You back the adjusting screw out till you get a small amount of play & tighten it down 3/4 turn.
Be shure the valve is not opening or closeing.
Those engines can get scored pistons & sound
similar to valve noise. smile


They say money can't buy happiness. It can buy old Chevy trucks though. Same thing.
1972 Chevy c10 Cheyenne Super
In the Gallery Forum