Date   

Hi Derick

sailormon <kimberlite@...>
 

Hi Derick,

Are you in Sint Maarten now?

I expect to be there Thursday afternoon.

We are at Simpson Bay Yacht Club.

Fair Winds

Eric

Kimberlite Amel Super Maramu #376

 

 

From: amelyachtowners@... [mailto:amelyachtowners@...]
Sent: Monday, June 13, 2016 12:13 PM
To: amelyachtowners@...
Subject: [Amel Yacht Owners] Re: Mizzen Roller Reefing

 

 

I took the frozen shaft to FKG in Sint Maarten, and they were able to remove the very tight Allen wrench bolt and free up the shaft rotation.  Apparently there was some corrosion that had built up in the connecting shaft.  Best advice, crank you mizzen back and forth every once in a while to prevent corrosion buildup!

 

I added some lithium grease to the bevel gears before reassembly, and used blue locktite on the aluminum threads joining the shaft to the main gear housing.  After fitting the whole assembly back into the mizzen, I put the foil back on the main gear housing, and then put mizzen sail back on the foil.  Everything now works smoothly as expected.

 

I posted a few more photos in the SM Mizzen Gearbox album to show the greasing of the bevel gear and the final assembly before reinstallation on the mizzen mast.

 

Derick

SM2K#400 Brava


Re: Mizzen Roller Reefing

Derick Gates SM2K #400 Brava
 

I took the frozen shaft to FKG in Sint Maarten, and they were able to remove the very tight Allen wrench bolt and free up the shaft rotation.  Apparently there was some corrosion that had built up in the connecting shaft.  Best advice, crank you mizzen back and forth every once in a while to prevent corrosion buildup!

I added some lithium grease to the bevel gears before reassembly, and used blue locktite on the aluminum threads joining the shaft to the main gear housing.  After fitting the whole assembly back into the mizzen, I put the foil back on the main gear housing, and then put mizzen sail back on the foil.  Everything now works smoothly as expected.

I posted a few more photos in the SM Mizzen Gearbox album to show the greasing of the bevel gear and the final assembly before reinstallation on the mizzen mast.

Derick
SM2K#400 Brava


Re: bow thruster service. Problem

Craig Briggs
 

Yes, Enio, that's how you would use it.
Good luck,
Craig


Re: [Amel Yacht Owners] Re: bow thruster service. Problem

Bill & Judy Rouse <yahoogroups@...>
 

The Amel Bow Thruster shaft tube removal tool is placed around the black shaft tube  just under the motor (engine). It is clamped securely to the shaft tube. Then you turn the bolts which will press against the motor (engine). This will cause the motor (engine) and the shaft tube to separate.

Be prepared for the separation or the bow thruster will fall to the ground.

This rust which is holding the black shaft tube to the electric motor is caused by saltwater leaking past the seals and possibly by leaving the bow thruster down in rough water. Other causes are an overloaded boat with too much weight in the bow. Also forgetting to use the safety pin when the bow thruster is raised.

Be sure to clean the bottom of the motor where the shaft tube meets and visually inspect the bearing on the shaft of the motor. That bearing may need replacing. If it does, be sure to hire a highly qualified electric motor repairman. That motor is no longer available and you do not want to damage it or ruin it. When reassembling use plenty of waterproof grease at the junction of the shaft tube and the motor. I recommend service during every haulout...about every 2 years.

Bill Rouse
BeBe Amel 53 #387
Sent from my tablet
+1832-380-4970 USA Voice Mail

On Jun 13, 2016 2:45 AM, "rossienio@... [amelyachtowners]" <amelyachtowners@...> wrote:
 

Good morning, I did what told me Craig (chain wrench used with extension, taping with hammer), but the thruster black shaft does NOT want to move. I think I'll try the Amel tool. Could someone explain to me where you place the tool and how to use it? It should be put around the shaft and pushed down by turning the screws which press under  of the engine? Thanks to anyone who can help me. 


