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Old 02-01-2021, 09:18 AM
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cycleguy55 cycleguy55 is offline
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Location: White City, SK
Cobra Make, Engine: West Coast, 460 CID
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Quote:
Originally Posted by MaSnaka View Post
Sledge,
The screws have an interference fit...Someone on the FE forum mentioned they are peened (not sure what that means). I assume so they don't vibrate loose and get sucked in and processed through the combustion magic. Only loosen maybe 1/4 turn, set idle adjustment as low as it will go. Tighten and readjust the idle position screw. I was getting a weird hang up with the engine running, but with the engine off no hang up. Maybe vacuum was pulling the butterfly plates closed where the friction occurred. I hope it helps you.

John
'Peened' in this context means the protruding threaded end of the machine screw is hammered into a bit of a mushroom shape against the throttle shaft so it physically prevents the screw from loosening.
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