brembo front master cyclinder problem

kawasakiinit · Mar 21, 2009

ok fella's i have had my levers off today for maintainance etc and when i came to put the front brake lever back on i struggled with the rubber seal which slides over the push rod , i have nicked it and now need a new one .

do i have to buy a new master cylinder or can i get a new seal ??? and how the hell do you get the thing over the push rod ??

total head mashed been tryin for 2 hours and now its split :angry

bike is 2005 rsvr

danf1234 · Mar 21, 2009

Its a common problem, and discussed i nsome depth on AF1. It is only a dust boot, and not offering any real protection.

I was told to smear with grease and it will be fine. Mine has been like that for 2 years now..

Or the alternative is buy a full replacment, but it aint cheap. Brembo don't sell the spares.

kawasakiinit · Mar 21, 2009

how do i get the push rod back in it as it has only got a hole in the side of it so will still slide over if i can get it on

kawasakiinit · Mar 22, 2009

danf1234 said:
Its a common problem, and discussed i nsome depth on AF1. It is only a dust boot, and not offering any real protection.

I was told to smear with grease and it will be fine. Mine has been like that for 2 years now..

Or the alternative is buy a full replacment, but it aint cheap. Brembo don't sell the spares.

thanks mate ,dont they even do a service kit for the master cylinder then ?

SPOOKY · Mar 22, 2009

kawasakiinit, I had the same problem when fitting pazzo levers. Brembo will not supply any sort of rebuild kit for the cylinder even though it's just the dust seal that you need :jack. I was told that the whole unit could be serviced if sent away but after searching came to a deadend :dunno. I asked Lord spoonz and he confirmed that a new master cylinder, or second hand, was the only way to get the dust seal. Got one off fleabay in the end. I found the best way to get the pushrod back in was to grease the rod like danf1234 said, I used silicone grease as it wont rot the rubber, and with a thin long nose set of pliers carefully hold the shoulder of the seal just behind where the pushrod enters so that the lip on the seal doesn't get pushed in when you push the rod in. Hope this is of help.
SPOOKY :ghostface

kawasakiinit · Mar 22, 2009

SPOOKY said:
kawasakiinit, I had the same problem when fitting pazzo levers. Brembo will not supply any sort of rebuild kit for the cylinder even though it's just the dust seal that you need :jack. I was told that the whole unit could be serviced if sent away but after searching came to a deadend :dunno. I asked Lord spoonz and he confirmed that a new master cylinder, or second hand, was the only way to get the dust seal. Got one off fleabay in the end. I found the best way to get the pushrod back in was to grease the rod like danf1234 said, I used silicone grease as it wont rot the rubber, and with a thin long nose set of pliers carefully hold the shoulder of the seal just behind where the pushrod enters so that the lip on the seal doesn't get pushed in when you push the rod in. Hope this is of help.
SPOOKY :ghostface

thanks spooky just been out to garage and got it back in, the hole in the seal is in tact,the nick i did is on the side so once the pushrod was in place i use some glue out of a cycle puncher repair kit and it seems to be holding for now.
i will monitor it and see how much it gets on my nerves ,i just know am gonna get a new one sooner or later .i like things to be just right :thumbup

do you have to strip the master cylinder down to replace the seal or does it pull out from the front ?

thanks for you help...:eatcorn

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