Re: [Amel Yacht Owners] Re: Amel 54 how to chenge bow thruster oil

ya_fohi
 

Indeed I did miss Olivier's replay, apologies. It seems to answer the question. My hull number is 98 and it does drain from the bottom.
Cheers,
Paul


Re: bow thruster service. Problem

rossienio@...
 

Good morning, I did what told me Craig (chain wrench used with extension, taping with hammer), but the thruster black shaft does NOT want to move. I think I'll try the Amel tool. Could someone explain to me where you place the tool and how to use it? It should be put around the shaft and pushed down by turning the screws which press under  of the engine? Thanks to anyone who can help me. 


Re: [Amel Yacht Owners] Re: Amel 54 how to chenge bow thruster oil

Bill & Judy Rouse <yahoogroups@...>
 

Paul,

Apparently you did not see Olivier's reply and question to you in this thread. He answered your questions and asked you a question. There is no person in this Group that knows more about this subject than Olivier. I copied and pasted his posting below:

 <>>>>
Hello Paul and everyone who wants to know more about the AMEL 54,

The bow-thruster of the AMEL 54 is an AMEL design built on a SLEIPNER SIDE POWER basis. AMEL makes it retractable. It has two props with 4 and then 5 (later models) blades each, more protected than on a Santorin/SM...

Paul, depending on your hull number, there is a drain plug at the bottom of the bow-thruster gear -box. The oil drains very slowly and you can fill it from the top oil container (very slow too, warm up the oil in the sun before you put it in the container).

The last AMEL 54 have a bow-thruster with a non-drainable gear-box. The unit is said to be "lubricated for life" by Sleipner. However, if you remove the lip-seals at the prop-shafts, the oil will drain, and you will need to put new oil from the top of the drive shaft tube (just like on a Santorin or SM).

Paul, can you tell your hull number?

Cheers.

Olivier
<<<<<<>>>>>

Bill Rouse
BeBe Amel 53 #387
Sent from my tablet
+1832-380-4970 USA Voice Mail

On Jun 12, 2016 8:32 AM, "sharongbrown@... [amelyachtowners]" <amelyachtowners@...> wrote:
 

Thanks for the advice Craig. I wonder if anyone on this forum has actually changed the oil before by filling from the top?
Paul


Re: Amel 54 how to chenge bow thruster oil

ya_fohi
 

Thanks for the advice Craig. I wonder if anyone on this forum has actually changed the oil before by filling from the top?
Paul


Re: Amel 54 how to chenge bow thruster oil

Craig Briggs
 

Paul,
It sounds like filling from the top would work although the yard guys may have a point about filling from the bottom drain hole like an outboard lower unit to avoid air pockets. Any chandlery will have a very inexpensive manual pump they sell with the gear oil, if that would fit.
Craig SN#68 Sangaris 


Re: [Amel Yacht Owners] Re: Mizzen Roller Reefing

VLADIMIR SONSEV
 

Thanks a lot!!

On Jun 10, 2016 10:58 PM, "derickgates@... [amelyachtowners]" <amelyachtowners@...> wrote:
 

Vladimir,


Done!

Derick


Re: [Amel Yacht Owners] Re: Amel 54 how to chenge bow thruster oil

Germain Jean-Pierre <jgermain@...>
 

Paul,

Instead of draining it out, consider sucking it out with a Pella pump… has all sorts of other uses on the boat too.

Cheers,


Jean-Pierre Germain
SY Eleuthera, SM 007


On 11 Jun 2016, at 13:13, sharongbrown@... [amelyachtowners] <amelyachtowners@...> wrote:

 

Thanks for all the replies - I didn't expect this would generate so much interest!

