The oil leaked out between the transmission box and the fibreglass part of the drive unit. The machine shop had used a paper gasket and some sort of red sealant. We are on anchor so are trying to do it ourselves.
We took it apart and resealed it , it leaked again after about 4 hrs motoring. We had used a high Temperature RTV gasket maker but no paper gasket because we thought that that was the way it was originally.
We have the plans from Amel, but it is not clear if there should be a paper gasket.
Should we try to find card to cut a gasket or try again with the RTV gasket maker? The fibreglass part is not in a very good condition.

Helen and Kostas on Meditation SM 29 of 1990


 

The drawing shows 2 each "Joint Toriques" which is an O-Ring. Follow this link.


CW Bill Rouse Amel Owners Yacht School
Address: 720 Winnie, Galveston Island, Texas 77550 
View My Training Calendar


On Fri, Jul 17, 2020 at 8:31 AM Helen and Kostas Yuvanidi <helenmi57@...> wrote:

We are having trouble with the seal between the transmission and the rest of the drive unit after having it serviced. The oil leaked out between the transmission box and the fibreglass part of the drive unit. The machine shop had used a paper gasket and some sort of red sealant. We are on anchor so are trying to do it ourselves.
We took it apart and resealed it , it leaked again after about 4 hrs motoring. We had used a high Temperature RTV gasket maker but no paper gasket because we thought that that was the way it was originally.
We have the plans from Amel, but it is not clear if there should be a paper gasket.
Should we try to find card to cut a gasket or try again with the RTV gasket maker? The fibreglass part is not in a very good condition.

Helen and Kostas on Meditation SM 29 of 1990


Helen and Kostas Yuvanidi
 

Hi Bill,

Thanks for the prompt reply!
Unfortunately ours is different and doesn’t have the O rings , or any likely place to put one. I’m sending you photos to see what ours is like. On looking at the plans Amel sent us our set up is not exactly those either. We have bolts to fix it in place which are inserted from under the fibreglass part, shown in one of the photos. 
It might be possible to put an O-Ring around the aluminum part which inserts slightly into the fibreglass, only there is nothing there to hold it in place, any ideas will be very much appreciated!!
Thanks again 
Helen and Kostas on Meditation SM 29 of 1990



On 17 Jul 2020, at 4:54 PM, CW Bill Rouse <brouse@...> wrote:


The drawing shows 2 each "Joint Toriques" which is an O-Ring. Follow this link.


CW Bill Rouse Amel Owners Yacht School
Address: 720 Winnie, Galveston Island, Texas 77550 
View My Training Calendar


On Fri, Jul 17, 2020 at 8:31 AM Helen and Kostas Yuvanidi <helenmi57@...> wrote:

We are having trouble with the seal between the transmission and the rest of the drive unit after having it serviced. The oil leaked out between the transmission box and the fibreglass part of the drive unit. The machine shop had used a paper gasket and some sort of red sealant. We are on anchor so are trying to do it ourselves.
We took it apart and resealed it , it leaked again after about 4 hrs motoring. We had used a high Temperature RTV gasket maker but no paper gasket because we thought that that was the way it was originally.
We have the plans from Amel, but it is not clear if there should be a paper gasket.
Should we try to find card to cut a gasket or try again with the RTV gasket maker? The fibreglass part is not in a very good condition.

Helen and Kostas on Meditation SM 29 of 1990


Helen and Kostas Yuvanidi
 

I’m sending the plans Maud sent me. It’s not exactly like any of them.
We’ve measured the difference between the aluminum and the fibreglass and it’s 3mm, but again there is nothing to hold an O-ring in place.

Many thanks,
Helen and Kostas Meditation SM 29 in 1990


On 17 Jul 2020, at 6:04 PM, Helen and Kostas Yuvanidi via groups.io <helenmi57@...> wrote:

Hi Bill,

Thanks for the prompt reply!
Unfortunately ours is different and doesn’t have the O rings , or any likely place to put one. I’m sending you photos to see what ours is like. On looking at the plans Amel sent us our set up is not exactly those either. We have bolts to fix it in place which are inserted from under the fibreglass part, shown in one of the photos. 
It might be possible to put an O-Ring around the aluminum part which inserts slightly into the fibreglass, only there is nothing there to hold it in place, any ideas will be very much appreciated!!
Thanks again 
Helen and Kostas on Meditation SM 29 of 1990

<image0.jpeg>
<image1.jpeg>


On 17 Jul 2020, at 4:54 PM, CW Bill Rouse <brouse@...> wrote:


The drawing shows 2 each "Joint Toriques" which is an O-Ring. Follow this link.


CW Bill Rouse Amel Owners Yacht School
Address: 720 Winnie, Galveston Island, Texas 77550 
View My Training Calendar


On Fri, Jul 17, 2020 at 8:31 AM Helen and Kostas Yuvanidi <helenmi57@...> wrote:

We are having trouble with the seal between the transmission and the rest of the drive unit after having it serviced. The oil leaked out between the transmission box and the fibreglass part of the drive unit. The machine shop had used a paper gasket and some sort of red sealant. We are on anchor so are trying to do it ourselves.
We took it apart and resealed it , it leaked again after about 4 hrs motoring. We had used a high Temperature RTV gasket maker but no paper gasket because we thought that that was the way it was originally.
We have the plans from Amel, but it is not clear if there should be a paper gasket.
Should we try to find card to cut a gasket or try again with the RTV gasket maker? The fibreglass part is not in a very good condition.

