1992 Ford Explorer Top End Clicking Noise Mechanic Told Bad Rocker Assembly

1992 FORD EXPLORER
162,000 MILES
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I have a top end clicking noise.A mechanic told me it was a bad rocker assembly.I have one valve cover off (driver side).How do I ckeck to see if the rocker assem.is bad.Or could it be a sticky lifter.I know the old way was to start engine and hold each tappet one at a time to see if noise quieted.Will that method work here on my 92 explorer,4.0 pushrod engine.Not running and cold,the assembly is tite.No play at all.
Nov 9, 2012 at 1:02 PM
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CARADIODOC
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Inspect the pushrods where they pivot on the rocker arms for grooves. That's a real common cause of clicking on that engine. The fix is new pushrods and rocker arms.
Nov 9, 2012 at 2:51 PM
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