I thought I posted this but now it is not appearing in my threads, so forgive me if this question appears twice.
I was in the process of swapping the impeller on my 2002 15hp 2-stroke Mercury outboard
. I brought the faceplate to a marine
store and he recommended that I replace the whole water
pump because the plate was pretty scratched up and the could be leaking water
I took out the old water pump and seals
, which meant that the gear
had to come out too. I had changed the gear
at the end of the season last year, at which time it looked very gray. This seemed normal considering all the use it got last year on my 1,500 mile cruise
. But when I drained the 'unused' oil, now it seemed a little milky to me. Water getting in, I guess. Or was a little residual water already in there?
So, hopefully the water just got in at the water pump, but to be sure I decided to replace the seals
and o-rings around the propeller
as well. Is there anything else I should look to do now to make sure the lower unit is completely water tight before put it back together and refill the gear oil? I have had the motor
for 3 years, and I have only been replacing the gear oil and impeller as routine maintenance
. Anything else that should be done?
Lastly, there is a ton of gunk in the exhaust
housing, both above and below the waterline. It is thick and greasy and almost a quarter inch thick in some places. Can I use some sort of solvent to clean this, or any other method? Will this kind of buildup cause me any problems, or is it the sign of any problems?
Thanks a lot for any tips and advice!