BIG Oil Leak Options

[Fastbird]

Ok guys, time to fix this. I've had a LARGE oil leak on my Celi for quite some time now. It's odd though, because I can't find it! Here's things I've just checked again:

Pulled the Distributor, no leak, no sign of leaking, O-Ring is fine, inside is dry.
Valve cover has residue along back side, but it's NOT the leak as the residue is dry.

The only things I can think of are it being either the oil pan gasket, head gasket, or the rear main.

My problem in tracking it down is that I have all the undershields off of the car and it's blowing the oil everywhere. Around the front and back of the motor, up on top of the tranny, ect. I'm leaning on the oil pan gasket right now because there's a LOT of residue along the pan rails and some cracked silicone in spots, but the oil on top of the tranny leads me to think otherwise. Good news is that I'm pulling the pan right now to have a 1/8 NPT bung welded in to relocate my oil temp sensor.

Just throwing a feeler out there, seeing if anyone has any other ideas..........as I'm stumped on this one. I know the distributor o-ring is notorious for leaking, but trust me when I say there is ZERO evidence of a leak there and I've thoroughly inspected it today and the seal is fine.

[lagos]

That sucks, but at least its an easy spot to get to. Craftsman screw extractors should be able to get it right out. You might even be ok with that one missing, since the oil pan as about a billion nuts one next to the other, holding it on.
Toyota sells its own form in place gasket in a tube. Its much better then the normal rtv stuff, might be worth a try.

[Fastbird]

That sucks, but at least its an easy spot to get to. Craftsman screw extractors should be able to get it right out. You might even be ok with that one missing, since the oil pan as about a billion nuts one next to the other, holding it on.
Toyota sells its own form in place gasket in a tube. Its much better then the normal rtv stuff, might be worth a try.

Yeah, I'm considering the Toyota stuff, but first thing I'm going to try is to see if I can't get a Fel-Pro rubber gasket. Those have worked well for me in the past on other things.

As for the bolt, unfortunately it's located right above the front to back crossmember, so I'm going to have to put the hoist on the motor for extra support and drop that cross member so I can get a straight shot at what's left of that bolt. Would be a good time to upgrade to those motor mount inserts, but I don't have the scratch for it right now.