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post #1 of 7 Old 12-16-2001, 12:24 PM Thread Starter
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Timing Belt Question

Hello all fellow Jeep fans. I have an 89 YJ I6 283 with 104K on it. Original timing belt. Was wondering what the span of the belt will usually give me. And if it goes while driving, will it ruin the block. Is it a zero clearence motor? Any comments would be appreicated. Thanks

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post #2 of 7 Old 12-16-2001, 04:17 PM
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Don't you mean timing chain?

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post #3 of 7 Old 12-17-2001, 04:36 PM Thread Starter
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Ok Timing Chain? Im not sure . Please confirm which it is. Would this be something that i will have to replace down the line. And if so, will a new chain cost a lot. And what mileage around should this be done? Any ideas?
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post #4 of 7 Old 12-17-2001, 04:57 PM
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Don't worry about your timing chain. It may last for 200K miles or longer or it may go at 100K. If it does start to go you will have a very distinct rattle at idle caused by slack in the chain. Then when RPMs increase less slack less noise.

You can also get a large socket and put it on your harmonic balancer (large bottom pulley) and see if there is in play left or right. No play means your chain is good and tight.

So, bottom line if it's not broke don't try and fix it.

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post #5 of 7 Old 12-17-2001, 06:45 PM Thread Starter
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Thanks for the advice
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post #6 of 7 Old 12-19-2001, 02:32 PM
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Whoa, so just to confirm here: the timing chain in his YJ won't destroy his engine when/if it breaks like it would in my car (and did in one of our cars)?

I have no experience with Jeep timing chains, btw, just wanting to confirm this is what you're saying.

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post #7 of 7 Old 12-19-2001, 02:52 PM
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I had an 88 Grand Am with the 2.5L that scrapped the timing GEARS about 3.5 hours away from home and it did no damage to the engine. All it took to fix was new gears, labor, and misc parts (after I finally got the car home) and the car still runs; I still see the car a couple times a week around town (183,000 miles when I sold it). Never had that experience with a Jeep (and I hope I never do).


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