Helen and Kostas on Meditation SM 29 of 1990


 

I did not understand your original email.

Apparently, you have the original aluminum C-Drive. I have never seen one of these. Someone told me that Amel replaced these. I do not know if that replacement story is accurate or not.

I do not believe that I can help you.

Bill
CW Bill Rouse Amel Owners Yacht School
Address: 720 Winnie, Galveston Island, Texas 77550 
View My Training Calendar


On Fri, Jul 17, 2020 at 10:11 AM Helen and Kostas Yuvanidi <helenmi57@...> wrote:
I’m sending the plans Maud sent me. It’s not exactly like any of them.
We’ve measured the difference between the aluminum and the fibreglass and it’s 3mm, but again there is nothing to hold an O-ring in place.

Many thanks,
Helen and Kostas Meditation SM 29 in 1990


On 17 Jul 2020, at 6:04 PM, Helen and Kostas Yuvanidi via groups.io <helenmi57=gmail.com@groups.io> wrote:

Hi Bill,

Thanks for the prompt reply!
Unfortunately ours is different and doesn’t have the O rings , or any likely place to put one. I’m sending you photos to see what ours is like. On looking at the plans Amel sent us our set up is not exactly those either. We have bolts to fix it in place which are inserted from under the fibreglass part, shown in one of the photos. 
It might be possible to put an O-Ring around the aluminum part which inserts slightly into the fibreglass, only there is nothing there to hold it in place, any ideas will be very much appreciated!!
Thanks again 
Helen and Kostas on Meditation SM 29 of 1990

<image0.jpeg>
<image1.jpeg>


On 17 Jul 2020, at 4:54 PM, CW Bill Rouse <brouse@...> wrote:


The drawing shows 2 each "Joint Toriques" which is an O-Ring. Follow this link.


CW Bill Rouse Amel Owners Yacht School
Address: 720 Winnie, Galveston Island, Texas 77550 
View My Training Calendar


On Fri, Jul 17, 2020 at 8:31 AM Helen and Kostas Yuvanidi <helenmi57@...> wrote:

We are having trouble with the seal between the transmission and the rest of the drive unit after having it serviced. The oil leaked out between the transmission box and the fibreglass part of the drive unit. The machine shop had used a paper gasket and some sort of red sealant. We are on anchor so are trying to do it ourselves.
We took it apart and resealed it , it leaked again after about 4 hrs motoring. We had used a high Temperature RTV gasket maker but no paper gasket because we thought that that was the way it was originally.
We have the plans from Amel, but it is not clear if there should be a paper gasket.
Should we try to find card to cut a gasket or try again with the RTV gasket maker? The fibreglass part is not in a very good condition.

Helen and Kostas on Meditation SM 29 of 1990


 

You should not use on O-Ring unless there is a groove for the O-Ring.

My only idea is to clean the joint completely and use something like this product to reseal the 2 components: https://www.permatex.com/products/gasketing/gasket-makers/permatex-high-temp-red-rtv-silicone-gasket/?locale=en_us

Bill
CW Bill Rouse Amel Owners Yacht School
Address: 720 Winnie, Galveston Island, Texas 77550 
View My Training Calendar


On Fri, Jul 17, 2020 at 10:04 AM Helen and Kostas Yuvanidi <helenmi57@...> wrote:
Hi Bill,

Thanks for the prompt reply!
Unfortunately ours is different and doesn’t have the O rings , or any likely place to put one. I’m sending you photos to see what ours is like. On looking at the plans Amel sent us our set up is not exactly those either. We have bolts to fix it in place which are inserted from under the fibreglass part, shown in one of the photos. 
It might be possible to put an O-Ring around the aluminum part which inserts slightly into the fibreglass, only there is nothing there to hold it in place, any ideas will be very much appreciated!!
Thanks again 
Helen and Kostas on Meditation SM 29 of 1990



On 17 Jul 2020, at 4:54 PM, CW Bill Rouse <brouse@...> wrote:


The drawing shows 2 each "Joint Toriques" which is an O-Ring. Follow this link.


CW Bill Rouse Amel Owners Yacht School
Address: 720 Winnie, Galveston Island, Texas 77550 
View My Training Calendar


On Fri, Jul 17, 2020 at 8:31 AM Helen and Kostas Yuvanidi <helenmi57@...> wrote:

We are having trouble with the seal between the transmission and the rest of the drive unit after having it serviced. The oil leaked out between the transmission box and the fibreglass part of the drive unit. The machine shop had used a paper gasket and some sort of red sealant. We are on anchor so are trying to do it ourselves.
We took it apart and resealed it , it leaked again after about 4 hrs motoring. We had used a high Temperature RTV gasket maker but no paper gasket because we thought that that was the way it was originally.
We have the plans from Amel, but it is not clear if there should be a paper gasket.
Should we try to find card to cut a gasket or try again with the RTV gasket maker? The fibreglass part is not in a very good condition.

Helen and Kostas on Meditation SM 29 of 1990


Helen and Kostas Yuvanidi
 

Thanks Bill,

That’s what we used... we will try to do it more carefully this time. The only difference is that our Permatex was a few years old and so the red RTV silicone gasket maker hi-temp low volatile up to 650F 343C resists oil, water and anti freeze, that we used  is made by ABRO. It needs to sit for 10 mins to form a film whereas the PERMATEX you stick immediately. Don’t know if that is a problem?

Many thanks!



On 17 Jul 2020, at 6:34 PM, CW Bill Rouse <brouse@...> wrote:


You should not use on O-Ring unless there is a groove for the O-Ring.

