mep803a odd oil leak help

[Ray70]

Definitely not coolant, it behaves totally different when you drip it on the paint.

 

[Guyfang]

Do you still have the top and doors on the gen set? If so, thats the first thing I would do when I am scrutinizing A set for leaks. Yes, its kinda a PITA. but you can see a lot better into dark places.

 

[2Pbfeet]

Do you still have the top and doors on the gen set? If so, thats the first thing I would do when I am scrutinizing A set for leaks. Yes, its kinda a PITA. but you can see a lot better into dark places.

I think given where @jqc99 seems to be at this point, it might be a PITA that might be warranted, too. An impact driver or drill with the right torque settings makes pretty quick work of it, and when you drop the nuts over the air filter for the umpteenth time, you can put in a couple of rivet nuts. If it does turn out to be a fuel leak, a chunk of work is already done.

All the best,

2Pbfeet

 

[Light in the Dark]

He might even be lucky and have one with all captive nuts (like whats on the edge above the fuel fill panel, where access to the backing nut isn't possible). I've had a number of sets come in that were almost entirely captive nuts, which is sooo nice.

 

[Toolslinger]

Yea, but if they're all captive nuts, you don't get to use all the weird shaped 3/8 wrenches you've collected over the years to access some of the nuts....

And then there's the captive nuts that seize and spin, and you get to break things to get in...