History: Trooper overheated do to waterpump. I replace the waterpump and decided while I have the front of the engine apart I would put a new timing belt on it. When I put the new timing belt on I was one tooth off. Well that damaged my valves. I had the head rebuilt and resurfaced, the machinist told me he had to surface farther than recommended by manufacturer which 15 thousands, he went 20 thousands. But said if I installed s shim I would be ok.
The problem: I put the reworked head on, torque it down put it everything back on and started it up. Started great ran great. I let it warm up to operating temp. then shut it down. I let it cool then started it back up. It idled great for a few minutes then dropped off idle and stalled. I started it back up and kept it running with the accelerator. Then the dreaded white smoke came bellowing out the tail pipe. My first thought is I blew the head gasket. But I checked the compression in every cylinder and they all were 165ish psi. so compression is fine.
My questions are:
Can the head gasket be blown and still get good compression readings?
Has anyone used a shim between the gasket and block and it work fine for them?
Can coolant get in the engine any other way besides a blown head gasket?
Help anyway you can, I love this truck and want to keep it. Of course money to worth ratio is starting to be the problem.