Doing A Valve Job

[INSIDIOUS '86]

Originally Posted by Rufton

I would dissect "collapsed" lifter to determine what is going on. I would prefer using repaired/cleaned "collapsed" lifter instead of new lifter on used cam.

I don't follow the connection between collapsed lifter and bent PR.

True. The callapsed lifter will creat excessive lash and this can really beat the valve train. If it was bad the pushrod can possibly just callapse and bend especially at higher rpm. I've never heard or seen this happen but it's possible
If the insides just got stuck then a good dissecting and cleaning like I suggested will do fine
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