Originally Posted by Rex Delay
I had a Bukh DV20, great engine for 28 yrs. The raw water pump
seal failed, sea water got into oil
- engine seized. Now have Kubota. Seems a common failure.
The waterpump should have a drain hole so if the inner seal fails the water runs out as a warning and to stop contaminating the oil, unfortunately sometimes the hole gets blocked with paint
, so as a precaution you should inspect the pump when servicing and make sure the hole is clear. I bought new seals
from Eriks a specialist seal company for £1.00 (Aprox $1.20) this year.