I do have a drain plug at the bottom. This is just routine maintenance - the unit is working perfectly. I just wanted to know if it was really necessary to pump the new oil in from the bottom as the last time this was done the boatyard insisted that is was necessary to avoid getting trapped air in it. I don't have any equipment to do this. I'm convinced however that as long as I keep the drain open when refilling from the top there should be no trapped air and I can close the drain as soon as the new oil starts to come out. This is my theory anyway!
Paul


Jean-Pierre Germain,
SY Eleuthera, Amel Super Maramu 007
Porto Turistico Marina di Ragusa, Pontoon M15,
97100 Ragusa, Sicily, Italy
+44 7551 211 511
jp.germain@...


Re: Amel 54 how to chenge bow thruster oil

ya_fohi
 

Thanks for all the replies - I didn't expect this would generate so much interest!

I do have a drain plug at the bottom. This is just routine maintenance - the unit is working perfectly. I just wanted to know if it was really necessary to pump the new oil in from the bottom as the last time this was done the boatyard insisted that is was necessary to avoid getting trapped air in it. I don't have any equipment to do this. I'm convinced however that as long as I keep the drain open when refilling from the top there should be no trapped air and I can close the drain as soon as the new oil starts to come out. This is my theory anyway!
Paul


Re: [Amel Yacht Owners] B&G Depth Transducer

seagasm@...
 

Sorry for the delay with my reply Bill, some idiot during a previous ownership put a join inside my bow rail nav lights wiring and it shorted out, rewire was necessary, all good now. I am not going to risk withdrawing the transducer, I have a very dry boat and I do not want to risk water gushing inside. I do agree, I have not heard of any failures, guess a dip in the tide will be necessary, thank you all the same.

Kind Regards
Barry & Robyn
Tradewinds III SM 171


Re: [Amel Yacht Owners] Re: Mizzen Roller Reefing

Derick Gates SM2K #400 Brava
 

Vladimir,

Done!

Derick


Re: [Amel Yacht Owners] Amel 54 how to chenge bow thruster oil

Olivier Beaute
 

Hello Paul and everyone who wants to know more about the AMEL 54,

The bow-thruster of the AMEL 54 is an AMEL design built on a SLEIPNER SIDE POWER basis. AMEL makes it retractable. It has two props with 4 and then 5 (later models) blades each, more protected than on a Santorin/SM...

Paul, depending on your hull number, there is a drain plug at the bottom of the bow-thruster gear-box. The oil drains very slowly and you can fill it from the top oil container (very slow too, warm up the oil in the sun before you put it in the container).
The last AMEL 54 have a bow-thruster with a non-drainable gear-box. The unit is said to be "lubricated for life" by Sleipner. However, if you remove the lip-seals at the prop-shafts, the oil will drain, and you will need to put new oil from the top of the drive shaft tube (just like on a Santorin or SM).
Paul, can you tell your hull number?

Cheers.

Olivier


On Friday, June 10, 2016 8:24 PM, "Kent Robertson karkauai@... [amelyachtowners]" wrote:


 
OK , thanks, Bill.


On Jun 10, 2016, at 11:47 AM, 'Bill & Judy Rouse' yahoogroups@... [amelyachtowners] <amelyachtowners@...> wrote:

 
Kent,
All Amels beginning with 54 production utilize an "off-the-shelf bow thruster rather than the proprietary Amel bow thruster which ended with the last Super Maramu.
Bill Rouse
BeBe Amel 53 #387
Sent from my tablet
+1832-380-4970 USA Voice Mail
On Jun 10, 2016 11:14 AM, "Kent Robertson karkauai@... [amelyachtowners]" <amelyachtowners@...> wrote:
 
Oh, oops!  Didn't realize the 54 BT was significantly different from the SM.  I'd like to know the differences and why they changed the design.

