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Anybody Rebuild Brembo 19x18 masters?

Wicked4Racin

MOJO Motorsports
Joined
Sep 4, 2004
Location
San Jose
Moto(s)
Suzuki ...and a few others for different days
Name
Josh
I acquired one and its seeping though the front boot and some from where the plastic nipple comes out that goes to the resv. Looking to see if any of you have rebuilt them before. Rode it today up my street and it was functioning great and then it locked up the front and about spit me off. I guess its an issue with the double banjo bolt but I didnt have any issues with my other one. Any help will be great as I cant find any useful info online
:thumbup
 
Well, if you find someone who'll sell you an internal rebuild kit, please let us all know.

Dan Kyle told me only Brembo itself does the servicing. Here's the info he gave me:

TAW
West Coast Facility

Toll Free: 888-235-0910
Direct: 707-343-1534
Fax: 707-935-0942
Email:sales@tawperformance.com

TAW Performance
21881 8th St. East
Sonoma, CA 95476
 
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dang, I guess I could ship it to them. the crash kit doesn't really replace any seals per say and it doesn't have any damage from a crash or anything. any of you have issues with them locking up? I've read that they are extremely sensitive to double banjo bolts so going to go buy another one. I've got 30 or so singles and 10 doubles but none are the correct brembo pitch. go figure!
 
dang, I guess I could ship it to them. the crash kit doesn't really replace any seals per say and it doesn't have any damage from a crash or anything. any of you have issues with them locking up? I've read that they are extremely sensitive to double banjo bolts so going to go buy another one. I've got 30 or so singles and 10 doubles but none are the correct brembo pitch. go figure!

I'm really confused as to what you're describing. What locks up? The piston?

Singles/double banjos are all the same. Shouldn't be any difference unless your thread length is too long and it bottoms out.

Threads are all 10mmX1.0 btw.
 
dang, I guess I could ship it to them. the crash kit doesn't really replace any seals per say and it doesn't have any damage from a crash or anything. any of you have issues with them locking up? I've read that they are extremely sensitive to double banjo bolts so going to go buy another one. I've got 30 or so singles and 10 doubles but none are the correct brembo pitch. go figure!

One of the reasons they lock up is a crash breaks the connection between the actuating plunger and the lever ( which is replaced with the rebuild crash kit). Then the two pieces catch on each other.
 
I rode up my street yesterday and the brakes were doing great as I broke hard 4 or so times, then out of the blue the front brakes locked up without me touching the lever. I had to open the bleed screw on the master just to get it back home. I've read that people have problems with the holes in the banjo lining up or something. its correct thread and goes on normal so its a first for me. the master doesn't show any damage from a crash and is pretty normal but maybe I should invest in a crash kit and go from there. just didn't want to be throwing $$ at something that needs to be fully rebuilt.
thanks for the replies. any of you have a crash kit?
 
It's possible the part is broken. Pull the rubber and look.
 
Brembos have a different thread pitch from the Nissan, etc. commonly used by the Japenese, so you need that thread pitch (both are 10mm if I remember correctly). The lock up in use is usually caused by a blocked compensation port within the master cylinder. That is a small hole in the piston that allows fluid to return to the master cylinder after use, and to compensate for heat expansion. If it's blocked, pressure builds with each pull, and also as the fluid warms up. Rebuild time.
 
One of the reasons they lock up is a crash breaks the connection between the actuating plunger and the lever ( which is replaced with the rebuild crash kit). Then the two pieces catch on each other.

Actually, the top hat usually breaks. (Probably what you meant.)

I rode up my street yesterday and the brakes were doing great as I broke hard 4 or so times, then out of the blue the front brakes locked up without me touching the lever. I had to open the bleed screw on the master just to get it back home. I've read that people have problems with the holes in the banjo lining up or something. its correct thread and goes on normal so its a first for me. the master doesn't show any damage from a crash and is pretty normal but maybe I should invest in a crash kit and go from there. just didn't want to be throwing $$ at something that needs to be fully rebuilt.
thanks for the replies. any of you have a crash kit?

http://www.power-barn.com/servlet/the-1734/Brembo-Radila-Master-Cylinder/Detail

It's possible the part is broken. Pull the rubber and look.

Or, just push (away from bar) on the handle. If it's broken, the push rod will come out of the rubber boot.

Brembos have a different thread pitch from the Nissan, etc. commonly used by the Japenese, so you need that thread pitch (both are 10mm if I remember correctly). The lock up in use is usually caused by a blocked compensation port within the master cylinder. That is a small hole in the piston that allows fluid to return to the master cylinder after use, and to compensate for heat expansion. If it's blocked, pressure builds with each pull, and also as the fluid warms up. Rebuild time.

This can also occur if someone has monkeyed with the spanner screw which surrounds the rubber boot, as it sets the piston depth.

