4 piston brake caliper schematics.
04-13-09, 02:39 AM
#1
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4 piston brake caliper schematics.
the re-man'd calipers i purchased some time ago have issues (one has a possible leak at the seam and one is possibly clogged somehow). since theyre past their 1 year warranty i cant return them... i do have a friend that works on the inside, but i still have to talk to him about this. so in the mean time, i want to study the innards of one of these calipers.
something like an exploded diagram would be nice, but ill take anything.
something like an exploded diagram would be nice, but ill take anything.
04-13-09, 02:21 PM
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Factory Service Manual, page p-39.
its not...
arnt the 4 piston calipers sandwiched halfs?
04-13-09, 02:37 PM
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http://www.rotaryheads.com/PDF/2nd_g...ing_system.pdf
Braking system.pdf in the coloummn second from the top page 42?
My S5 calipers below
Braking system.pdf in the coloummn second from the top page 42?
My S5 calipers below
04-13-09, 03:04 PM
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04-13-09, 04:49 PM
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04-13-09, 04:58 PM
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04-13-09, 05:02 PM
#14
This seal is only accessible when the caliper halves are seperated...which would be necessary if the piston bore(s) needed to be honed or relined.
04-13-09, 05:15 PM
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There is an o-ring between the two halves of the caliper body that seals the passage that transfers fluid from the inside half to the outside half.
This seal is only accessible when the caliper halves are seperated...which would be necessary if the piston bore(s) needed to be honed or relined.
This seal is only accessible when the caliper halves are seperated...which would be necessary if the piston bore(s) needed to be honed or relined.
so it would be possible for a rebuilt caliper to leak at the seams if that O-ring got smooched or improperly installed.
this is sort of the problem im getting with my driver side. a small bead of fluid builds at the bottom of the caliper when i attempted to bleed it. there is also air getting into that side of the system from somewhere. all of the lines comming from the master cyl. are brand new.
04-13-09, 07:14 PM
#18
Yeah, that's too bad.
It's not terribly difficult to fix however.
Despite all the dire warnings against splitting the calipers, it's actually quite routinely done with race parts.
The Outlaw calipers I ran on the Z were the same design as our stockers and when switching to a thicker rotor all you did was split the caliper and add a spacer plate.
I did this twice with no ill effects...or leaks.
Just make sure you get proper o-rings.
Companies like AP, Wilwood and Outlaw have them available at a reasonable price, so resist the urge to go to Ace Hardware.
It's not terribly difficult to fix however.
Despite all the dire warnings against splitting the calipers, it's actually quite routinely done with race parts.
The Outlaw calipers I ran on the Z were the same design as our stockers and when switching to a thicker rotor all you did was split the caliper and add a spacer plate.
I did this twice with no ill effects...or leaks.
Just make sure you get proper o-rings.
Companies like AP, Wilwood and Outlaw have them available at a reasonable price, so resist the urge to go to Ace Hardware.
05-13-09, 02:00 PM
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I have been looking around for these o rings as well. As long as you use the right material and size you are good.
I found some but they come in 100 pack for 20 bucks so we will see. I didn't know it was going to be suck a pain until it was too late.
I think the material you need is EPDM from what I have found.
I found some but they come in 100 pack for 20 bucks so we will see. I didn't know it was going to be suck a pain until it was too late.
I think the material you need is EPDM from what I have found.
05-13-09, 02:03 PM
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