Do not use old staking points. (fir) It will be necessary to refinish valve seat inserts with a grinder (refer to following para). /. ... When refacing valves, remove all evidence of pitting and grooving. ... If bore in valve guide is worn oblong, or if valve head is warped relative to valve stem, the necessary parts must be replaced.
|Title||:||Direct and general support and depot maintenance manual|
|Author||:||United States. Dept. of the Army|