Cougar/XR7 V8-4.6L VIN W (1997)
Lifter / Lash Adjuster: Flow of Diagnosis
Before replacing a valve tappet for noisy operation, make sure the noise is not caused by:
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Improper valve-to-rocker arm clearance.
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loose rocker arm mounting nuts or studs.
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worn rocker arms.
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worn push rods.
