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05-10-2024, 08:47 AM | #1 |
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Brass caliper bushings
During a routine pad swap and brake bleed last night I noticed that there seemed to be a small but noticeable amount of movement between the fixed caliper bracket and the caliper itself at each wheel when a significant amount of pressure was applied to the brake. I am assuming the rubber caliper bushings have worn out after 81K miles and a half dozen HPDE weekends.
I see FCP offers a rear kit for the E92 M3 - anyone know if this is an OEM BMW part or aftermarket? I have a store credit with them so I'd like to buy there if possible. https://www.fcpeuro.com/products/bmw...-kit-885580038 Also, this seems to be the same kit - any reason to pay double elsewhere? I have a charge pipe from X-PH on my X5 and the quality was decent. https://x-ph.com/bmw-brass-pin-bushing-kit-885580038/
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05-10-2024, 10:24 AM | #2 |
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it's aftermarket.
just replaced the oem rubber part.
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05-10-2024, 11:27 AM | #3 |
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Using the FCP part or X-PH? How's the fitment?
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Last edited by nsogiba; 05-10-2024 at 11:35 AM.. |
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05-10-2024, 11:49 AM | #4 |
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didn't really use my OEM calipers longs before i went to a Alcon BBK, but it's something i would do 100% if i was on oem brakes.
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05-10-2024, 01:12 PM | #5 |
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I'm using the FCP part. no issues.
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Current '21 DG X5MC, '22 BG G82, '11 E90 M3
Recent Past '12 E92 M3 ZCP, '08 E93 M3, '18 F80 ZCP, '04 E46 M3 I think I have an M3 problem. |
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05-10-2024, 02:20 PM | #6 |
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Sweet! I have the rears on the way from FCP and fronts coming from Bimmerworld. Excited to throw them in before my HPDE in a few weeks at PittRace.
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05-10-2024, 11:01 PM | #7 |
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I have been using the bimmerworld ones for some time now they’re all the same. Haven’t had any issues with mine but I do check them after every oil change interval and just make sure they’re greased up. Make sure you use slide pin lube.
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05-14-2024, 03:02 PM | #8 | |
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I keep debating going brass...not sure I am good enough with HPDE to reap the benefits.
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05-14-2024, 03:37 PM | #9 |
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That is what I use to lube my slide pins. After a track day when I'm swapping back to street pads, I notice there isn't a lot, if any, grease left on the pins. The small remains of grease that is left toward the back, hex side isn't as slick either. Not sure it's a really a problem and everything seems to work fine, but it's just an observation.
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05-15-2024, 08:57 AM | #10 |
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I always used the tried and true green goop brake lube but recently switched over to the CERAMIC EXTREME because it's way less messy. No observable difference after a few events.
The tolerance between the pin and brass bushing is pretty tight so there should not be a lot of lube on the pins when removing. Also, when applying you really only need a film. |
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05-15-2024, 09:12 AM | #11 | |
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Current '21 DG X5MC, '22 BG G82, '11 E90 M3
Recent Past '12 E92 M3 ZCP, '08 E93 M3, '18 F80 ZCP, '04 E46 M3 I think I have an M3 problem. |
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05-15-2024, 02:57 PM | #12 | |
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I chose the Permatext stuff because of the super high-temperature rating and because I have always liked Permatex stuff in the past.
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05-17-2024, 06:44 AM | #13 |
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I installed the brass bushings at all 4 corners. Not thrilled with the quality of the Bimmerworld pins, the hex was really poorly broached and not very deep either. I was able to get it to torque up but can see it stripping if I'm not careful. Also had to grind the inside of the front calipers with a small flap wheel to make room for the c-clip to seat fully. Not sure why they don't just make the bushing a hair longer. The bushings don't seem to make a huge difference...we'll see how they feel on track.
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09-21-2024, 01:55 PM | #14 | |
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