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Mine is 06 117,000 miles, no chain noise.
 

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Could this be related by climate and environment?

I'd be curious to see where most of the timing chain issues come from. If they are all random or if their generally more north/south, dry wet... etc
 

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If it is not an affected batch of cam chains then just maybe it is an oil quality deal.
 

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If it is not an affected batch of cam chains then just maybe it is an oil quality deal.
I'm going with the idea that they got a batch of chains. Either some of them with rough edges, or some of them without.

Automakers tend to not source parts from one place....and when it comes down to it, they don't keep things seperate once they recieve them and the random sample passes a quick inspection (if that)
 

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I believe that somewhere someone posted up some sort of documantation produced by BW who manufactures the chains. My theory is to save on tooling cost, they ran the stamp dies too long and the chain links were not within tolerance for shape and edge roundness.

I think thats why it's been so spotty on what mileage - people have had them really quickly at 19k, others have had the noise occur at 75k...

I'm currently at 71k, and thankfully no issues.
 

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I believe that somewhere someone posted up some sort of documantation produced by BW who manufactures the chains. My theory is to save on tooling cost, they ran the stamp dies too long and the chain links were not within tolerance for shape and edge roundness.

I think thats why it's been so spotty on what mileage - people have had them really quickly at 19k, others have had the noise occur at 75k...

I'm currently at 71k, and thankfully no issues.
That's always the way it happens. When you try to save money it only ends up costing more.

Clint
 
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