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 Post subject: Heat exchanger cap
PostPosted: 12 Aug 2020 09:42 
Offline
Rail Meat

Joined: 04 Jun 2017 16:14
Posts: 2
Hi all,
I'm looking to purchase the rubber heat exchanger end cap for my Westerbeke W-50 engine.
Part #23169
Hansen Marine in MA does not have any.
Any lead of a possible supplier either new (preferred) or used would be appreciated.
Thanks
Ralph
T37 #310
Eschaton


 
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 Post subject: Re: Heat exchanger cap
PostPosted: 12 Aug 2020 11:45 
Offline
Skipper

Joined: 13 Feb 2011 21:19
Posts: 254
Location: Canyon Lake, TX
Here is a "maybe".

https://www.mrcool.us/accessories/end-caps.html

And if you get desperate for something to do, they sell replacement heat exchangers. Me? If I need a new exchanger, the yard gets to do the work.

_________________
Wayne
Master and Commander of the Sailing Vessel Impetuous
Rider of Waleli Honda 1800 VTX
Subservient to no man except SWMBO
Any day without dock lines is a GOOD day!


 
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 Post subject: Re: Heat exchanger cap
PostPosted: 15 Aug 2020 12:47 
Offline
Skipper

Joined: 14 Jul 2012 20:36
Posts: 437
Location: Norfolk, Va
Mr Cool end caps and gasket won't work on the Westerbeke unit. Their heat exchangers are very good. I replaced my and was very impressed, never had a problem with overheating after and we were over-pitched.

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 Post subject: Re: Heat exchanger cap
PostPosted: 12 Feb 2021 08:36 
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Skipper

Joined: 09 Jul 2008 12:51
Posts: 251
A new exchanger is pretty easy to install... take off hoses, unscrew the manifold... the two end screws come all the way out, the two in the middle are loosened and almost out. the manifold can then be lifted up and off the engine. You'll then be able to replace the exchanger. I think a seal will come with the new exchanger but you'll probably need a new manifold seal when you reinstall.


 
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 Post subject: Re: Heat exchanger cap
PostPosted: 14 Feb 2021 20:48 
Offline
Skipper

Joined: 29 Dec 2006 09:38
Posts: 600
The heat exchanger cap is so fussy that I would recommend changing heat exchangers. I am sure you can find a new cap, but it has to be installed perfectly aligned with the groove or it is useless and your engine will over heat. This is not easy in the installation of the W50 in a Tartan 37. I have no idea what engineer thought this was a good idea. The ones with simple caps are better and more trouble free. My guess is that by the time your buy caps and have your current one cleaned you could purchase a replacement for the approximately the same price. This is why I hate marinized tractor and London cab engines. Nothing wrong with the engines, but the the "marinization" is where all the problems are with most boat diesels and these cobbled together systems are full of bad ideas. The W50 was a good engine with a pathetic cooling system. I went to Yanmar and never looked back.


 
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