My dad owned my jetboat before I purchased it from him.
He said he had always had a problem losing lube oil from the bowl. It's supposedly a JB pump.
There is about 20 hours on the rebuilt 455 and on the jet drive.(new seals, impeller, wear ring etc.)
When he rebuilt the jet drive, a jetboat "specialist" had suggested maybe trying to double seal the bowl to prevent lube loss.
Anyways, that is what my dad did and the damn thing is still losing.
I usually check the bowl after every hour of running time or anytime I've been on the lake. I usually find the bowl is 1/2 lube, 1/2 water. Sometimes it's even more thinned out than that.
Can anybody relate to this problem or give advice?
Are there any decent internal drawings or repair manuals on this pump?
What is the thickest lube I should try running in there(I'm running a 90 weight now)?
Thanks and sorry for the long post, this is getting frustrating!