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Old 09-02-10, 02:49 PM   #1
bergerandfries
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Lube to use on Shimano Index Shifter guts?

Yes, I did a search

How about a straw poll on what you would use to lube the index shifter guts on Shimano? I was thinking Park Tools green grease myself, but I wonder about attracting grit...
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Old 09-02-10, 03:09 PM   #2
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After cleaning them up removing dirt .. with like Kerosene, letting it evaporate,
Phil Tenacious oil is what I'd reach for.
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Old 09-02-10, 03:44 PM   #3
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I use Trifol oil.
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Old 09-02-10, 04:23 PM   #4
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Usually this is only necessary if the pawls are sticking. If it ain't broke, don't fix it.

The lubricant inside may gum up over time, which does not allow the pawls to engage completely. The standard trick is to drench it in WD-40 to break up the gunk and provide a light lube. After breaking up the gunk, a light oil can be used, though probably unnecessary. I wouldn't use grease as that may just lead to future gunking.
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Old 09-02-10, 04:51 PM   #5
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Nope, grease is the lube of choice for a fairly open part of this sort. Oil will run out too easily. A THIN SMEAR of a good water resistant grease is the lube of choice. The emphasis being on the "THIN SMEAR" only on the internal parts to prevent acting like a dirt magnet too badly. Grease won't harden or gunk up for years unless you ride in exceedingly dusty conditions. And if you do then you should be blowing the shifters out with a degreaser like brake cleaner and replacing the internal grease whenever you find the shifters getting lazy anyway. For any sort of mostly road use or non dusty use you're easily good for 5 years.
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Old 09-02-10, 05:38 PM   #6
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JiveTurkey, I just recently repaired a 600 brake/shifter and I'm presently trying my luck with a STX-RC trigger shifter. I looks like it isn't so much that grease was used for lube, but the amount of grease. It seems, I'm really not positive, that with the 600 a chunk of dried grease detached from somewhere and then interfered with the pawls. I'm not far enough into the trigger shifter to see the problem yet.

I use teflon grease, but as little as possible.

Brad
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Old 09-02-10, 07:35 PM   #7
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Quote:
Originally Posted by bergerandfries View Post
Yes, I did a search

How about a straw poll on what you would use to lube the index shifter guts on Shimano? I was thinking Park Tools green grease myself, but I wonder about attracting grit...
If I completely cleaned out the inside, I'd use Dumonde Tech Liquid Grease. If I was just doing a quick re-lube, I'd use Triflow, sparingly, hoping it slightly liquefies the existing grease. For some reason, the grease used in Shimano trigger shifters seems to turn to wax with age.
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Old 09-03-10, 06:33 AM   #8
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I'm more of a "find your own, cheaper solution" type of a guy. for more permanent lubrication, use medium or heavy oil. you all have something to lube your chain, usually this is medium viscosity. if it does not turn into gel-like substance, go with that. otherwise, I always use heavy oil, usually 75-90 car gearbox oil. cheaper and much bigger quantities.

because there no close tolerances, you could go with light machining oil, but it's not hydrophobic and it will eventually be contaminated by water. I also noticed that light oil penetrates too quickly and most of the time you'll have greasy hands while driving.

edit: if you really want to use grease but don't know how to put into tight spaces, stick it into a syringe, mix it with a couple of drops of acetone, squeeze and let it evaporate. don't use paint thinner, as they'll eat your plastics and they evaporate much longer.

Last edited by constant mesh; 09-03-10 at 06:46 AM.
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Old 09-03-10, 11:51 AM   #9
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Originally Posted by constant mesh View Post
edit: if you really want to use grease but don't know how to put into tight spaces, stick it into a syringe, mix it with a couple of drops of acetone, squeeze and let it evaporate. don't use paint thinner, as they'll eat your plastics and they evaporate much longer.
You should stick this tip in the "hints and tricks" sticky thread.
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Old 09-03-10, 05:23 PM   #10
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edit: if you really want to use grease but don't know how to put into tight spaces, stick it into a syringe, mix it with a couple of drops of acetone, squeeze and let it evaporate. don't use paint thinner, as they'll eat your plastics and they evaporate much longer.
Paint thinner (mineral spirits) is much less harmful to plastics than ACETONE which will desolve plastic in short order.
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