My only idea is to clean the joint completely and use something like this product to reseal the 2 components: https://www.permatex.com/products/gasketing/gasket-makers/permatex-high-temp-red-rtv-silicone-gasket/?locale=en_us

Bill
CW Bill Rouse Amel Owners Yacht School
Address: 720 Winnie, Galveston Island, Texas 77550 
View My Training Calendar


On Fri, Jul 17, 2020 at 10:04 AM Helen and Kostas Yuvanidi <helenmi57@...> wrote:
Hi Bill,

Thanks for the prompt reply!
Unfortunately ours is different and doesn’t have the O rings , or any likely place to put one. I’m sending you photos to see what ours is like. On looking at the plans Amel sent us our set up is not exactly those either. We have bolts to fix it in place which are inserted from under the fibreglass part, shown in one of the photos. 
It might be possible to put an O-Ring around the aluminum part which inserts slightly into the fibreglass, only there is nothing there to hold it in place, any ideas will be very much appreciated!!
Thanks again 
Helen and Kostas on Meditation SM 29 of 1990

<image0.jpeg>
<image1.jpeg>


On 17 Jul 2020, at 4:54 PM, CW Bill Rouse <brouse@...> wrote:


The drawing shows 2 each "Joint Toriques" which is an O-Ring. Follow this link.


CW Bill Rouse Amel Owners Yacht School
Address: 720 Winnie, Galveston Island, Texas 77550 
View My Training Calendar


On Fri, Jul 17, 2020 at 8:31 AM Helen and Kostas Yuvanidi <helenmi57@...> wrote:

We are having trouble with the seal between the transmission and the rest of the drive unit after having it serviced. The oil leaked out between the transmission box and the fibreglass part of the drive unit. The machine shop had used a paper gasket and some sort of red sealant. We are on anchor so are trying to do it ourselves.
We took it apart and resealed it , it leaked again after about 4 hrs motoring. We had used a high Temperature RTV gasket maker but no paper gasket because we thought that that was the way it was originally.
We have the plans from Amel, but it is not clear if there should be a paper gasket.
Should we try to find card to cut a gasket or try again with the RTV gasket maker? The fibreglass part is not in a very good condition.

Helen and Kostas on Meditation SM 29 of 1990


Craig Briggs
 

Hi guys,

So Permatex has several RTV Gasket Makers in different color tubes for different purposes, like water pumps, transmissions, hi-temp, or sensor-safe. The Green one is for gear oil. The Red only says it "resists" oil. The Green says, " 
 Specially formulated to withstand the harsh gear oil environment found in differentials and transfer cases. Because gear oil has friction modifiers that break down normal RTV and cause leaking, this specialty silicone has been tested to OEM specifications to ensure complete sealing. As a gasket maker, it seeks and seals leak paths that cut gaskets cannot. It can also be used to seal cut gaskets.

That's the one you want. It is Permatex part number 81182. $8.46 on Amazon. Instructions say apply a bead, assemble and tighten only finger tight. After an hour retighten only 1/4 to 1/2 turn. Cures in 24 hours.
I've found the waiting time is really important, lest you end up with the material totally squished out. 

Good luck with it and if it works you can say you've got the first "Green" Amel. 
Cheers, Craig


amelforme
 

That is one of the early aluminum transmissions that were very prone to failure. Amel offered to replace them all at Amel’s expense. Some of these affected boats had been resold and didn’t get the memo. Some people decided that ‘if it ain’t broke don’t fix it’ and didn’t take the replacement. Over the years I was given several different hull numbers that supposedly were the cut off point for the aluminum transmissions. In every case, # 29 was included in the aluminum transmission equipped boats.

 

I hope this is helpful.

 

All the best,

Joel

 

           JOEL F. POTTER ~ CRUISING YACHT SPECIALIST, L.L.C.

                                         The Experienced AMEL Guy

UNSURPASSED AMEL MARKETING EXPERIENCE AND PRODUCT KNOWLEDGE

                                  Office 954-462-5869  Cell 954-812-2485

 

From: main@AmelYachtOwners.groups.io <main@AmelYachtOwners.groups.io> On Behalf Of CW Bill Rouse
Sent: Friday, July 17, 2020 11:31 AM
To: main@AmelYachtOwners.groups.io Notification <main@amelyachtowners.groups.io>
Subject: Re: [AmelYachtOwners] SM 1990 drive unit seals

 

I did not understand your original email.

 

Apparently, you have the original aluminum C-Drive. I have never seen one of these. Someone told me that Amel replaced these. I do not know if that replacement story is accurate or not.

 

I do not believe that I can help you.

 

Bill

CW Bill Rouse Amel Owners Yacht School

Address: 720 Winnie, Galveston Island, Texas 77550 

 

View My Training Calendar

 

 

On Fri, Jul 17, 2020 at 10:11 AM Helen and Kostas Yuvanidi <helenmi57@...> wrote:

I’m sending the plans Maud sent me. It’s not exactly like any of them.

We’ve measured the difference between the aluminum and the fibreglass and it’s 3mm, but again there is nothing to hold an O-ring in place.

 

Many thanks,

Helen and Kostas Meditation SM 29 in 1990



On 17 Jul 2020, at 6:04 PM, Helen and Kostas Yuvanidi via groups.io <helenmi57=gmail.com@groups.io> wrote:

Hi Bill,

 

Thanks for the prompt reply!

