Different Raw Pumps on W-50?

Velera · **Joined:** 29 Dec 2006 09:38 **Posts:** 656

I had used and replaced Sherwood raw water pumps during the 15 years I had my W-50. Do some folks have a Jabsco? Or is that the smaller W-40 engine?

T37sailor · **Joined:** 24 Oct 2006 16:10 **Posts:** 61

Velera,

I have a W50 in my 1980 T37 #231 with a Jabsco raw water pump. The pump model number is 5320-0011.

Regards,
Craig Connolly
Recollections

Tortuga's Lie · **Joined:** 27 Oct 2006 10:32 **Posts:** 827

My W-40 has the Sherwood. Don't know the model off hand.

carl s · **Joined:** 31 Dec 2006 13:33 **Posts:** 90

The W50 parts book lists the jabsco pump however, my w50 came with a sherwood brass pump. I think they are very similar pumps and Westerbeke used either one. I am surprised how far out on the pump shaft the drive sheave has to be for belt alignment. Overhung load on the pump bearing looks like it could be an issue if the belt is tightened too much.
Carl, Mawki, Ser 295

Velera · **Joined:** 29 Dec 2006 09:38 **Posts:** 656

I went through 2 Sherwood pumps (bearings went) in about 3000 hours on my W-50. I am not sure if this is high or low. I was careful about belt tension. I always figured I got about500 hours on an impeller--if I remembered to open the valve and ran in clean water.

redvette · **Joined:** 14 Dec 2006 22:13 **Posts:** 59

I'm pretty sure mine is the Jabsco. 1981 T37, W50.

Court · **Joined:** 21 Oct 2008 18:33 **Posts:** 22

What is the model number for the Sherwood pump. My W50 has the Jabsco 5320 but I'm not too happy with the availability of parts and the price for a spare is a bit steep compared to similar Jabsco pumps.

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Different Raw Pumps on W-50?

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