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Brake Pressure Control Valve Leak


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#1 dolli93

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Posted 28 November 2022 - 12:35 PM

Noticed a break leak on my mini, traced it back to the pressure control valve, seams as the rubber plug on the end is gone. Is it possible to replace it. If so where can i find it.
https://imgur.com/a/YSpHmvb

#2 Steve220

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Posted 28 November 2022 - 01:26 PM

If it's leaking there, then the whole unit is broken.



#3 Itsaminithing

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Posted 28 November 2022 - 05:31 PM

As above,

the condition of the rubber bung in the end is irrelevant, one or both of the piston seals have failed.... & no they are not replaceable.



#4 dolli93

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Posted 29 November 2022 - 12:45 AM

Just looked at a replacement, wow they are not cheap!! Thanks for your help.

#5 Itsaminithing

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Posted 29 November 2022 - 11:36 AM

Just looked at a replacement, wow they are not cheap!!

There is an alternative to buying a new FAM7821 regulator....

https://www.calverst...ias-adjustment/

I used this arrangement on my MPI with Metro 4 pot calipers up front & the rear brake pressure set slightly higher than standard -It suits my driving style & other people have driven my MPI & liked it (& i've never had a problem with brakes locking up).

 

 






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