Unfortunately ours is different and doesn’t have the O rings , or any likely place to put one. I’m sending you photos to see what ours is like. On looking at the plans Amel sent us our set up is not exactly those either. We have bolts to fix it in place which are inserted from under the fibreglass part, shown in one of the photos. 

It might be possible to put an O-Ring around the aluminum part which inserts slightly into the fibreglass, only there is nothing there to hold it in place, any ideas will be very much appreciated!!

Thanks again 

Helen and Kostas on Meditation SM 29 of 1990

 

<image0.jpeg>

<image1.jpeg>

 



On 17 Jul 2020, at 4:54 PM, CW Bill Rouse <brouse@...> wrote:



The drawing shows 2 each "Joint Toriques" which is an O-Ring. Follow this link.

 

CW Bill Rouse Amel Owners Yacht School

Address: 720 Winnie, Galveston Island, Texas 77550 

 

View My Training Calendar

 

 

On Fri, Jul 17, 2020 at 8:31 AM Helen and Kostas Yuvanidi <helenmi57@...> wrote:

We are having trouble with the seal between the transmission and the rest of the drive unit after having it serviced. The oil leaked out between the transmission box and the fibreglass part of the drive unit. The machine shop had used a paper gasket and some sort of red sealant. We are on anchor so are trying to do it ourselves.
We took it apart and resealed it , it leaked again after about 4 hrs motoring. We had used a high Temperature RTV gasket maker but no paper gasket because we thought that that was the way it was originally.
We have the plans from Amel, but it is not clear if there should be a paper gasket.
Should we try to find card to cut a gasket or try again with the RTV gasket maker? The fibreglass part is not in a very good condition.

Helen and Kostas on Meditation SM 29 of 1990


Helen and Kostas Yuvanidi
 

Hi Joel,

Thanks for that! 
We’ve had Meditation for 20 years now, but I guess the offer was made to the previous owner.
We have serviced the transmission before, this is the first time we have a problem with the seal...we have had loads of other problems with the drive unit though...!!!
Best regards,
Helen and Kostas on Meditation SM 29 in 1990


On 17 Jul 2020, at 8:05 PM, amelforme <jfpottercys@...> wrote:



That is one of the early aluminum transmissions that were very prone to failure. Amel offered to replace them all at Amel’s expense. Some of these affected boats had been resold and didn’t get the memo. Some people decided that ‘if it ain’t broke don’t fix it’ and didn’t take the replacement. Over the years I was given several different hull numbers that supposedly were the cut off point for the aluminum transmissions. In every case, # 29 was included in the aluminum transmission equipped boats.

 

I hope this is helpful.

 

All the best,

Joel

 

           JOEL F. POTTER ~ CRUISING YACHT SPECIALIST, L.L.C.

                                         The Experienced AMEL Guy

UNSURPASSED AMEL MARKETING EXPERIENCE AND PRODUCT KNOWLEDGE

                                  Office 954-462-5869  Cell 954-812-2485

 

From: main@AmelYachtOwners.groups.io <main@AmelYachtOwners.groups.io> On Behalf Of CW Bill Rouse
Sent: Friday, July 17, 2020 11:31 AM
To: main@AmelYachtOwners.groups.io Notification <main@amelyachtowners.groups.io>
Subject: Re: [AmelYachtOwners] SM 1990 drive unit seals

 

I did not understand your original email.

 

Apparently, you have the original aluminum C-Drive. I have never seen one of these. Someone told me that Amel replaced these. I do not know if that replacement story is accurate or not.

 

I do not believe that I can help you.

 

Bill

CW Bill Rouse Amel Owners Yacht School

Address: 720 Winnie, Galveston Island, Texas 77550 

 

View My Training Calendar

 

 

On Fri, Jul 17, 2020 at 10:11 AM Helen and Kostas Yuvanidi <helenmi57@...> wrote:

I’m sending the plans Maud sent me. It’s not exactly like any of them.

We’ve measured the difference between the aluminum and the fibreglass and it’s 3mm, but again there is nothing to hold an O-ring in place.

 

Many thanks,

Helen and Kostas Meditation SM 29 in 1990



On 17 Jul 2020, at 6:04 PM, Helen and Kostas Yuvanidi via groups.io <helenmi57=gmail.com@groups.io> wrote:

Hi Bill,

 

Thanks for the prompt reply!

Unfortunately ours is different and doesn’t have the O rings , or any likely place to put one. I’m sending you photos to see what ours is like. On looking at the plans Amel sent us our set up is not exactly those either. We have bolts to fix it in place which are inserted from under the fibreglass part, shown in one of the photos. 

It might be possible to put an O-Ring around the aluminum part which inserts slightly into the fibreglass, only there is nothing there to hold it in place, any ideas will be very much appreciated!!

Thanks again 

Helen and Kostas on Meditation SM 29 of 1990

 

<image0.jpeg>

<image1.jpeg>

 



On 17 Jul 2020, at 4:54 PM, CW Bill Rouse <brouse@...> wrote:



The drawing shows 2 each "Joint Toriques" which is an O-Ring. Follow this link.

 

CW Bill Rouse Amel Owners Yacht School

Address: 720 Winnie, Galveston Island, Texas 77550 

 

View My Training Calendar

 

 

On Fri, Jul 17, 2020 at 8:31 AM Helen and Kostas Yuvanidi <helenmi57@...> wrote:

We are having trouble with the seal between the transmission and the rest of the drive unit after having it serviced. The oil leaked out between the transmission box and the fibreglass part of the drive unit. The machine shop had used a paper gasket and some sort of red sealant. We are on anchor so are trying to do it ourselves.
We took it apart and resealed it , it leaked again after about 4 hrs motoring. We had used a high Temperature RTV gasket maker but no paper gasket because we thought that that was the way it was originally.
We have the plans from Amel, but it is not clear if there should be a paper gasket.
Should we try to find card to cut a gasket or try again with the RTV gasket maker? The fibreglass part is not in a very good condition.

