I have two D2-40s driving saildrives on our cat. Engines have about 1K hrs on each. We ran for the last two days without incident but noticed very low output today from STBD raw water
discharge in exhaust
and visibly low flow through strainer and from impeller output into heat exchanger
I suspected a worn impeller, so changed it with no improvement. (Old impeller was worn but no missing lobes). Also checked strainer for blockage and made sure it was primed before restarting. I had cleaned both hulls and all intakes a week ago. We've noticed over last several weeks that both engines are leaking raw water
(perhaps a gallon after a day of motoring) from the impeller/block interface and am suspecting (after reading another thread that the shaft bearings and seals
will have to be rebuilt).
Any ideas what would suddenly cause the lack of water
on the STBD engine
? I should have jumped over and checked to see if I had snagged a plastic bag, but we were sailing along single
reefed at 9kts and were under a time crunch to get back home when I finished changing the impeller. Thanks!