honda 225 lower unit from hell

kyclassics · #1 (**permalink**) 09-08-2011, 06:32 PM

Any one out there know the dim. of the waterpump shaft at the waterpump seals. This is the one that keeps oil and water from mixing. I have put 8 sets in in the last 3 weeks and cant fix the problem. Shaft is brand new from honda as we converted a 30' to a 25' with a new shaft and all new seals. I'm thinking the shaft is over cut and the seals are too loose. Any help would be appreciated. Thanks Steve

boats.net · #2 (**permalink**) 09-09-2011, 09:17 AM

No the manual doesn't list that measurement, if you still have old shaft compare the two to see if same.

kyclassics · #3 (**permalink**) 09-12-2011, 04:17 PM

Hey I fixed the lower unit leak but found that most of the oil is from the engine. I disasembled it to the oil pan and ran a waterhose to the water pickup in order to run it for a few minutes. Upon shutdown by the key I caught all the water draining from the engine . On the tail end of the drain cycle here came the engine oil down the pick up tube and it continued to drip for about 30 min. I had already flushed the engine so it wasn't left over from the lower unit. Anyone have any ideas where internally this oil might be comming from? Thanks Steve

boats.net · #4 (**permalink**) 09-13-2011, 01:36 PM

Probably start with inspecting oil pump and housing.