Helen and Kostas on Meditation SM 29 of 1990


John Clark
 

My friend here in St Thomas has SM #24. He also has the aluminum drive.   Didier in Martinique rebuilt his drive a couple of years ago.  I will forward this to him and see if he has any insight.

Regards,  John

SV Annie SM 37
St Thomas USVI

On Fri, Jul 17, 2020 at 11:31 AM CW Bill Rouse <brouse@...> wrote:
I did not understand your original email.

Apparently, you have the original aluminum C-Drive. I have never seen one of these. Someone told me that Amel replaced these. I do not know if that replacement story is accurate or not.

I do not believe that I can help you.

Bill
CW Bill Rouse Amel Owners Yacht School
Address: 720 Winnie, Galveston Island, Texas 77550 
View My Training Calendar


On Fri, Jul 17, 2020 at 10:11 AM Helen and Kostas Yuvanidi <helenmi57@...> wrote:
I’m sending the plans Maud sent me. It’s not exactly like any of them.
We’ve measured the difference between the aluminum and the fibreglass and it’s 3mm, but again there is nothing to hold an O-ring in place.

Many thanks,
Helen and Kostas Meditation SM 29 in 1990


On 17 Jul 2020, at 6:04 PM, Helen and Kostas Yuvanidi via groups.io <helenmi57=gmail.com@groups.io> wrote:

Hi Bill,

Thanks for the prompt reply!
Unfortunately ours is different and doesn’t have the O rings , or any likely place to put one. I’m sending you photos to see what ours is like. On looking at the plans Amel sent us our set up is not exactly those either. We have bolts to fix it in place which are inserted from under the fibreglass part, shown in one of the photos. 
It might be possible to put an O-Ring around the aluminum part which inserts slightly into the fibreglass, only there is nothing there to hold it in place, any ideas will be very much appreciated!!
Thanks again 
Helen and Kostas on Meditation SM 29 of 1990

<image0.jpeg>
<image1.jpeg>


On 17 Jul 2020, at 4:54 PM, CW Bill Rouse <brouse@...> wrote:


The drawing shows 2 each "Joint Toriques" which is an O-Ring. Follow this link.


CW Bill Rouse Amel Owners Yacht School
Address: 720 Winnie, Galveston Island, Texas 77550 
View My Training Calendar


On Fri, Jul 17, 2020 at 8:31 AM Helen and Kostas Yuvanidi <helenmi57@...> wrote:

We are having trouble with the seal between the transmission and the rest of the drive unit after having it serviced. The oil leaked out between the transmission box and the fibreglass part of the drive unit. The machine shop had used a paper gasket and some sort of red sealant. We are on anchor so are trying to do it ourselves.
We took it apart and resealed it , it leaked again after about 4 hrs motoring. We had used a high Temperature RTV gasket maker but no paper gasket because we thought that that was the way it was originally.
We have the plans from Amel, but it is not clear if there should be a paper gasket.
Should we try to find card to cut a gasket or try again with the RTV gasket maker? The fibreglass part is not in a very good condition.

Helen and Kostas on Meditation SM 29 of 1990


Helen and Kostas Yuvanidi
 

Hi John,
Thanks a lot!!
Best regards,
Helen and Kostas 


On 19 Jul 2020, at 4:00 PM, John Clark <john.biohead@...> wrote:


My friend here in St Thomas has SM #24. He also has the aluminum drive.   Didier in Martinique rebuilt his drive a couple of years ago.  I will forward this to him and see if he has any insight.

Regards,  John

SV Annie SM 37
St Thomas USVI

On Fri, Jul 17, 2020 at 11:31 AM CW Bill Rouse <brouse@...> wrote:
I did not understand your original email.

Apparently, you have the original aluminum C-Drive. I have never seen one of these. Someone told me that Amel replaced these. I do not know if that replacement story is accurate or not.

I do not believe that I can help you.

Bill
CW Bill Rouse Amel Owners Yacht School
Address: 720 Winnie, Galveston Island, Texas 77550 
View My Training Calendar


On Fri, Jul 17, 2020 at 10:11 AM Helen and Kostas Yuvanidi <helenmi57@...> wrote:
I’m sending the plans Maud sent me. It’s not exactly like any of them.
We’ve measured the difference between the aluminum and the fibreglass and it’s 3mm, but again there is nothing to hold an O-ring in place.

Many thanks,
Helen and Kostas Meditation SM 29 in 1990


On 17 Jul 2020, at 6:04 PM, Helen and Kostas Yuvanidi via groups.io <helenmi57=gmail.com@groups.io> wrote:

Hi Bill,

Thanks for the prompt reply!
Unfortunately ours is different and doesn’t have the O rings , or any likely place to put one. I’m sending you photos to see what ours is like. On looking at the plans Amel sent us our set up is not exactly those either. We have bolts to fix it in place which are inserted from under the fibreglass part, shown in one of the photos. 
It might be possible to put an O-Ring around the aluminum part which inserts slightly into the fibreglass, only there is nothing there to hold it in place, any ideas will be very much appreciated!!
Thanks again 
Helen and Kostas on Meditation SM 29 of 1990

<image0.jpeg>
<image1.jpeg>


On 17 Jul 2020, at 4:54 PM, CW Bill Rouse <brouse@...> wrote:


The drawing shows 2 each "Joint Toriques" which is an O-Ring. Follow this link.


