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Re: [Amel Yacht Owners] Onan MDKKDP Heat Exchanger

Alan Leslie
 

Yup, mine is the same , #437, and it is connected to the grounding system
BUT it still corrodes....mine needs a really good cleanup and the endcaps replacing.
The Onan is not a very well designed unit from a number of points of view...that heat exchanger in my view is too small, and the raw water impeller pump is terrible...chews impellers at 200 hrs or less...I'm going to replace it with a March 220V A/C centrifugal pump...no impeller to change...ever.
Cheers
Alan 
SV Elyse SM#437
Re: [Amel Yacht Owners] Onan MDKKDP Heat Exchanger

yahoogroups@...
 

Terry & Dena,

Also, take a look at this photo album:


Bill
BeBe 387
Re: [Amel Yacht Owners] Onan MDKKDP Heat Exchanger

Bill & Judy Rouse <yahoogroups@...>
 

The following is the way things were built on #387:
The original heat exchanger has a ground strap from the bolt on one of the clamps holding the heat exchanger to the central ground lug on the drain pan of the generator. Paint is scraped from the exchanger where the clamp is pressed against it.

I do not see a yellow/green wire leading to the the Onan from the central bonding system, but I am sure it is connected to earth at the 220 panel.

Bill Rouse
BeBe Amel 53 #387
sent from my tablet

On Nov 23, 2014 10:25 PM, "terencesingh@... [amelyachtowners]" <amelyachtowners@...> wrote:

 

Just replaced the original heat exchanger with an after market unit supplied by SeaKamp Engineering. Good people to deal with.

The replacement unit has a grounding lug on the top with a label "Connect to Engine". The original unit did not have this.

Should I connect it to the generator engine block or the boats bonding system? (Yellow and Green wiring)

Or do nothing?


Terry&Dena

SV Libby SM#197

Newport Beach
Re: Main Sail Roller Battens

Jose Venegas
 

Dave, can you be more specific about the problems your sailmaker had with with the Rutgerson roller battens ?  Is it a problem with durability or jamming?  I had the chance to play with them and I thought the idea was briliant.  

Thanks agin for your answers

Jose.
Re: [Amel Yacht Owners] Re: Ullman Sails

Dave_Benjamin
 

Craig,

Apologies for referring to you as Chris in my last post. 

Also should have mentioned that North has a large loft in Sri Lanka where much of their production takes place. Sri Lanka is known for having much looser laws and standards than China. People who don't do business in China on a routine basis are often surprised by some of the rules there. For instance, maternity leave for an employee is 98-113 days under Chinese labor law. The workers there have far more days off for various holidays and festivals than a worker in the US.

Obviously not all companies follow the rules. However as a very visible western employer, CSF is extremely diligent when it comes to compliance with all the rules. I have worked very closely with several of the engineering managers over the years and if I showed someone a transcript of the conversations, they'd assume I was talking to someone here in the US or UK. 

Example:
Me - So what are you doing this weekend?
Engineer - Saturday I'm going out with friends to (name of local bar/disco) and Sunday we're going rock climbing. 
Re: [Amel Yacht Owners] Re: Ullman Sails

Dave_Benjamin
 


Chris,

Many Doyle lofts use CSF for their manufacturing needs, even though Doyle has their own loft in China. 

The reason my company is able to offer sails more economically is we have a very efficient business model and we're not restricted to any set geographic territory. Right now I have close to 50 sails in design or production for customers in the EU, Australia, and North America. We keep our overhead low and don't go the traditional expensive advertising route.

---In amelyachtowners@..., <sangaris@...> wrote :

Dave,
Very interesting article on your sail manufacturer, China Sail Factory (CSF) - thanks for the post. It sounds like they are technologically right up there with the Norths & Doyles but with a price advantage.
Cheers,  Craig, s/v Sangaris, SN#68
Re: [Amel Yacht Owners] Onan MDKKDP Heat Exchanger

Jean-Pierre Germain <jgermain@...>
 

Thanks Terry,

I've overhauled the exchanger and will carry spares only ... These Onans all corrode at the exchanger  I'm told

Fair winds

Jean-Pierre


On 23 Nov 2014, at 20:52, terencesingh@... [amelyachtowners] <amelyachtowners@...> wrote:

 

Hi Jean-Pierre, my original one was patched up and as we are about to set off on an extended cruise I decided to be proactive and change it out. The old unit seems to be usable and I will keep it as a spare.
I have also replaced all the cooling hoses on the generator, both coolant and raw water. After 17 years they are showing signs of age and starting to leak.

