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Old 06-04-2003, 02:42 PM
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sixto sixto is offline
smoke gets in your eyes
Join Date: Jun 2000
Location: SF Bay Area
Posts: 18,745
Could be time for a new timing chain and maybe guides and a tensioner as well.

Have you checked that it's a double row chain? Might have been standard equipment by 1983.

The plastic bits along the camshaft oil rails get brittle and disintegrate. Cheap insurance to replace them once in a while.

95 S420
91 300SE
87 300SDL
83 300SD
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