CW Bill Rouse Amel Owners Yacht School
Address: 720 Winnie, Galveston Island, Texas 77550 
View My Training Calendar


On Fri, Jul 17, 2020 at 8:31 AM Helen and Kostas Yuvanidi <helenmi57@...> wrote:

We are having trouble with the seal between the transmission and the rest of the drive unit after having it serviced. The oil leaked out between the transmission box and the fibreglass part of the drive unit. The machine shop had used a paper gasket and some sort of red sealant. We are on anchor so are trying to do it ourselves.
We took it apart and resealed it , it leaked again after about 4 hrs motoring. We had used a high Temperature RTV gasket maker but no paper gasket because we thought that that was the way it was originally.
We have the plans from Amel, but it is not clear if there should be a paper gasket.
Should we try to find card to cut a gasket or try again with the RTV gasket maker? The fibreglass part is not in a very good condition.

Helen and Kostas on Meditation SM 29 of 1990


Mitchell Petersen
 

I have the aluminium one which I recently fully rebuilt with all new bearings on both the upper and lower unit which requires cutting through the fibreglass and glassing back to original shape.

There is meant to be a small (approx. 2-3 inches) section of aluminium tubing glassed into the lower unit where the propelled shaft exits the until / where the fibreglass tapers which sounds like is no longer there since your service.

Mitchell 
SN33 1993

On Sat., 18 Jul. 2020, 1:11 am Helen and Kostas Yuvanidi, <helenmi57@...> wrote:
I’m sending the plans Maud sent me. It’s not exactly like any of them.
We’ve measured the difference between the aluminum and the fibreglass and it’s 3mm, but again there is nothing to hold an O-ring in place.

Many thanks,
Helen and Kostas Meditation SM 29 in 1990


On 17 Jul 2020, at 6:04 PM, Helen and Kostas Yuvanidi via groups.io <helenmi57=gmail.com@groups.io> wrote:

Hi Bill,

Thanks for the prompt reply!
Unfortunately ours is different and doesn’t have the O rings , or any likely place to put one. I’m sending you photos to see what ours is like. On looking at the plans Amel sent us our set up is not exactly those either. We have bolts to fix it in place which are inserted from under the fibreglass part, shown in one of the photos. 
It might be possible to put an O-Ring around the aluminum part which inserts slightly into the fibreglass, only there is nothing there to hold it in place, any ideas will be very much appreciated!!
Thanks again 
Helen and Kostas on Meditation SM 29 of 1990

<image0.jpeg>
<image1.jpeg>


On 17 Jul 2020, at 4:54 PM, CW Bill Rouse <brouse@...> wrote:


The drawing shows 2 each "Joint Toriques" which is an O-Ring. Follow this link.


CW Bill Rouse Amel Owners Yacht School
Address: 720 Winnie, Galveston Island, Texas 77550 
View My Training Calendar


On Fri, Jul 17, 2020 at 8:31 AM Helen and Kostas Yuvanidi <helenmi57@...> wrote:

We are having trouble with the seal between the transmission and the rest of the drive unit after having it serviced. The oil leaked out between the transmission box and the fibreglass part of the drive unit. The machine shop had used a paper gasket and some sort of red sealant. We are on anchor so are trying to do it ourselves.
We took it apart and resealed it , it leaked again after about 4 hrs motoring. We had used a high Temperature RTV gasket maker but no paper gasket because we thought that that was the way it was originally.
We have the plans from Amel, but it is not clear if there should be a paper gasket.
Should we try to find card to cut a gasket or try again with the RTV gasket maker? The fibreglass part is not in a very good condition.

Helen and Kostas on Meditation SM 29 of 1990


Helen and Kostas Yuvanidi
 

Hi Mitchell,

Thanks!!
Our fibreglass did not have the aluminium part, at least not since we have the boat, we have taken it apart many times in the 20 years we have her, probably Amel made the change after our hull.
We changed all the bearings and gears in the upper part, but didn’t touch the lower.
Have you changed the viscosity of the oil you use or do you still use the 15W 40?
All the best,
Helen and Kostas on Meditation SM 29 of 1990


On 20 Jul 2020, at 12:03 AM, Mitchell Petersen <Mitchell.j.petersen@...> wrote:


I have the aluminium one which I recently fully rebuilt with all new bearings on both the upper and lower unit which requires cutting through the fibreglass and glassing back to original shape.

There is meant to be a small (approx. 2-3 inches) section of aluminium tubing glassed into the lower unit where the propelled shaft exits the until / where the fibreglass tapers which sounds like is no longer there since your service.

Mitchell 
SN33 1993

On Sat., 18 Jul. 2020, 1:11 am Helen and Kostas Yuvanidi, <helenmi57@...> wrote:
I’m sending the plans Maud sent me. It’s not exactly like any of them.
We’ve measured the difference between the aluminum and the fibreglass and it’s 3mm, but again there is nothing to hold an O-ring in place.