Thanks, Bill.  Guess I shouldn't assume too much, eh?
Kent


On Jun 10, 2016, at 11:01 AM, 'Bill & Judy Rouse' yahoogroups@... [amelyachtowners] <amelyachtowners@...> wrote:

 
Kent,
He is talking about the 54 bow thruster which is entirely different than your SM bow thruster.
Sadly 54 owners do not post very many maintenance procedures in this forum. My recommendation is to communicate with SAV "at"Amel.fr
Bill Rouse
BeBe Amel 53 #387
Sent from my tablet
+1832-380-4970 USA Voice Mail
On Jun 10, 2016 10:56 AM, "Kent Robertson karkauai@... [amelyachtowners]" <amelyachtowners@...> wrote:
 
I'm not aware of any lower drain for the bow thruster, so I'm guessing you're talking about the CDrive oil.  Since you have access to the drain plug, I also assume you are on the hard.  Are you doing routine maintenance, or do you have water in the oil?  If it has been a couple of years you should change the prop shaft seals, too.

Drain the oil from the lower plug (it's best if you have something set up to keep the oil from draining all over the paint.  If you do a search you should find a thread about this that describes a threaded pipe that goes into the drain hole.
After the oil has drained out, through the drain hole, suck out what oil is left in the bottom of the lower unit with a pump with small tube on the suction side of the pump.  If your oil is milky, flush with some cheap oil a time or two (turning the p rop several times) until it comes out clean.  When you replace the plug, use a new oring.

For the Bow Thruster:
I assume the 54 bow thruster works the same as the SM, Paul.  Remove the lower unit, turn it upside down to drain the oil.  If it is milky, put a solvent in (like mineral spirits), turn the prop a few times, and pour it out, repeat until it is coming out clean.  Either wait til the solvent dries (like over night), or I put some acetone in, slosh it around a little and pour it out. After an hour it should have evaporated.  Then replace the oil, and reinstall the lower unit.

There is a good explanation of all of this in the files section.  Read that before you proceed, and follow those instructions carefully.  It's not rocket science, but eliminating steps, or ori enting seals improperly will give you a less than optimal result.  If someone sucked your oil out, they don't understand your boat.

Hope this will get you started.  If I totally misread your question, try again.
Kent
SM243
Kristy
Currently Bonaire 






On Jun 10, 2016, at 8:49 AM, sharongbrown@... [amelyachtowners] <amelyachtowners@...> wrote:

 
Hi, I need to change my bow thruster oil. When this was last done they pumped the oil up from the bottom. Is this really necessary? Would it be possible to simply drain the oil, then fill from the top until the new oil starts to drain from the bottom before closing the outlet?
Thanks
Paul
Amel 54 Ya Fohi




Re: [Amel Yacht Owners] Amel 54 how to chenge bow thruster oil

karkauai
 

OK , thanks, Bill.


On Jun 10, 2016, at 11:47 AM, 'Bill & Judy Rouse' yahoogroups@... [amelyachtowners] <amelyachtowners@...> wrote:

 

Kent,

All Amels beginning with 54 production utilize an "off-the-shelf bow thruster rather than the proprietary Amel bow thruster which ended with the last Super Maramu.

Bill Rouse
BeBe Amel 53 #387
Sent from my tablet
+1832-380-4970 USA Voice Mail

On Jun 10, 2016 11:14 AM, "Kent Robertson karkauai@... [amelyachtowners]" <amelyachtowners@...> wrote:
 

Oh, oops!  Didn't realize the 54 BT was significantly different from the SM.  I'd like to know the differences and why they changed the design.

Thanks, Bill.  Guess I shouldn't assume too much, eh?
Kent


On Jun 10, 2016, at 11:01 AM, 'Bill & Judy Rouse' yahoogroups@... [amelyachtowners] <amelyachtowners@...> wrote:

 

Kent,

He is talking about the 54 bow thruster which is entirely different than your SM bow thruster.

Sadly 54 owners do not post very many maintenance procedures in this forum. My recommendation is to communicate with SAV "at"Amel.fr

Bill Rouse
BeBe Amel 53 #387
Sent from my tablet
+1832-380-4970 USA Voice Mail

On Jun 10, 2016 10:56 AM, "Kent Robertson karkauai@... [amelyachtowners]" <amelyachtowners@...> wrote:
 

I'm not aware of any lower drain for the bow thruster, so I'm guessing you're talking about the CDrive oil.  Since you have access to the drain plug, I also assume you are on the hard.  Are you doing routine maintenance, or do you have water in the oil?  If it has been a couple of years you should change the prop shaft seals, too.

