200k timing chain? - GM Forum - Buick, Cadillac, Chev, Olds, GMC & Pontiac chat


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Old 02-09-2005, 12:22 PM   #1
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Default 200k timing chain?

Do you think tha the chain in my car has had to have been replaced before? It'* got 204k miles on it, but it runs like a top like they all do. There'* no hesitation and no rattles or smacking sounds coming from under the hood. I've looked through all reciepts that i got with it (a whole file full) and couldn't find any connection to it. I'm assuming it has been done at least once i didn't think these things could go that long. And i drive my car hard. So what'* everybody think?
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Old 02-09-2005, 03:26 PM   #2
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I have heard of these chains lasting in excess of 200k miles.
Don't forget these engines have roller lifters which greatly reduces the stress on the chain.
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Old 02-09-2005, 03:46 PM   #3
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I don't know if his '87 has the rollers.. the LN3 definitely has 'em, though.


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Old 02-09-2005, 05:01 PM   #4
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ethier way replace it because its probbaly stock
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Old 02-09-2005, 05:08 PM   #5
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Yeah, I do have to agree. At this point, that timing chain has exceeded it'* life [if it'* stock], and is probably just begging to fail. While you are down there, replace your cam and crank sensor.. harmonic balancer, and make sure your cam magnets are all there. You will thank me later.. because that **** will fail 10 miles after you replace the timing chain, guaranteed.


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Old 02-09-2005, 05:18 PM   #6
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the harmonic balancer has rubber in it and as time goes on it dry rot'* and starts to fall apart there for your crank bearing will have alot more stress on them because the rotating assembly is out of balance
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Old 02-09-2005, 08:38 PM   #7
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My 1990 has 275K and original chain. Borrowed time?
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Old 02-09-2005, 10:17 PM   #8
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With our cars.. every mile is borrowed time. Especially since I can pick up an 87-91 for 1-2k at most.


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Old 02-09-2005, 10:37 PM   #9
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100K is the factory service interval.
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Old 02-09-2005, 10:50 PM   #10
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I know it'* off topic. I get hasseled at work 'cos my car'* worth 1K and my stereo about 3K.

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