Loose rocker/pushrod
#1
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Join Date: Aug 2013
Location: Utah
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Loose rocker/pushrod
I bought a built up Trans Am and with a few mods got 460rwhp. The other night the oil pressure dropped to 20 and started ticking like a machine gun. Pulled the valve covers off and everything was perfect except one rocker could be rocked by hand enough for the pushrod to fall off. I'm not finding exactly this problem in the forums. Please help!
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#8
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Pull the pushrod, look into lifter and see if plunger is up against the clip. If it is, then you may need to start dis-assembly. However, its hard to believe that a cam lobe would go bad quickly with no indications. I would suspect lifter roller if this happened suddenly. If the lifter won't come out easily from the top, don't force it. Remove cam and remove lifter from the bottom.