Drain the oil from the lower plug (it's best if you have something set up to keep the oil from draining all over the paint.  If you do a search you should find a thread about this that describes a threaded pipe that goes into the drain hole.
After the oil has drained out, through the drain hole, suck out what oil is left in the bottom of the lower unit with a pump with small tube on the suction side of the pump.  If your oil is milky, flush with some cheap oil a time or two (turning the p rop several times) until it comes out clean.  When you replace the plug, use a new oring.

For the Bow Thruster:
I assume the 54 bow thruster works the same as the SM, Paul.  Remove the lower unit, turn it upside down to drain the oil.  If it is milky, put a solvent in (like mineral spirits), turn the prop a few times, and pour it out, repeat until it is coming out clean.  Either wait til the solvent dries (like over night), or I put some acetone in, slosh it around a little and pour it out. After an hour it should have evaporated.  Then replace the oil, and reinstall the lower unit.

There is a good explanation of all of this in the files section.  Read that before you proceed, and follow those instructions carefully.  It's not rocket science, but eliminating steps, or ori enting seals improperly will give you a less than optimal result.  If someone sucked your oil out, they don't understand your boat.

Hope this will get you started.  If I totally misread your question, try again.
Kent
SM243
Kristy
Currently Bonaire 






On Jun 10, 2016, at 8:49 AM, sharongbrown@... [amelyachtowners] <amelyachtowners@...> wrote:

 

Hi, I need to change my bow thruster oil. When this was last done they pumped the oil up from the bottom. Is this really necessary? Would it be possible to simply drain the oil, then fill from the top until the new oil starts to drain from the bottom before closing the outlet?
Thanks
Paul
Amel 54 Ya Fohi



Re: [Amel Yacht Owners] Amel 54 how to chenge bow thruster oil

Bill & Judy Rouse <yahoogroups@...>
 

Kent,

All Amels beginning with 54 production utilize an "off-the-shelf bow thruster rather than the proprietary Amel bow thruster which ended with the last Super Maramu.

Bill Rouse
BeBe Amel 53 #387
Sent from my tablet
+1832-380-4970 USA Voice Mail

On Jun 10, 2016 11:14 AM, "Kent Robertson karkauai@... [amelyachtowners]" <amelyachtowners@...> wrote:
 

Oh, oops!  Didn't realize the 54 BT was significantly different from the SM.  I'd like to know the differences and why they changed the design.

Thanks, Bill.  Guess I shouldn't assume too much, eh?
Kent


On Jun 10, 2016, at 11:01 AM, 'Bill & Judy Rouse' yahoogroups@... [amelyachtowners] <amelyachtowners@...> wrote:

 

Kent,

He is talking about the 54 bow thruster which is entirely different than your SM bow thruster.

Sadly 54 owners do not post very many maintenance procedures in this forum. My recommendation is to communicate with SAV "at"Amel.fr

Bill Rouse
BeBe Amel 53 #387
Sent from my tablet
+1832-380-4970 USA Voice Mail

On Jun 10, 2016 10:56 AM, "Kent Robertson karkauai@... [amelyachtowners]" <amelyachtowners@...> wrote:
 

I'm not aware of any lower drain for the bow thruster, so I'm guessing you're talking about the CDrive oil.  Since you have access to the drain plug, I also assume you are on the hard.  Are you doing routine maintenance, or do you have water in the oil?  If it has been a couple of years you should change the prop shaft seals, too.

Drain the oil from the lower plug (it's best if you have something set up to keep the oil from draining all over the paint.  If you do a search you should find a thread about this that describes a threaded pipe that goes into the drain hole.
After the oil has drained out, through the drain hole, suck out what oil is left in the bottom of the lower unit with a pump with small tube on the suction side of the pump.  If your oil is milky, flush with some cheap oil a time or two (turning the p rop several times) until it comes out clean.  When you replace the plug, use a new oring.

