[Mk2] [Generic] Caliper Slider Pin: Rubber O-Ring

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malcster
Posts: 207
Joined: Thu Jan 08, 2009 12:49 pm

[Mk2] [Generic] Caliper Slider Pin: Rubber O-Ring

Post by malcster »

Hi guys,

My front caliper has begun to bind again, I took them it off and free'd it off again - looks like the lower slider pin was siezed, and the rubber o-ring type arrangment on the end of the slider was worn and twisted.

I think new o-rings are cheap from Toyota, but at the moment I have put it back together without the O-ring in place until I get some ordered up, basically because I couldn't get the slider pin in without it popping off.

Anyway - my question is:

What are they for?
Why are they only on the bottom slider pin?
Are they really necessary?
Will I have any problems running without one for a few days?

And finally, what grease is best for the slider pins?

I used Castrol LM grease last time, but I noticed that it had begun to dry up a little at the end. I know Copper grease is a no-no for moving parts like this, so maybe that black CV-Joint grease?

Thanks in advance!

Malc
1992 MR2 Turbo GT-S
1/4 Mile Best: 14.30s
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Lewis Jay
Posts: 2335
Joined: Wed May 18, 2005 11:37 am
Location: Cheshire

Re: [Mk2] [Generic] Caliper Slider Pin: Rubber O-Ring

Post by Lewis Jay »

Just leave them out mate. :thumleft:

I have ran mine without them for years.
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Rev5_GTS_Nick
Posts: 83
Joined: Thu Oct 12, 2006 6:26 pm
Location: London

Re: [Mk2] [Generic] Caliper Slider Pin: Rubber O-Ring

Post by Rev5_GTS_Nick »

Yeah mate leave em out mine were doing the same. Haven't had any problems.
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tommullin
Posts: 43
Joined: Thu Jan 07, 2010 3:01 pm

Re: [Mk2] [Generic] Caliper Slider Pin: Rubber O-Ring

Post by tommullin »

left mine off too. seem fine.
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tottacrolla
Posts: 172
Joined: Wed Jul 02, 2008 11:09 am

Re: [Mk2] [Generic] Caliper Slider Pin: Rubber O-Ring

Post by tottacrolla »

For future reference use the proper Toyota brake grease, anything else seems to 'swell' the rubber making the caliper stick
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g.lewarne
Posts: 1100
Joined: Mon Aug 16, 2010 11:38 pm
Location: Plymouth

Re: [Mk2] [Generic] Caliper Slider Pin: Rubber O-Ring

Post by g.lewarne »

i have always wondered about the grease to be used. I cant see why you cant use CV grease, since its relatively high temp and it does not cause damage or swelling to the rubber CV boots (and the stuff gets all over the inside of them)?

im willing to be educated on this if i am way off :)
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tottacrolla
Posts: 172
Joined: Wed Jul 02, 2008 11:09 am

Re: [Mk2] [Generic] Caliper Slider Pin: Rubber O-Ring

Post by tottacrolla »

g.lewarne wrote:i have always wondered about the grease to be used. I cant see why you cant use CV grease, since its relatively high temp and it does not cause damage or swelling to the rubber CV boots (and the stuff gets all over the inside of them)?

im willing to be educated on this if i am way off :)


It is probably ok to use but why would you want to ? it's maybe a bit cheaper but you know the Toyota stuff will work without issue.
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