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Lapel, In | Can you still buy a new one ?I have also seen the detent roller worn flat and on occasion found the roll pin broken.. Got one in the shop today.Detent not holding Found the shut off stop was missing its o ring. Had a feeling something didn't go together right. Finally figured out the chamfer on three valve bores are rough and grabbed the back up washers and wedged the valve guide so tight I had to dismantle the thing and drive the valves back out. Rebuilt a lot of them , but never had anything like this happen before. I usually force them in over the valve stems with a hammer handle , but, in a hurry, just tried to force them by tightening the cover bolts today .I'll never try that again. I should have investigated a little bit before forcing them. Now that I think about that missing o ring, makes me think someone might also have messed up those chamfers? How I don't know?
Everyone around here has quit using the dial indicator to adjust them and gone back to the old 4010-4020 method. Its a lot easier and quicker with fewer problems. Maybe you already do this: Bench test them by using a break away ISO coupler charged with air. You can fine tune adjust them that way.
Edited by msb 4/11/2008 22:33
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SCV adjustment