Many thanks,
Helen and Kostas Meditation SM 29 in 1990


On 17 Jul 2020, at 6:04 PM, Helen and Kostas Yuvanidi via groups.io <helenmi57=gmail.com@groups.io> wrote:

Hi Bill,

Thanks for the prompt reply!
Unfortunately ours is different and doesn’t have the O rings , or any likely place to put one. I’m sending you photos to see what ours is like. On looking at the plans Amel sent us our set up is not exactly those either. We have bolts to fix it in place which are inserted from under the fibreglass part, shown in one of the photos. 
It might be possible to put an O-Ring around the aluminum part which inserts slightly into the fibreglass, only there is nothing there to hold it in place, any ideas will be very much appreciated!!
Thanks again 
Helen and Kostas on Meditation SM 29 of 1990

<image0.jpeg>
<image1.jpeg>


On 17 Jul 2020, at 4:54 PM, CW Bill Rouse <brouse@...> wrote:


The drawing shows 2 each "Joint Toriques" which is an O-Ring. Follow this link.


CW Bill Rouse Amel Owners Yacht School
Address: 720 Winnie, Galveston Island, Texas 77550 
View My Training Calendar


On Fri, Jul 17, 2020 at 8:31 AM Helen and Kostas Yuvanidi <helenmi57@...> wrote:

We are having trouble with the seal between the transmission and the rest of the drive unit after having it serviced. The oil leaked out between the transmission box and the fibreglass part of the drive unit. The machine shop had used a paper gasket and some sort of red sealant. We are on anchor so are trying to do it ourselves.
We took it apart and resealed it , it leaked again after about 4 hrs motoring. We had used a high Temperature RTV gasket maker but no paper gasket because we thought that that was the way it was originally.
We have the plans from Amel, but it is not clear if there should be a paper gasket.
Should we try to find card to cut a gasket or try again with the RTV gasket maker? The fibreglass part is not in a very good condition.

Helen and Kostas on Meditation SM 29 of 1990


Mitchell Petersen
 

Hi Helen,

I miss read what you were doing. I thought you were referring to the lower unit.

As far as your oil leak goes. There is a 85x110x12mm oil seal with stainless steel spring at the top of the lower unit where the trumpet looking fibreglass thing marries with the lower unit. I believe this oil seal is designed to retain the oil, should this leak as a backup you have the silicone gasket you are using where the upper unit is bolted to the fibreglass trumpet looking thing. I would guess this oil seal has been dislodged or damaged when the upper unit was repaired/ reinstalled.

The lower unit needs to be removed to replace this seal. This is not a difficult task once you have the upper unit off but the boat obviously has to be out of the water.

For economy I just replaced the oil with engine oil as originally recommend by Amel. When examined all gears top and bottom had very little where so I believe engine oil is sufficient to use in this light application. It is my opinion damage caused to these units is most likely often from miss aligned engines rather then anything to do with oil grade.


Let me know if it is unclear where the oil seal is located and I will mark it up on the plan.

Mitchell


On Mon., 20 Jul. 2020, 5:17 pm Helen and Kostas Yuvanidi, <helenmi57@...> wrote:
Hi Mitchell,

Thanks!!
Our fibreglass did not have the aluminium part, at least not since we have the boat, we have taken it apart many times in the 20 years we have her, probably Amel made the change after our hull.
We changed all the bearings and gears in the upper part, but didn’t touch the lower.
Have you changed the viscosity of the oil you use or do you still use the 15W 40?
All the best,
Helen and Kostas on Meditation SM 29 of 1990


On 20 Jul 2020, at 12:03 AM, Mitchell Petersen <Mitchell.j.petersen@...> wrote:


I have the aluminium one which I recently fully rebuilt with all new bearings on both the upper and lower unit which requires cutting through the fibreglass and glassing back to original shape.

There is meant to be a small (approx. 2-3 inches) section of aluminium tubing glassed into the lower unit where the propelled shaft exits the until / where the fibreglass tapers which sounds like is no longer there since your service.

Mitchell 
SN33 1993

On Sat., 18 Jul. 2020, 1:11 am Helen and Kostas Yuvanidi, <helenmi57@...> wrote:
I’m sending the plans Maud sent me. It’s not exactly like any of them.
We’ve measured the difference between the aluminum and the fibreglass and it’s 3mm, but again there is nothing to hold an O-ring in place.

Many thanks,
Helen and Kostas Meditation SM 29 in 1990


On 17 Jul 2020, at 6:04 PM, Helen and Kostas Yuvanidi via groups.io <helenmi57=gmail.com@groups.io> wrote:

Hi Bill,

Thanks for the prompt reply!
Unfortunately ours is different and doesn’t have the O rings , or any likely place to put one. I’m sending you photos to see what ours is like. On looking at the plans Amel sent us our set up is not exactly those either. We have bolts to fix it in place which are inserted from under the fibreglass part, shown in one of the photos. 
It might be possible to put an O-Ring around the aluminum part which inserts slightly into the fibreglass, only there is nothing there to hold it in place, any ideas will be very much appreciated!!
Thanks again 
Helen and Kostas on Meditation SM 29 of 1990

<image0.jpeg>
<image1.jpeg>


On 17 Jul 2020, at 4:54 PM, CW Bill Rouse <brouse@...> wrote:


The drawing shows 2 each "Joint Toriques" which is an O-Ring. Follow this link.


