Expected life of a cam chain?

[Mekanix]

If you were in the process of rebuilding an engine with 38000 Kilometers, would you replace the timing chain? for $49 I think why not but I'd like some opinions. My tensioner isn't close to its extension limits and the chain isn't stretched beyond the spec in my service manual but I don't plan on tearing the engine down this much for a long while.

thanks

[Guest]

KeithKrause got 100K miles out of his before his rebuild. It was probably still good. They last a long time.

[Big T]

Cam chain guides, yes, as they are plastic and age

Cam chain, no

[tkent02]

It's a quality chain in a clean environment, bathed in oil.

The GS 550 that I rode well over 100,000 miles didn't need or get a new chain.

We rebuilt it due to leaks everywhere but the chain was fine.

[Guest]

Here's the difference between a 40k chain and brand new.

[rapidray]

If I split the cases I change the cam chain. PERIOD! 50 bucks is NOTHING compared to what it will cost if the chain breaks. But I'm just an engine builder & I know other people think differently. Ray.

[Mekanix]

Its settled then

Chain is on order.

Looking into replacement guides.

I do understand that they can last a long time but its the stretch that I'm concerned about.

Thanks for the reply's