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Old 04-17-2010, 01:34 PM   #1
sixbangr
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timing chain worn out?

can't adjust the carb right so I checked the timing. It is at about 25btdc. It won't idle any other way. I assume the chain needs replacing. Have no idea the milage, just got it 2 weeks ago. Engine is a 250 out of an Old's.
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Old 04-17-2010, 03:16 PM   #2
sixbangr
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Re: timing chain worn out?

I checked, no chain, you knew that. The eng. has a March,15, 1976 build date. It has the integral head. Compression is 150 on all 6. Maybe I should drop on the 2 barrel from Langdon. It has the HEI already.
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Old 04-17-2010, 08:41 PM   #3
Tx Firefighter
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Re: timing chain worn out?

Sounds to me like the outer ring on the harmonic balancer has slipped. It happened to two separate 250 engine I have owned. A new one can be bought at any local parts store through the Pioneer brand line.
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