CW Bill Rouse Amel Owners Yacht School
Address: 720 Winnie, Galveston Island, Texas 77550 
View My Training Calendar


On Fri, Jul 17, 2020 at 8:31 AM Helen and Kostas Yuvanidi <helenmi57@...> wrote:

We are having trouble with the seal between the transmission and the rest of the drive unit after having it serviced. The oil leaked out between the transmission box and the fibreglass part of the drive unit. The machine shop had used a paper gasket and some sort of red sealant. We are on anchor so are trying to do it ourselves.
We took it apart and resealed it , it leaked again after about 4 hrs motoring. We had used a high Temperature RTV gasket maker but no paper gasket because we thought that that was the way it was originally.
We have the plans from Amel, but it is not clear if there should be a paper gasket.
Should we try to find card to cut a gasket or try again with the RTV gasket maker? The fibreglass part is not in a very good condition.

Helen and Kostas on Meditation SM 29 of 1990


Helen and Kostas Yuvanidi
 

Hi Mitchell,

Thanks!!
We never had the oil seal...we have taken it apart many times in the 20 years we have her...that is unless it was removed before we bought her....:/
It would be a great help though if you could point it out for us on the plans.
We always managed to make the seal with just the gasket maker.... the fibreglass trumpet is not in a good condition anymore, perhaps that’s the problem!
Did you make any repairs to that?

Best regards,
Helen and Kostas SM 29 of 1990

Sent from my 

On 22 Jul 2020, at 9:13 AM, Mitchell Petersen <Mitchell.j.petersen@...> wrote:


Hi Helen,

I miss read what you were doing. I thought you were referring to the lower unit.

As far as your oil leak goes. There is a 85x110x12mm oil seal with stainless steel spring at the top of the lower unit where the trumpet looking fibreglass thing marries with the lower unit. I believe this oil seal is designed to retain the oil, should this leak as a backup you have the silicone gasket you are using where the upper unit is bolted to the fibreglass trumpet looking thing. I would guess this oil seal has been dislodged or damaged when the upper unit was repaired/ reinstalled.

The lower unit needs to be removed to replace this seal. This is not a difficult task once you have the upper unit off but the boat obviously has to be out of the water.

For economy I just replaced the oil with engine oil as originally recommend by Amel. When examined all gears top and bottom had very little where so I believe engine oil is sufficient to use in this light application. It is my opinion damage caused to these units is most likely often from miss aligned engines rather then anything to do with oil grade.


Let me know if it is unclear where the oil seal is located and I will mark it up on the plan.

Mitchell


On Mon., 20 Jul. 2020, 5:17 pm Helen and Kostas Yuvanidi, <helenmi57@...> wrote:
Hi Mitchell,

Thanks!!
Our fibreglass did not have the aluminium part, at least not since we have the boat, we have taken it apart many times in the 20 years we have her, probably Amel made the change after our hull.
We changed all the bearings and gears in the upper part, but didn’t touch the lower.
Have you changed the viscosity of the oil you use or do you still use the 15W 40?
All the best,
Helen and Kostas on Meditation SM 29 of 1990


On 20 Jul 2020, at 12:03 AM, Mitchell Petersen <Mitchell.j.petersen@...> wrote:


I have the aluminium one which I recently fully rebuilt with all new bearings on both the upper and lower unit which requires cutting through the fibreglass and glassing back to original shape.

There is meant to be a small (approx. 2-3 inches) section of aluminium tubing glassed into the lower unit where the propelled shaft exits the until / where the fibreglass tapers which sounds like is no longer there since your service.

Mitchell 
SN33 1993

On Sat., 18 Jul. 2020, 1:11 am Helen and Kostas Yuvanidi, <helenmi57@...> wrote:
I’m sending the plans Maud sent me. It’s not exactly like any of them.
We’ve measured the difference between the aluminum and the fibreglass and it’s 3mm, but again there is nothing to hold an O-ring in place.

Many thanks,
Helen and Kostas Meditation SM 29 in 1990


On 17 Jul 2020, at 6:04 PM, Helen and Kostas Yuvanidi via groups.io <helenmi57=gmail.com@groups.io> wrote:

Hi Bill,

Thanks for the prompt reply!
Unfortunately ours is different and doesn’t have the O rings , or any likely place to put one. I’m sending you photos to see what ours is like. On looking at the plans Amel sent us our set up is not exactly those either. We have bolts to fix it in place which are inserted from under the fibreglass part, shown in one of the photos. 
It might be possible to put an O-Ring around the aluminum part which inserts slightly into the fibreglass, only there is nothing there to hold it in place, any ideas will be very much appreciated!!
Thanks again 
Helen and Kostas on Meditation SM 29 of 1990

<image0.jpeg>
<image1.jpeg>


On 17 Jul 2020, at 4:54 PM, CW Bill Rouse <brouse@...> wrote:


The drawing shows 2 each "Joint Toriques" which is an O-Ring. Follow this link.


CW Bill Rouse Amel Owners Yacht School
Address: 720 Winnie, Galveston Island, Texas 77550 
View My Training Calendar


On Fri, Jul 17, 2020 at 8:31 AM Helen and Kostas Yuvanidi <helenmi57@...> wrote:

We are having trouble with the seal between the transmission and the rest of the drive unit after having it serviced. The oil leaked out between the transmission box and the fibreglass part of the drive unit. The machine shop had used a paper gasket and some sort of red sealant. We are on anchor so are trying to do it ourselves.
We took it apart and resealed it , it leaked again after about 4 hrs motoring. We had used a high Temperature RTV gasket maker but no paper gasket because we thought that that was the way it was originally.
We have the plans from Amel, but it is not clear if there should be a paper gasket.
Should we try to find card to cut a gasket or try again with the RTV gasket maker? The fibreglass part is not in a very good condition.

Helen and Kostas on Meditation SM 29 of 1990