---In amelyachtowners@..., wrote :

Greets Terry,

Why did you have to replace it?

I'm having issues too and wonder if a switch is better than a battle....




On 23 Nov 2014, at 20:25, terencesingh@... [amelyachtowners] <amelyachtowners@...> wrote:

 

Just replaced the original heat exchanger with an after market unit supplied by SeaKamp Engineering. Good people to deal with.

The replacement unit has a grounding lug on the top with a label "Connect to Engine". The original unit did not have this.

Should I connect it to the generator engine block or the boats bonding system? (Yellow and Green wiring)

Or do nothing?


Terry&Dena

SV Libby SM#197

Newport Beach
Re: [Amel Yacht Owners] Onan MDKKDP Heat Exchanger

islandbwoy4434
 

Hi Jean-Pierre, my original one was patched up and as we are about to set off on an extended cruise I decided to be proactive and change it out. The old unit seems to be usable and I will keep it as a spare.
I have also replaced all the cooling hoses on the generator, both coolant and raw water. After 17 years they are showing signs of age and starting to leak.

---In amelyachtowners@..., <jgermain@...> wrote :

Greets Terry,

Why did you have to replace it?

I'm having issues too and wonder if a switch is better than a battle....




On 23 Nov 2014, at 20:25, terencesingh@... [amelyachtowners] <amelyachtowners@...> wrote:

 

Just replaced the original heat exchanger with an after market unit supplied by SeaKamp Engineering. Good people to deal with.

The replacement unit has a grounding lug on the top with a label "Connect to Engine". The original unit did not have this.

Should I connect it to the generator engine block or the boats bonding system? (Yellow and Green wiring)

Or do nothing?


Terry&Dena

SV Libby SM#197

Newport Beach
Re: [Amel Yacht Owners] Onan MDKKDP Heat Exchanger

Jean-Pierre Germain <jgermain@...>
 

Greets Terry,

Why did you have to replace it?

I'm having issues too and wonder if a switch is better than a battle....




On 23 Nov 2014, at 20:25, terencesingh@... [amelyachtowners] <amelyachtowners@...> wrote:

 

Just replaced the original heat exchanger with an after market unit supplied by SeaKamp Engineering. Good people to deal with.

The replacement unit has a grounding lug on the top with a label "Connect to Engine". The original unit did not have this.

Should I connect it to the generator engine block or the boats bonding system? (Yellow and Green wiring)

Or do nothing?


Terry&Dena

SV Libby SM#197

Newport Beach
Onan MDKKDP Heat Exchanger

islandbwoy4434
 

Just replaced the original heat exchanger with an after market unit supplied by SeaKamp Engineering. Good people to deal with.

The replacement unit has a grounding lug on the top with a label "Connect to Engine". The original unit did not have this.

Should I connect it to the generator engine block or the boats bonding system? (Yellow and Green wiring)

Or do nothing?


Terry&Dena

SV Libby SM#197

Newport Beach
Re: [Amel Yacht Owners] Re: Ullman Sails

Craig Briggs
 

Dave,
Very interesting article on your sail manufacturer, China Sail Factory (CSF) - thanks for the post. It sounds like they are technologically right up there with the Norths & Doyles but with a price advantage.
Cheers,  Craig, s/v Sangaris, SN#68
New file uploaded to amelyachtowners

amelyachtowners@...
 

Hello,


This email message is a notification to let you know that
a file has been uploaded to the Files area of the amelyachtowners
group.


File : /Sails and Sailmaking info for Amel owners/Professional Boatbuilder, Oct-Nov 2013.pdf
Uploaded by : Dave_Benjamin <dave_benjamin@...>
Description : Article published in Professional Boatbuilder by Nigel Calder. Of particular interest is information on HPV (High Performance Vectran) and Vacu-Fix construction method for load path sails.


