Rebuilding Brembo M40s - MVAgusta.net
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post #1 of 7 (permalink) Old 09-24-2017, 01:55 AM Thread Starter
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Rebuilding Brembo M40s

Hi guys,

I managed to get a set of Brembo M40 calipers from a 2012 F4 that was stripped for parts. The calipers are in good conditions, but since they have been laying around for some years I question the integrity of the seals.

Before I install the calipers on my 2012 F3, how difficult is it to take the calipers apart and replace the seals? (Ive done fork seals myself), I didn't notice anywhere in the manual the process to replace the seals and take apart the pistons...

Any special tools needed?

I plan to get this kit:
MV Agusta F4 998 R front brake caliper seal repair rebuild kit 2012 12 | eBay

Advice, comments

Thanks!
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post #2 of 7 (permalink) Old 09-24-2017, 05:40 AM
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The pistons in the caliper just pop right out with a little help from compressed air.
There is nothing that holds them in the body of the caliper except for friction with the seals.
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post #3 of 7 (permalink) Old 09-24-2017, 08:42 AM Thread Starter
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Quote:
Originally Posted by silentservice703 View Post
The pistons in the caliper just pop right out with a little help from compressed air.
There is nothing that holds them in the body of the caliper except for friction with the seals.
Thanks, is there any grease needed on the seals when putting it back together?
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post #4 of 7 (permalink) Old 09-24-2017, 04:14 PM
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PTsalas;
Save your money, the seals will be fine
Rinse the calipers out with fresh DOT 4
Mount and bleed




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post #5 of 7 (permalink) Old 09-25-2017, 06:28 AM
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There is a red grease made for brake systems, but I just use DOT4.

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post #6 of 7 (permalink) Old 09-25-2017, 10:45 AM Thread Starter
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Quote:
Originally Posted by theknurl View Post
PTsalas;
Save your money, the seals will be fine
Rinse the calipers out with fresh DOT 4
Mount and bleed




I had some fun blowing out the pistons with compressed air, the residual DOT 4 kept the original seals lubricated and all looks good.

Will clean up the pistons put back together. Thanks guys.
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post #7 of 7 (permalink) Old 09-26-2017, 04:31 AM
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Quote:
Originally Posted by PTsalas View Post
I had some fun blowing out the pistons with compressed air, the residual DOT 4 kept the original seals lubricated and all looks good.

Will clean up the pistons put back together. Thanks guys.
I probably should have cautioned you on just how far those pistons can pop!

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'07 Ducati Monster S4Rs, '07 Ducati Monster 695
2010 Harley Davidson Ultra-Classic Electra-glide CVO FLHTCUSEBLK
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