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Originally Posted by flecc
The technique with used chain is to wash it thoroughly with immersion in paraffin, changing it once to ensure all grit and dirt is removed, then the chain hung to drain and dry.
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Wouldn't you know it I picked up the paraffin/kero just the other day with this in mind and was going to use my ultrasonic cleaner after that process to get right into the nooks and crannies but alas my ultrasonic cleaner has died. I'll therefore do the whole job in the new year (when my replacement chain and repaired cleaner have arrived). I'm buying the chain to enable easier refitment of the "in use" chain so I dont have to take the whole cover off to re-thread it around the sprockets. I figure one day when it eventually does wear out then I'll have a spare ready and waiting.
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Afterwards, place the chain in a baking tray or similar and add a can of general purpose greas and gently heat it in a domestic oven until the grease is fully melted.
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I dont want to risk the possibility of the wrong grease breaking down under the heat. Heat can cause seperation of the oil from the soap part of some greases so I figure a specialist product is the safe option. Another benifit of the specialist product that I remember from my motorcycle days 20 years ago was that its not as sticky on the surface as ordinary grease so would tend not to retain dirt so much.
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It's not lack of lubrication that kills chains, it's road dust etc combining with whatever liquid is on the chain and forming effective grinding paste.
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Wouldn't that also include the fine metal particles that come off inside the chain links (even when lubricated with original lubricant)? If so, then I imagine my proposed thorough clean and relube of the original chain, the spare chain and proposed fully enclosed ST chaincase should see out the life of the bike. It's a pity the fully enclosed chaincase wasn't an option for Twists other than the Comfort ST.