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Old 06-22-2014, 05:04 PM   #1
Wrebit OP
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Question red powder sticking to the chain

Since a few days, there's a red powder sticking on the chain.
Looks like its coming of the countershaft sprocket.
Anyone knows what this is ?
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Old 06-22-2014, 05:10 PM   #2
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Sounds like rust to me.
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Old 06-22-2014, 05:12 PM   #3
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Sounds like rust to me.
No I doubt it ...
Its really red,...
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Old 06-22-2014, 05:18 PM   #4
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It's rust.

Pull the front sprocket off and lube the splines while you still can.
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Old 06-22-2014, 05:19 PM   #5
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What they said.
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Old 06-22-2014, 06:34 PM   #6
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Rust from the chain itself. Once the o rings start leaking/harden the inner pins rust. Not being an ass, but maybe more chain maintenance is required? Most folks think of chain maintenance as lubing, but in all reality we are cleaning the o rings to keep them pliable to maintain a seal for the sealed/lubricated pins. Chain wax is great for street use but in off road/dusty locations the wax seals the grit to the o rings, helping rush the demise of the chain. Internet lore says WD40 wrecks chains, I beg to differ and use it as part of my almost daily off road maintenance to remove the grit.

My advice is buy a new, quality chain, check both sprockets for condition and pay more attention to your chain.
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Old 06-22-2014, 07:52 PM   #7
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Rust from the chain itself.
Yup. What SOP said. I had exactly the same issue with the "red powder". Despite what I thought was "fairly regular" chain maintenance. I wasn't being diligent enough. (And I was using wax lube.) Several links finally seized. Replaced the OEM chain with a DID plus "very regular" maintenance, no red powder since.
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Old 06-22-2014, 08:19 PM   #8
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what they said

Yep, clean with white spirits when I can. Lube before/after every ride. I use renthal chain lube. Generous oiling, then whipe off excess. Chain's last very well if you look after them.

And YES, the main thing to lube is the o-rings.
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Old 06-23-2014, 12:58 PM   #9
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Last time I had that rest dust I was in SE Utah.
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Old 06-23-2014, 03:21 PM   #10
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Thats what my crappy oem chain looked like. I thought it was rust, too.
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Old 06-23-2014, 07:31 PM   #11
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Thats what my crappy oem chain looked like. I thought it was rust, too.
Yeah. I'd read a few posts on the crappy chain. Wasn't sure though... Did mention "the red dust" once to the dealer when I had it in for service. He didn't have an answer for it...

Anyway, new chain is sooo much smoother.
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Old 06-23-2014, 08:30 PM   #12
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It's only rust. You have to improve maintenance.

Have a look here : http://www.reginachain.it/uso_e_manu...how_to03.shtml

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Old 06-24-2014, 06:34 AM   #13
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Powdery red dust is the classic, definitive symptom of 'fretting corrosion'. See http://en.m.wikipedia.org/wiki/Fretting Note that this red dust is harder than steel, and VERY abrasive. Per the wiki article, it's technically not rust.

Reaver correctly notes the most common source, motion between sprocket and countershaft splines. In this particular case, based on the localized nature of the red dust shown in the photo, seems SOP may be correct in the diagnosis of some failed O-rings on the chain.

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Old 06-24-2014, 08:26 AM   #14
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Quote:
Originally Posted by GREWUPIN_D11 View Post
Powdery red dust is the classic, definitive symptom of 'fretting corrosion'. See http://en.m.wikipedia.org/wiki/Fretting Note that this red dust is harder than steel, and VERY abrasive. Per the wiki article, it's technically not rust.

Reaver correctly notes the most common source, motion between sprocket and countershaft splines. In this particular case, based on the localized nature of the red dust shown in the photo, seems SOP may be correct in the diagnosis of some failed O-rings on the chain.
Something else, it isn't salvageable. No amount of love will revive that chain. It will eventually fail and biding by Murphys law, when you need it most.
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Old 06-24-2014, 12:39 PM   #15
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After every off road adventure I use Keosene to get all the nasty shit out of there. Then on a regular basis so Im not putting lube on the black gum that builds up. I'll even carry it with me if I have along ways to travel after the off road adventure.
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