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Steven
Dodge Dakota
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3/13/2011
18:45:48
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 Subject: Timing Chain
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Message:
I have a 1993 Dodge Dakota v6 3.9L 2wd with 156,000 miles.
When should the timing chain be replaced? I've looked and I can't find it and I don't have the owners manual.
And I've heard rummors that replacing it actually increases mpg. Not by a lot but a good amount. Is this true or just a rumor?
And lastly, while changing the chain, should anything else be replace while doing the chain. I know the water pump is popular, but is there anything else that should be replace?
Thanks,
Steven
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Bob Lincoln
Dodge Dakota
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3/14/2011
08:26:30
| RE: Timing Chain
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If yours is original, I'd change it. By 100k miles the original design has worn and stretched enough to affect performance in most of these. The replacement one is a redesign to improve the oil feed. A new one will restore proper valve timing and you might not notice any change in gas mileage, very slight performance improvement.
When I had mine done, I also had the water pump and bypass hose replaced, while it was apart. And my harmonic dampener had a bad wobble (1/4"), so they replaced that, also.
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Steven
Dodge Dakota
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3/14/2011
10:39:19
| RE: Timing Chain
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Thanks, I'll get to it asap. But I was looking around online and I can't find a harmonic dampener. Are you sure that's the right part?
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retired
Dodge Dakota
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3/14/2011
11:47:43
| RE: Timing Chain
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Steven, they sell a shim that fits inside your pully that mounts back on the crankshaft, I had to do it to mine work great just follow directions to re-install. JD
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