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 29-04-13, 23:15
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Brake caliper - grease or not?
There is a tech article in a recent Motor Cycle Monthly (free sheet distributed with magazines, for those not in the UK) on cleaning brake calipers. It gives the usual advice on taking pads out and cleaning the pistons, and then advises to give the pistons a light coat of copper grease before reassembling. I had always thought that the standard practice was to leave the pistons clean of anything that might attract dirt and damage the seals. Also, I was under the impression that copper grease would damage the rubber dust seals long-term. (The article advises proper rubber grease for the sliding pins.)
I thought I would throw this to the forum to see what you guys think, as I am a bit confused.
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XT660R (2006) XT600E (1994) Triumph Trident 750 (1992) My blog: http://goingfastgettingnowhere.blogspot.com/ |
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29-04-13, 23:56
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To grease, or not to grease? Me personally...
Pistons - no grease Pins - grease (copperslip) |
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30-04-13, 09:29
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That's me too, only with red rubber grease in the pins. Copper slip on the pad retaining pins, for sure.
Ok, you're putting new pads in. This means pushing the pistons right back into the caliper body, so why grease them? The pistons get lubed with brake fluid on assembly, but almost all of that is taken off when they are pushed back. I suppose there might be a case for protecting the exposed piston area when the pads are part-worn, but like I said this would attract dirt and stuff in an area where you want things as clean as possible. I'd love to know if there was a 'standard' practice here. Haynes doesn't mention grease at all, except on the pad backs, for what that's worth.
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XT660R (2006) XT600E (1994) Triumph Trident 750 (1992) My blog: http://goingfastgettingnowhere.blogspot.com/ |
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30-04-13, 09:51
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Quote:
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>-------< Never underestimate the power of stupid people in large groups. 
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01-05-13, 00:06
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Quote:
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Yamaha xt660x 2009 blue/gold mods= iridium plug, stage1+2, removed snorkel, blocked ais, akrapovric pipes, power commander pc3usb (pre made map), adjusted tps, dynojet 02 optimiser 30amp aux relay, smoked puig screen, oxford heated grips and brembo carbon ceramic pads, rfx 30mm bar raisers, puig long adjustable leavers, plus much more and a cheep �30 alarm which stopped it been stolen |
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01-05-13, 00:15
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Quote:
__________________
XT660R (2006) XT600E (1994) Triumph Trident 750 (1992) My blog: http://goingfastgettingnowhere.blogspot.com/ |
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