 caliper grease, Is it really necessary? |
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| smrz914 |
 Aug 8 2005, 09:55 PM
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#1
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Soon to be brightening the life of the person behind you.  Group: Members Posts: 456 Joined: 21-April 03 From: Pleasant Hill, CA or Chico, CA Member No.: 596  |
I'm rebuilding my calipers and was wondering if the grease is really necessary. Is brake fluid enough?
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| rick 918-S |
Aug 8 2005, 10:52 PM
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#2
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Hey nice rack! -Celette Group: Members Posts: 20,459 Joined: 30-December 02 From: Now in Superior WI Member No.: 43 Region Association: Northstar Region 
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I don't know if it's nessesary... But it can't hurt. I use it for just that reason.
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| sean_v8_914 |
Aug 9 2005, 04:35 AM
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#3
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Chingon 601 Group: Members Posts: 4,011 Joined: 1-February 05 From: San Diego Member No.: 3,541 |
yup
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| RON S. |
Aug 9 2005, 04:56 AM
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#4
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9140430841, FINALLY RUNNING Group: Members Posts: 1,212 Joined: 22-May 03 From: WALTERBORO,S.C. Member No.: 724 Region Association: South East States |
Very defininately that little dab of grease is important.
If after you've popped out the pistons,you smear a thin layer of caliper grease around the sides of it before re-installing,over the long haul,the piston will remain lubed up so it won't seize in the bore. I've had a car or two in my lifetime w/a 100k miles or so on'em,and get in one one day to go to work,and after the first stop,have a brake piston not retract. Driving back to the house w/a glowing rotor is not fun.After disassembly,I've always found that the grease has slowly been used up over time.A little re-greasing,and I'm back in business for another 100k. The grease is important! Ron |
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| smrz914 |
Aug 9 2005, 11:22 AM
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#5
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Soon to be brightening the life of the person behind you. Group: Members Posts: 456 Joined: 21-April 03 From: Pleasant Hill, CA or Chico, CA Member No.: 596 |
well that settles it. The stuff they gave me looks thinner then I expected. It's more of fluid, not thick like a grease. Sound right?
Thanks |
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| davep |
Aug 9 2005, 03:25 PM
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#6
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914 Historian Group: Benefactors Posts: 5,143 Joined: 13-October 03 From: Burford, ON, N0E 1A0 Member No.: 1,244 Region Association: Canada  |
That sounds like the old VW B2 brake assembly paste. Kind of like runny blue jello. I use it all the time when assembling calipers and master cylinders. I don't think it is hydroscopic like brake fluid, so it can be kept around for years without going bad. It lubricates the seals and does not promote rusting of the metal parts. Brake fluid is probably okay if the parts are going to be put in service right away.
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