RE: Head woes

Jarrid Gross (GROSS(at)unit.com)
Mon, 4 May 1998 10:06:00 -0700


Chris S. Mottram(at)ECCI wrote,

>Help!
>I had my head milled and valves reworked. I thought I would refit the
>head, reattatch the valve train, torque the head, warm it up, retorque
the >head, set the valves, done. Well it isn't even close to starting to
allow >it to warm up. Where did I go wrong? Should I try to set the valve
>clearances first? If I do that will I have to reset them after I
retorque >the head?

If you milled the head, and did not adjust the valves after installing the head, the lash will be taken up by the amount the head was milled times 1.4 (the aprox rocker ratio).

You must roughly adjust the valves prior to running the engine to ensure that the valves really close, starting with the valves a little loose wont hurt for the 15 minutes or so it takes to bring the head up to operating temp.

Jarrid Gross