Checklist 5A

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Motor Runs Irregular or Misfires: Mechanical

Possible Causes

__ Air leak in inlet piping

__ Air leak through inlet valve guides

__ Broken cylinder head gasket

__ Sticky valve stems

__ Weak or broken valve springs

__ Carbon deposits in combustion chamber

__ Carbon under valve heads

__ No clearance between valve stem and lifters

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Updated: 27 Feb 2007