7500 Onan
I posted this on IRV2 and didn't get much response. My QD7500 Onan is not on a slide and has to be dropped down to take the cover off to gain access to the engine and internal parts. I was wondering ...
Forum Discussion
WOW, 30K hours. I thought I had a lot at 3500. Still on original fan belt.
So my 7500 has picked up a slight oil leak. Coincidently with an oil change but it’s not at the filter, it’s above the filter.
It’s weird, it leaks about a third of a quart over a few days then almost stops. It doesn’t appear to leak while running.
Knowing what you know, what might you suspect?
According to the parts breakdown there are a few items above the filter that could cause an oil leak. The injector pump is one area as well as a block off plate or two as well. You'll need to pull the covers to see what it is for certain.
