Join Date: Mar 2006
Thanked 11 Times in 11 Posts
Rep Power: 14
Re: Yanmar 3YM20 sea water pump leak...repair or replace?
What i did was buy a new shaft and the bearings, oil seal, spacer, c-clips, o-rings and disk, LH nut. Re Built both shafts (new and old). Fit new into pump and keep old rebuild as spares. Only bought shaft, LH nut, disk and spacer from Yanmar dealer. Oil seals, o-ring and bearings from auto supply shop. Use waterproof grease when rebuilding pump.
2002 Hunter 326, SV Millennium 2
1999 Macgregor 26X, SV Millennium