SailNet Community - View Single Post - Premature impeller failure cause
View Single Post
Old 07-10-2012
jrd22's Avatar
jrd22 jrd22 is offline
Courtney the Dancer
Join Date: Nov 2000
Location: San Juan Islands., WA, USA
Posts: 3,844
Thanks: 3
Thanked 18 Times in 18 Posts
Rep Power: 15
jrd22 will become famous soon enough
Re: Premature impeller failure cause

I think something other than the supply line possibly being a bit too small is going on. If the through hull, strainer and hose supplied the 46 OK I don't see why the impellers are falling apart on the new engine. You said the new impeller is smaller than the old one meaning that it's a smaller pump overall than the old pump. That doesn't make sense to me as they are sized according to gpm required and that would mean that the higher HP engine requires less cooling water than the old engine and if that is true then the through hull and hose should be more than adequate. I would talk directly to Westerbeke and confirm that you have the correct pump for that engine.
SV Laurie Anne

1988 Brewer 40 Pilothouse

Reply With Quote Share with Facebook