[jers36]

I am trying to find what is causing overheating problems on my 36 pickup with the original stock engine. I thought I had it solved last fall but it is acting up again. I bought a new compression gauge and checked the compression trying to determine if I had a blown head gasket. This is my readings from 1-8, 70-65-65-80-70-60-70-70. The truck runs fine except for the over heating, I have read on some previous sites here that this not the best but if it isn't broke don't fix it. I am going to get one of those combustion leak detectors that you put a chemical in it and if it changes color when exposed to combustion gases you could have blown head gasket cracked block etc. as a double check. What do you think of the compression readings? Thanks