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Old 01-08-2002, 03:42 PM
5banger 5banger is offline
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Join Date: Jun 2000
Location: Tucson, Arizona, USA
Posts: 180
I would replace the chain and upper rails every 100k to 150k on an M117 V8 because the chain is so long. It will make a, "racka-ta-racka-ta" noise at startup. Also, the guides get brittle. If I am not mistaken, the M117 IS an interference engine and the valves WILL get bent on chain failure. I got mine changed for $600--cheap insurance! Hope this helps, Andrew Seidel.
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