Repowering a CS 36T - SailNet Community
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post #1 of 6 Old 01-19-2009 Thread Starter
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Repowering a CS 36T

The notarious westerbeke 33 in my CS 36 finally lived up to its reputation; cracked piston. On pulling the head found the cylinder walls were pitted, looks like water intrusion somewhere in the boats past. Mechanic says tolerance in walls too tiny to permit rebuild (rebore) so a new engine is in the works.

Looking at a Westerbeke 44. It will fit the Hurth trans via an adapter plate. Has anyone done this already? Would you still go with the 44 or would you go Yanmar or some other engine?

Any suggestions or advice would be appreciated. I am not mechanically inclinded but I want to know what is going on.

Aquavit
CS 36-T
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post #2 of 6 Old 03-18-2009
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Hi kerriour,

I don't have any advice to give but I'm looking into buying a CS36T and, if you don't mind, I would be very keenly interested in how much this repowering winds up costing you, what's involved, etc. Some of the engines I've been seeing seemed dodgy, I'm almost taking for granted that I'll be repowering too.

In fact, given how cramped the engine compartment is it baffles me how this engine can even be removed.

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post #3 of 6 Old 03-18-2009
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The 44B

The 44B fits perfectly with the Hurth MIV-150 V-Drive. The only modifications were quite minor.



Tranny off


Stbd rear mount:




You will need a new shaft and likely a prop.

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-Maine Sail / CS-36T


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post #4 of 6 Old 04-26-2012
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Re: The 44B

Hi Maine Sail,

I'm looking at repowering a CS36 with a westerbeke w46. It's slightly longer than the 44B (~1.5 inches longer), but otherwise very similar overall. Do you think this would work in the CS36? Could you let me know what kinds of modifications were required? Thanks!
-Josh
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post #5 of 6 Old 04-26-2012
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Re: The 44B

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Originally Posted by jmcelwee View Post
Hi Maine Sail,

I'm looking at repowering a CS36 with a westerbeke w46. It's slightly longer than the 44B (~1.5 inches longer), but otherwise very similar overall. Do you think this would work in the CS36? Could you let me know what kinds of modifications were required? Thanks!
-Josh
The 44 is really a little too much power especially if you don't have engine driven refrigeration, why the 46? There is room in back of my engine for another 1.5" but it would be getting crammed to add any other PTO's etc.. All that was done was drop the rear mounts which involved cutting and re-welding them plus a new waterlift muffler. The stringers are solid fiberglass and holes were drilled to get nuts on the back side of the mounts. There is metal embedded under there too but I prefer nuts...

You also might consider a Beta. If I were re-powering today it would be one of the top contenders. Stanley at Beta is about as good as it gets with customer support and working out the "fit"..

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post #6 of 6 Old 04-26-2012
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Re: Repowering a CS 36T

Well, the only reason I'm looking at the W-46 is because there's a really nice rebuilt one for sale cheap that's available (~$1500). I've also been told that the original w-30 is a bit underpowered for the boat (at least for rough weather), so wanted to upgrade the horsepower a bit (although the 46 is almost certainly more than would be needed). Basically, I'm just looking to see if the w-46 would work, as the opportunity to get one cheap seems to exist...
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