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Unread 02-16-2017, 09:42 AM #1
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Cryo Treat the Timing Chain?
Lightbulb Cryo Treat the Timing Chain?

Hey all,

It's been a while since I've posted a thread. Now I'm back with a question. I have a 2007 Cooper S. It's on its 4th tensioner and 2nd chain. It's been 4 years since the last chain was put in and a year and a half since the last tensioner was put in. Well it's making noise again. I have all the parts to do a timing chain job, but I had a thought....

Has anyone ever Cryo treated a timing chain before installing? Cryo treated rotors work really well in terms of longevity. And I have a client that works in the drilling business that uses Cryo treated drills that last 3 times as long as non-cryo treated bits.

So, why not the chain since its apparent that it's a wear item on these cars?

To repeat myself, has anyone done this? What are some of your thoughts?

But not you Dave.0. I know most of your general thoughts...
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Unread 02-16-2017, 10:35 AM #2
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Cryo Treat the Timing Chain?
No info about Cryo on the chain....

So the next one will be your 3rd chain.... WOW.... how many miles on your 2007?

Was the sprocket replaced when you had the second chain installed?

Click the image to open in full size.
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Unread 02-16-2017, 11:10 AM #3
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Cryo Treat the Timing Chain?
I believe Cryo treating drills and rotors makes the harder so for the application they are used in that is good. You don't want a chance to be hard because this would make it brittle, that would be very bad! I would not do it. I am with Metalman I would change it all at the same time. Bottom sprocket, chain, guides, and tensioner.
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Unread 02-16-2017, 11:30 AM #4
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Cryo Treat the Timing Chain?
I would be concerned that the cryo treated chain would cause the non-cryo sprockets to wear faster. I agree with Metalman that being on your 3rd chain the sprockets may be worn & need replacement too. Every timing chain kit I have ever installed included sprockets too. (I've never done one on a MINI)
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Unread 02-16-2017, 12:55 PM #5
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Cryo Treat the Timing Chain?
Yes, as the chain wears it gets longer, which means the links are further apart, so eventually it's not centered on the points of the sprockets anymore, and starts wearing the ramps too, that same worn sprocket will now wear out the new chain more quickly as things no longer align properly.

As for cryo treating the chain, wrong application for this technology.....
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Unread 02-16-2017, 02:14 PM #6
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Quote:
Originally Posted by Minidave View Post
Yes, as the chain wears it gets longer, which means the links are further apart, so eventually it's not centered on the points of the sprockets anymore, and starts wearing the ramps too, that same worn sprocket will now wear out the new chain more quickly as things no longer align properly.

As for cryo treating the chain, wrong application for this technology.....
Exactly....
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Unread 02-16-2017, 08:44 PM #7
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Cryo Treat the Timing Chain?
Grizld asked this question at NAM and Nick Fry, the Detroit Tuned MINI Tech, responded that his shop sends the timing chains out for cryo treating to improve longevity.

https://www.northamericanmotoring.co...ing-chain.html
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Unread 02-16-2017, 09:19 PM #8
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Grizld......trade the R56.
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Unread 02-16-2017, 09:22 PM #9
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So, if someone is already doing it successfully and explained it to him already, wonder why he didn't share that?
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Unread 02-17-2017, 09:05 AM #10
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Quote:
Originally Posted by Minidave View Post
So, if someone is already doing it successfully and explained it to him already, wonder why he didn't share that?
I posted the threads at the same time for maximum exposer. I've only logged back in to MA just now
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