Auto Parts and Repairs
GM and GMC

Valve lash adjustment procedure for a 1985 Gmc with a 350?

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Wiki User
2007-03-02 20:12:12

start at zero lash on all tappets and then tighten 1/4 turn on

each until you go one turn 360 engine will bogg every every 1/4

turn so let it recover before next turn and be sure engine is warm

if possible

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