...Anyway - they just called and said they think the oil leak is the main front crank shaft seal (they just do brakes...).... Does that make sense? How hard on a 1 to 10 (have FSMs)?
newbie thanks
-Scott
You think brakes are bad, changing the front seal is a HUGE PITA! A 10 for sure!
Looking at the FSM, you'll see that you need to take off the fan, the harmonic balancer (Five hard-to-see bolts. Use a mirror), the timing belt cover, the crankshaft bolt that holds the lower timing belt gear in place, and then the oil pump where the seal resides.
I have a small leak on my front seal that is indicated by oily dirt caking around the lower front of the block
That said,
I would look very closely at the distributor o-ring seal. It runs around the hole where the end of the camshaft sticks out and drives the distributor. The distributor seal is a tough one to get into place when doing assembly/disassembly there. One way to hold that O-ring in place is to rub it down with some Syl-Glide brand silicone so it will stick into place during reinstallation. There is also an o-ring seal on the bottom of the distributor that the distributor pivots on when you adjust the timing. Sometimes it can get a bit mangled if you remove the distributor in an effort to reset the timing.
And, as others have said, the valve cover gasket.
You might have better luck finding the leak by first power-cleaning the block, the transmission and under the truck to remove all the oil and gunk. Drive it a bit to better see where the fresh leaking is coming from.
Hope this helps!