Re: Distributor rotor will not turn.
I had a 76 with a 360 - same motor physically. The pan gasket was leaking, and I was able to unbolt the motor mounts, jack the engine up with a floor jack as high as I could get it. Yep, the tranny hit the body, but I just kept jacking a little...did not do any damage.
I put a 2x4 block of wood between the motor mount on the engine and the mount on the frame. That gave me "just enough" clearance to get the pan off....still had to turn the crank to clear one of the rod journals....
It is not fun but is can be done....actually, trhere is so much jockeying around, you probably need to plan on about three times the amount of time you think you'll need. And, of course, getting the dumb thing back on is another issue...have fun.
2006 F-250 Duper Duty
V-10 6.8 Liter
6 Speed manual
2005 Pilgrim 5th Wheel