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Old 10-10-2008, 11:16 PM   #1
Growser
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Default When do you replace the timing chain?

I have Five S-Series Saturns ranging from 100,000 to 205,000 miles and have never replaced a timing chain. I'm great on my oil changes and don't have noise indicating I have a timing chain issue. After reading posts I'm just curious when I need to change the timing chain? Do I wait for signs/symptoms or is there a recommended mileage?

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Old 10-10-2008, 11:21 PM   #2
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Default Re: When do you replace the timing chain?

They are designed to last the life of the engine. You shouldn't have to replace them....but sometimes they do go wrong.

There are certain noises to look out for during idle which could indicate a loose/worn chain.

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Old 10-10-2008, 11:28 PM   #3
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Default Re: When do you replace the timing chain?

you replace the chain when it becomes stretched/worn to the point that the tensioner can no longer keep it tight. The way you check this is you blip the throttle when you head us under the hood and you ears are over at the passenger side. If you hear a sound just like a loose chain on a big chain saw, it time. It will make this sound when you drop the throttle, just like the saw. There is a bit of that even when they are new.

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Old 10-10-2008, 11:49 PM   #4
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Default Re: When do you replace the timing chain?

Great answers. Nice to know this is something I don't have to worry about until it's obvious.

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Old 10-11-2008, 03:59 PM   #5
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Default Re: When do you replace the timing chain?

Its one of the first things I replace when I pick up a used Saturn.

With proper maintenence, it should last the life of the car. But we all know how that goes.

So if you're the original owner, have kept up with all the oil changes and never let the oil get low. Shouldnt be an issue.

If you bought the car used, you dont know how the previous owner(s) treated it.

A co-workers son came over today with his 1994 SL2 with 150,000 miles on it and the chain it smacking agianst the camcover. I'm suprised it hasnt broke yet. Looks like I'll be making a few extra $$$$

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Old 10-11-2008, 05:11 PM   #6
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Default Re: When do you replace the timing chain?

Mine started getting a bit noisy at 250,000 miles because it was wearing through the guides.

Depends on if you like playing with your car and doing preventative maintenance for fun... or waiting till it is about to go

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Old 10-12-2008, 10:50 AM   #7
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Default Re: When do you replace the timing chain?

Quote:
Originally Posted by Low Saturn View Post
Its one of the first things I replace when I pick up a used Saturn.
Yeah but, for you, a used car inspection involves pulling the engine. Not that easy for the rest of us. I'll say don't mess with it until it gets noisy.

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