[LoCascio Inc.]

The situation:
My 1000 my rebuilt 12v has a very slow but steady leak. My best guess is something behind the adapter plate (follow arrows in pics). Its definitely not the #6 valve cover. It’s got 10qts of oil but reads over on the dipstick though.

Questions:

1. Is this oil pan dent deep enough to make 10qt of oil read to full?
2. Would being overfilled cause the rear main to leak?
3. If 1&2 are true, would running 9-9.5qts of oil “fix” my leak?

Pics:

 

[Blackduck596]

That dent is no enough to cause a fill problem.
Have a good look at the tappet cover (sideplate), the seals on those bolts tend to loosen and the gasket leaks.

 

[char1355]

Agree that dent isn't bad enough to cause an issue. If it's leaking out back then you likely have a bad crank seal or maybe getting around the oil pan gasket. Tappet cover is also a good leak area but that one should be easy to spot.