ML> MH> I have never done anything like that, nor would be brave enough to
ML> MH> work on the open engine while it was running.

ML>really?? this was the normal SOP "back in the day"... you
made the rough
ML>adjustments to the valves and then fired it up so as to place the feeler gua
ML>in the slots while the engine was running to ensure that the gap was proper
ML>while running... the only real "gotcha" was watching out
for the oil pumping
ML>out of the push rods... it could get real messy at times ;)

Particualrlt if workign on a Corvair engine. I had three of those. A
1963 Van, A 1965 Corsa and later I put a corvair engine and automatic
transmission in a 1971 VW van.
I had a set of Valve covers cut in half for adjusting the valves on
those engines.
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 þ SLMR 2.1a þ 0