For the Bow Thruster:
I assume the 54 bow thruster works the same as the SM, Paul.  Remove the lower unit, turn it upside down to drain the oil.  If it is milky, put a solvent in (like mineral spirits), turn the prop a few times, and pour it out, repeat until it is coming out clean.  Either wait til the solvent dries (like over night), or I put some acetone in, slosh it around a little and pour it out. After an hour it should have evaporated.  Then replace the oil, and reinstall the lower unit.

There is a good explanation of all of this in the files section.  Read that before you proceed, and follow those instructions carefully.  It's not rocket science, but eliminating steps, or ori enting seals improperly will give you a less than optimal result.  If someone sucked your oil out, they don't understand your boat.

Hope this will get you started.  If I totally misread your question, try again.
Kent
SM243
Kristy
Currently Bonaire 






On Jun 10, 2016, at 8:49 AM, sharongbrown@... [amelyachtowners] <amelyachtowners@...> wrote:

 

Hi, I need to change my bow thruster oil. When this was last done they pumped the oil up from the bottom. Is this really necessary? Would it be possible to simply drain the oil, then fill from the top until the new oil starts to drain from the bottom before closing the outlet?
Thanks
Paul
Amel 54 Ya Fohi



Re: [Amel Yacht Owners] Amel 54 how to chenge bow thruster oil

antonio scipioni
 

Hi Paul, 
I don't know IF 54 has The same bow trust mounted on my Santorin.
But IF it is, probably you have water inside cause the o-ring or joint permit to the water come inside and to the oil come up.
It was happened in my boat. 
Br
Antonio
SN VAGABUNDO 108 come back in the water in Rome 

Inviato da iPhone

Il giorno 10/giu/2016, alle ore 14:49, sharongbrown@... [amelyachtowners] <amelyachtowners@...> ha scritto:

 

Hi, I need to change my bow thruster oil. When this was last done they pumped the oil up from the bottom. Is this really necessary? Would it be possible to simply drain the oil, then fill from the top until the new oil starts to drain from the bottom before closing the outlet?
Thanks
Paul
Amel 54 Ya Fohi



Re: [Amel Yacht Owners] Amel 54 how to chenge bow thruster oil

karkauai
 

Oh, oops!  Didn't realize the 54 BT was significantly different from the SM.  I'd like to know the differences and why they changed the design.

Thanks, Bill.  Guess I shouldn't assume too much, eh?
Kent


On Jun 10, 2016, at 11:01 AM, 'Bill & Judy Rouse' yahoogroups@... [amelyachtowners] <amelyachtowners@...> wrote:

 

Kent,

He is talking about the 54 bow thruster which is entirely different than your SM bow thruster.

Sadly 54 owners do not post very many maintenance procedures in this forum. My recommendation is to communicate with SAV "at"Amel.fr

Bill Rouse
BeBe Amel 53 #387
Sent from my tablet
+1832-380-4970 USA Voice Mail

On Jun 10, 2016 10:56 AM, "Kent Robertson karkauai@... [amelyachtowners]" <amelyachtowners@...> wrote:
 

I'm not aware of any lower drain for the bow thruster, so I'm guessing you're talking about the CDrive oil.  Since you have access to the drain plug, I also assume you are on the hard.  Are you doing routine maintenance, or do you have water in the oil?  If it has been a couple of years you should change the prop shaft seals, too.

Drain the oil from the lower plug (it's best if you have something set up to keep the oil from draining all over the paint.  If you do a search you should find a thread about this that describes a threaded pipe that goes into the drain hole.
After the oil has drained out, through the drain hole, suck out what oil is left in the bottom of the lower unit with a pump with small tube on the suction side of the pump.  If your oil is milky, flush with some cheap oil a time or two (turning the p rop several times) until it comes out clean.  When you replace the plug, use a new oring.