You can access this file at the URL:
https://groups.yahoo.com/neo/groups/amelyachtowners/files/Sails%20and%20Sailmaking%20info%20for%20Amel%20owners/Professional%20Boatbuilder%2C%20Oct-Nov%202013.pdf


To learn more about file sharing for your group, please visit:
https://help.yahoo.com/kb/index?page=content&y=PROD_GRPS&locale=en_US&id=SLN15398


Regards,


Dave_Benjamin <dave_benjamin@...>
Re: [Amel Yacht Owners] Re: Ullman Sails

Dave_Benjamin
 

Eric,

It used to be there was an option to send something directly to a group member without sending to the entire group. Let me see if I can add the article to the files section. Otherwise, please drop me an email - dave"AT"islandplanetsails.com
Re: [Amel Yacht Owners] Main Sail Roller Battens

Alan Leslie
 

Well, earlier this year we sailed 2400 miles from NZ to Tahiti and the wind was never less than 30knots to Raivavae, and mostly sur le nez.
We had 3+ days of 40 knts and one day of 50+ knts (we don't know how much cos the B&G only goes to 50)
We hove to during the 50+ night.
We reefed and un-reefed without problems.
The ONLY problem we have had is the absolute very top of the leech folding over and that was because Deme Voiles had made a big knot at the end of the leech cord and it wouldn't come out of the mast slot.
That was fixed by untying the knot and sewing the end of the leech cord to the sail and covering it with sail repair tape.

WE are very happy with our battened Deme Voiles sails...and we go better to windward than most Amels !!

Cheers
Alan
SV Elyse SM437
Re: [Amel Yacht Owners] Main Sail Roller Battens

Peter Forbes
 

Michael,

I have had no problems YET furling my main with battens - I have had only up to 40 its and am cautious and always try to reef early. But thank you for the warning - I’ll keep a close eye on this issue.

Peter Forbes
Amel 54 #035 
Corfu, Greece - scheduled for ARC and Word ARC Nov 2015 then Jan 2016

On 22 Nov 2014, at 08:25, Michael Last lastmd@... [amelyachtowners] <amelyachtowners@...> wrote:

Andrew.

 I'm sorry to rain on your parade but I must admit that I don't have anything good to say about the short vertical battens on the main sail on my 54. I have 40,000 miles on the original Demme sails and while I am a fan of hydranet, I'm not so keen on the battens. I have had no end of trouble with the leach folding on itself and the batten pockets occasionally jamming, despite making sure the boom was in good position prior to furling and unfurling. 
So much so, that I have just had the positive roach taken out and the battens removed by North Sails in Capetown, SA. I have lost about 5% of the main sail area and I think this is acceptable in return for the peace of mind in knowing the the main will furl without problem in any weather and any point of sail.
It may be that the short vertical battens will work well on the SM's but I can't recommend them on the 54. I note that the 55 has no vertical battens.
I would be interested in the experience of other 54 owners and Dave Benjamin on this topic.



-----Original Message-----
From: Andrew Lamb andrew.lamb@... [amelyachtowners] <amelyachtowners@...>
To: amelyachtowners <amelyachtowners@...>
Sent: Fri, Nov 21, 2014 10:29 pm
Subject: Re: [Amel Yacht Owners] Re: Main Sail Roller Battens

 
Having just taken delivery of main and mizzen short battened deme voile hydranet sails I am reassured to hear some positive experiences!

Andrew

Ronpische
SM472

On 22 Nov 2014, at 03:35, divanz620@... [amelyachtowners] <amelyachtowners@...> wrote:

 
We too have short vertical battens in our Deme Voile Hydranet sails both main and mizzen.
The battens are fibreglass.
There is no problem furling the sails if you are careful to keep the battens parallel to the mast - its not so difficult.
The performance improvement of a sail with a positive roach is worth it.
Taking the sail down is no issue at all with the battens in place.

