Actually the tensioner is mounted to the head, just in front of the exhaust manifold. I also would have thought that any gasket above the block would have been included in the head set. Guess that's what I get for thinking, need to leave that up to the engineers that build these things.
Always said that if a mechanic was to design a vehicle, it would be the ugliest thing to hit the road, but you could work on it.:p

__________________
1971 R600 Mack toterhome (SuperDawg)
99 NU-WA Snowbird 34+2 SE 102 5er
If it's not diesel, it's not in my stable!
53 F100 617.951/auto
95 Dodge 3500 Cummins/5 speed service truck