For the Bow Thruster:
I assume the 54 bow thruster works the same as the SM, Paul.  Remove the lower unit, turn it upside down to drain the oil.  If it is milky, put a solvent in (like mineral spirits), turn the prop a few times, and pour it out, repeat until it is coming out clean.  Either wait til the solvent dries (like over night), or I put some acetone in, slosh it around a little and pour it out. After an hour it should have evaporated.  Then replace the oil, and reinstall the lower unit.

There is a good explanation of all of this in the files section.  Read that before you proceed, and follow those instructions carefully.  It's not rocket science, but eliminating steps, or ori enting seals improperly will give you a less than optimal result.  If someone sucked your oil out, they don't understand your boat.

Hope this will get you started.  If I totally misread your question, try again.
Kent
SM243
Kristy
Currently Bonaire 






On Jun 10, 2016, at 8:49 AM, sharongbrown@... [amelyachtowners] <amelyachtowners@...> wrote:

 

Hi, I need to change my bow thruster oil. When this was last done they pumped the oil up from the bottom. Is this really necessary? Would it be possible to simply drain the oil, then fill from the top until the new oil starts to drain from the bottom before closing the outlet?
Thanks
Paul
Amel 54 Ya Fohi



Re: [Amel Yacht Owners] Amel 54 how to chenge bow thruster oil

Bill & Judy Rouse <yahoogroups@...>
 

Kent,

He is talking about the 54 bow thruster which is entirely different than your SM bow thruster.

Sadly 54 owners do not post very many maintenance procedures in this forum. My recommendation is to communicate with SAV "at"Amel.fr

Bill Rouse
BeBe Amel 53 #387
Sent from my tablet
+1832-380-4970 USA Voice Mail

On Jun 10, 2016 10:56 AM, "Kent Robertson karkauai@... [amelyachtowners]" <amelyachtowners@...> wrote:
 

I'm not aware of any lower drain for the bow thruster, so I'm guessing you're talking about the CDrive oil.  Since you have access to the drain plug, I also assume you are on the hard.  Are you doing routine maintenance, or do you have water in the oil?  If it has been a couple of years you should change the prop shaft seals, too.

Drain the oil from the lower plug (it's best if you have something set up to keep the oil from draining all over the paint.  If you do a search you should find a thread about this that describes a threaded pipe that goes into the drain hole.
After the oil has drained out, through the drain hole, suck out what oil is left in the bottom of the lower unit with a pump with small tube on the suction side of the pump.  If your oil is milky, flush with some cheap oil a time or two (turning the p rop several times) until it comes out clean.  When you replace the plug, use a new oring.

For the Bow Thruster:
I assume the 54 bow thruster works the same as the SM, Paul.  Remove the lower unit, turn it upside down to drain the oil.  If it is milky, put a solvent in (like mineral spirits), turn the prop a few times, and pour it out, repeat until it is coming out clean.  Either wait til the solvent dries (like over night), or I put some acetone in, slosh it around a little and pour it out. After an hour it should have evaporated.  Then replace the oil, and reinstall the lower unit.

There is a good explanation of all of this in the files section.  Read that before you proceed, and follow those instructions carefully.  It's not rocket science, but eliminating steps, or ori enting seals improperly will give you a less than optimal result.  If someone sucked your oil out, they don't understand your boat.

Hope this will get you started.  If I totally misread your question, try again.
Kent
SM243
Kristy
Currently Bonaire 






On Jun 10, 2016, at 8:49 AM, sharongbrown@... [amelyachtowners] <amelyachtowners@...> wrote:

 

Hi, I need to change my bow thruster oil. When this was last done they pumped the oil up from the bottom. Is this really necessary? Would it be possible to simply drain the oil, then fill from the top until the new oil starts to drain from the bottom before closing the outlet?
Thanks
Paul
Amel 54 Ya Fohi