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MX, SX & Off-Road Discussions
Dirt Bike Mods & Maintenance
"O" ring or non "O" ring chain?
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[QUOTE="Jaybird, post: 982587, member: 22283"] It 's not so much keeping the "soft", but rather keeping the bearing surfaces lubricated. The rings see friction, as the roller chain constantly articulates. Without proper lubrication, the contact surfaces can become deformed, and become more prone to allowing contaminants in and pre-injected lube out. And using a product like WD-40, there is also solvent being carried into the sealed area. If it had anything in it that was good for the chains internal parts, that wouldn't be such a bad thing..but it doesn't. All it will help is to soften the internal lube, which could lead to the lube not lasting as long as intended. Or if a ring ever becomes slightly damages, the softened lube can come out faster. You are making fairly "matter of fact" type statements, Scot...but can you tell me what material the ring chain you have on now uses for it's sealing rings? There are scads of ring materials, and some are more prone to chemical attack than others. Can you state to me that a neoprene sealing ring won't see any deformation or swelling from being in contact with stoddard solvent? It quite possibly can. And when a ring of any material sees any swelling, it increases the pressure at the contact surface, and can help to degrade the seal faster. Yes, there are high tech rings that fight attack from just about any product that is used on a dirtbike including gasoline (highly fluorinated fluoroelastomer rings [Viton ETP] for one)...but we must always assume that these type rings are NOT being used, as all ring chain mfg's recommend only using ring rated lubricants on their ring chains. Using nothing at all is absolutely the worst thing to do. That will lead to the surfaces of the rings degrading fast. And can even create little channels in the rings surfaces that allow a perfect path for lube out and contaminants in. BTW...most all the time when a ring is damaged from swell...you need measuring equipment to detect it. It's not something you can just look at and assess. [/QUOTE]
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MX, SX & Off-Road Discussions
Dirt Bike Mods & Maintenance
"O" ring or non "O" ring chain?
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