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[schn0354]

Pschocoder,

After investigating further, the head bolts do appear to be TTY. They were torqued to 22 ft/lbs, additional 90 degrees, and additional 90 degrees again in a three step squence instead of just to a particular final torque spec. This is typical of a Torque to Yield bolt with an aluminum head. At the final turn I was reading 175 ft/lbs on the torque wrench, so the cylinder head is definitely on tight. Perhaps too tight? I was informed that the bolts can be reused if not visibly stretched or have damaged threads. Haver heards this advice from a number of techs now. However, I understand by definition TTY bolts stretch and should not be re-used. Well since the head bolts are already on, I am certainly not taking them off and getting another head gasket set. If they are TTY, it is odd that the Toyota manual does not mention using new head bolts. Haynes manual does not mention it either. Toyota does not stock them at the dealership. Very few sources online sell them. Confusing. A multi-layered steel head gasket was used, similar to the original. They are very durable, but require tight tolerances. If the head gasket leaks when the block and cylinder head expand, I will be very dissapointed!

Your timing advice is the same as what I have. I put a paint mark on the valve cover housing and distributor rotor before removing. I also put a scratch mark on the exhaust cam indicating the distributor position. I am hoping to not have to use a timing light. What is there to adjust anyways?