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Old 01-23-2007, 04:42 AM   #4 (permalink)
Oldsguy
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Join Date: May 2004
Location: Lees Summit MO
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A tapping like a sewing machine would be top end, a louder but more muffled, heavier sound would be bottom end. You can always try Mystery Oil or some similar product but it may not help. You have probably excessively worn valve train components so nothing except replacement will correct the problem.
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Dan
'46 2 door
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