On this 81 model truck, 250 I6 with intergrated head...
There is an oil leak on the very very back that leaves a goo on the block. The leak IS NOT coming from the Valve cover, it seems to be coming from IN BETWEEN the Intake & Exhaust manifolds.
Are there any diagrams or pictures I can look at before I tear into this thing. I fear the bolts breaking when taking off the exhaust manifold... so if I could find a parts drawing, that would be great.