rear brake master cylinder
Moderators: trixynut, Mincehead, dicky, phuk72, Jak, Kevtrx849
- GQ89
- TRX-Enthusiast
- Posts: 182
- Joined: Sun Nov 22, 2009 2:09 pm
rear brake master cylinder
I pulled the rear brake master cylinder to pieces, cleaned it, back together and now the master cylinder will not pressurise. I tried to prime it , which did not help. Any suggestions?
I did not replace the seals while it was apart $175 for the kit, but all looked fine. I suspect not.
cheers mark
I did not replace the seals while it was apart $175 for the kit, but all looked fine. I suspect not.
cheers mark
89gq
Brisbane Australia
Brisbane Australia
- M.V.
- Site Sponsor
- Posts: 1509
- Joined: Sat Jul 04, 2009 3:23 am
- Location: Melbourne, Australia
Re: rear brake master cylinder
Patience. I haven't rebuilt the rear mc, but when I did the front MC & brake lines, it took a long time to get pressure back.GQ89 wrote:Any suggestions?
- Stankflapper
- TRX-Enthusiast
- Posts: 1260
- Joined: Wed Jun 22, 2011 8:34 am
- Location: Australia. Land of Cold beer & Bitchy women, and fast bikes!
Re: rear brake master cylinder
Take the caliper off, place like a tyre lever or something disc thickness inbetween the pads, then hold the caliper above the m/cyl ,,then pump and bleed, keeping the caliper always above the m/cyl this will bleed the air out much,much faster and you will have a pedal in no time. 
- phuk72
- Site Sponsor / Administrator
- Posts: 3522
- Joined: Thu Jan 06, 2005 1:47 pm
Re: rear brake master cylinder
Throw it in the bin - life is too short.GQ89 wrote:Any suggestions?
Have an ask on here or buy another from ebay for £10.
In fact, I've very porobably got one you can have for the cost of postage

- Stankflapper
- TRX-Enthusiast
- Posts: 1260
- Joined: Wed Jun 22, 2011 8:34 am
- Location: Australia. Land of Cold beer & Bitchy women, and fast bikes!
Re: rear brake master cylinder
Throw it in my bin... My vote is there is fk all wrong with it, just not bleed properly. 
- GQ89
- TRX-Enthusiast
- Posts: 182
- Joined: Sun Nov 22, 2009 2:09 pm
Re: rear brake master cylinder
thanks for the advice all, I will try to elevate and persevere. Rear brakes are over-rated anyway.
cheers
cheers
89gq
Brisbane Australia
Brisbane Australia
- GQ89
- TRX-Enthusiast
- Posts: 182
- Joined: Sun Nov 22, 2009 2:09 pm