Cheers
Alan 
SV Elyse SM437 
Re: [Amel Yacht Owners] Re: Main Sail Roller Battens

svcallisto369
 

Andrew.
 I'm sorry to rain on your parade but I must admit that I don't have anything good to say about the short vertical battens on the main sail on my 54. I have 40,000 miles on the original Demme sails and while I am a fan of hydranet, I'm not so keen on the battens. I have had no end of trouble with the leach folding on itself and the batten pockets occasionally jamming, despite making sure the boom was in good position prior to furling and unfurling. 
So much so, that I have just had the positive roach taken out and the battens removed by North Sails in Capetown, SA. I have lost about 5% of the main sail area and I think this is acceptable in return for the peace of mind in knowing the the main will furl without problem in any weather and any point of sail.
It may be that the short vertical battens will work well on the SM's but I can't recommend them on the 54. I note that the 55 has no vertical battens.
I would be interested in the experience of other 54 owners and Dave Benjamin on this topic.

Michael 
 
svcallisto.blogspot.com


-----Original Message-----
From: Andrew Lamb andrew.lamb@... [amelyachtowners]
To: amelyachtowners
Sent: Fri, Nov 21, 2014 10:29 pm
Subject: Re: [Amel Yacht Owners] Re: Main Sail Roller Battens

 
Having just taken delivery of main and mizzen short battened deme voile hydranet sails I am reassured to hear some positive experiences!

Andrew

Ronpische
SM472

On 22 Nov 2014, at 03:35, divanz620@... [amelyachtowners] <amelyachtowners@...> wrote:

 
We too have short vertical battens in our Deme Voile Hydranet sails both main and mizzen.
The battens are fibreglass.
There is no problem furling the sails if you are careful to keep the battens parallel to the mast - its not so difficult.
The performance improvement of a sail with a positive roach is worth it.
Taking the sail down is no issue at all with the battens in place.

Cheers
Alan 
SV Elyse SM437 
Re: [Amel Yacht Owners] Re: Main Sail Roller Battens

Andrew & Kate Lamb
 

Having just taken delivery of main and mizzen short battened deme voile hydranet sails I am reassured to hear some positive experiences!

Andrew

Ronpische
SM472

On 22 Nov 2014, at 03:35, divanz620@... [amelyachtowners] <amelyachtowners@...> wrote:

 

We too have short vertical battens in our Deme Voile Hydranet sails both main and mizzen.

The battens are fibreglass.
There is no problem furling the sails if you are careful to keep the battens parallel to the mast - its not so difficult.
The performance improvement of a sail with a positive roach is worth it.
Taking the sail down is no issue at all with the battens in place.

Cheers
Alan 
SV Elyse SM437 
Re: [Amel Yacht Owners] Re: Main Sail Roller Battens

Alan Leslie
 

We too have short vertical battens in our Deme Voile Hydranet sails both main and mizzen.
The battens are fibreglass.
There is no problem furling the sails if you are careful to keep the battens parallel to the mast - its not so difficult.
The performance improvement of a sail with a positive roach is worth it.
Taking the sail down is no issue at all with the battens in place.

Cheers
Alan 
SV Elyse SM437 
Re: [Amel Yacht Owners] Re: Main Sail Roller Battens

karkauai
 

Jose,
I've had vertical battens in my sails since 2007.  They are a vast improvement over the unbattened sails.  They furl and unfurl easily if you just pay a little attention to the orientation of the boom.  I've not encountered any problems when dropping the sails for cleaning and repair.  I'd recommend then for Amel furling sails.
Kent
SM243
Kristy


On Nov 21, 2014, at 10:33 AM, jvenegas@... [amelyachtowners] <amelyachtowners@...> wrote:

 

Thank you both Dave and Craig,


The battens my sailmaker is proposing to use are not the ones I sent links on.  These are made of stainless steel and he has had good experience with them in other boats as long as there is enough space on the mast, as I said.

I know about the vertical battens, and would not even think about using that on my SM.  Imagine you have to bring the sail down with them in place!.  Also, if the furling is not exactly perpendicular to the battens, as somethimes happens when  the blade twists when furled under some wind conditions, the vertical battens will corck screw and jamming is almost assured.  A terrible sail shape after a little sail stretch is something else that I cant imagine seeing on my boat.  
The idea with the Roller Battens is not to create a huge positive roach, but to add some sail aloft.  So, it is not for use as full battens, but just for the last 3 or 4 ft near the lech.  I will chack that article, Graig,  thanks again

Jose


  The link is:


and they are called  "Roller battens" Page 41 of their manual
Re: [Amel Yacht Owners] Re: Ullman Sails

kimberlite@...
 

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