420SEL-assessing timing interference damage (was "fuel dist gets fuel, but...")

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420SEL-assessing timing interference damage (was "fuel dist gets fuel, but...")

01-28-2007, 10:17 AM

BrettS

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Join Date: Oct 2006

Location: Fairfield, PA

Posts: 91

420SEL-assessing timing interference damage (was "fuel dist gets fuel, but...")

After having experienced timing-chain guide disintegration, Is it possible, short of pulling the heads, to determine if valve & piston interference (and any resultant damage) has occurred? (I'm trying to decide if replacing the chain and guides is worth the time and effort.)

The engine still cranks (slowly and reluctantly). This is with a '91 420SEL with 130,000 miles on it.

Thanks.
-Brett

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