Whatever it is, I wouldn't ride it, and a crash kit won't help.

The lockup could be a caliper stuck piston heating up the brake fluid, but I really doubt it. I'd send it out to have it rebuilt properly.
 
sounds like I'm pulling it apart today. I'll post pics. also, when I was putting the master hose on , the plastic elbow that goes from the resv to the master came out. it wasn't bent so I stuck it back in. it looks like its in all the way but there were like cross cuts on the plastic nipple, you think I have it in wrong or its not seated in properly? going to put the stock master on so I can go get the recall done and get a new one, by then i hope I can find a crash kit because the r6 brembo doesn't have nearly the same plush feel the the 19!
 
I switched from the r6 brembo which worked great to the 19 so not thinking its my calipers either. I'll post pics when I tear into it
 
Dood, I just gave you a link for crash kits. And they ain't gonna solve your problem.

And why would you tear into if you can't get replacement parts?

Quoting Alan: You don't know what you're doing.
 
lol, come to my shop and tell me that i dont know what Im doing. I never said the crash kit was going to fix it. I will admit that this is the only brembo iv ever had issues with. the purpose of my post was to see 1 if others had similar problems with the weeping and 2 see if anybody had issues with the banjo because i have read over 10 posts on other forums that have. before you get all gung-ho and call me out for some Newb, try looking at the post and using your overinflated head to understand what im really asking.
 
I'm really confused as to what you're describing. What locks up? The piston?

Singles/double banjos are all the same. Shouldn't be any difference unless your thread length is too long and it bottoms out.

Threads are all 10mmX1.0 btw.

any no single and double banjos are NOT the same, one is for a single brake line and the other is for 2. a double has more holes and depending on the thickness of the brake line fitting, they can make fitment different for each. Of course thread pitch is important but im defiantly mature enough to be running the correct pitch for the brembo master. that was like step 1 before step 2
 
Quoting Alan: You don't know what you're doing.

...and this coming from the man that wanted to run 2 single banjo bolts because he was too cheep to go find a $3 double banjo... Sounds like you know what the hell your talking about aswell! :party
 
Look Josh, you're descriptions are vague and all over the place (e.g., weepy reservoir connector, banjo not fitting, brake lock-up, crash kit.)

It's difficult to receive help when you're not communicating clearly. Accordingly, you're receiving shotgun solutions.

And, no offense, but if you can't even sort out a simple compression fitting (banjo), I wouldn't put a whole lot of stock of you performing a blind rebuild.

Have you done one before?

It's kind of a critical item which can cause catastrophic failure.
 
any no single and double banjos are NOT the same, one is for a single brake line and the other is for 2. a double has more holes and depending on the thickness of the brake line fitting, they can make fitment different for each. Of course thread pitch is important but im defiantly mature enough to be running the correct pitch for the brembo master. that was like step 1 before step 2

Theads and fitment are the same. The only difference is 2 or 3 crush washers.

...and this coming from the man that wanted to run 2 single banjo bolts because he was too cheep to go find a $3 double banjo... Sounds like you know what the hell your talking about aswell! :party

What a little snoop.:laughing

Guess what? It works fine.

Can you give me an engineering explanation why it is not suitable?
 
I rode up my street yesterday and the brakes were doing great as I broke hard 4 or so times, then out of the blue the front brakes locked up without me touching the lever.

If that happened to me I'd be rich because I'd shit a gold brick. :laughing
 
Look Josh, you're descriptions are vague and all over the place (e.g., weepy reservoir connector, banjo not fitting, brake lock-up, crash kit.)

It's difficult to receive help when you're not communicating clearly. Accordingly, you're receiving shotgun solutions.

And, no offense, but if you can't even sort out a simple compression fitting (banjo), I wouldn't put a whole lot of stock of you performing a blind rebuild.

Have you done one before?

It's kind of a critical item which can cause catastrophic failure.
I never said the banjo didnt fit. and yes I have the correct number of crush washers, not my first rodeo and deff not my last. Sorry if the post seemed vague to you. sounds like I was asking if anybody had issues with their masters weeping and if they experienced the issue iv been reading about with the banjo. if it wasnt correct english and you couldnt understand it maybe say so before you start to take things out of it and play me off as some kind of newb. Im sure if you have seen my shop and know how many bikes I work on a regular basis you would understand that Im not. Yes, I didnt include the number of crush washers and the pitch of the bolt but then again I didnt ask about pitch or the number of washers and didnt say fluid was coming out of the lines. in fact I didnt say fluid was comming out of anything except weeping (slight residue since you think weeping is some non-english term) out of the front under the boot and on the side under the plastic resv fitting. And sorry for trying to do things the correct way, I guess thats just how I choose to do things. But you want to slam me for my grammar skills and poke fun of me being some sort of newb all while your bike has 2 banjos and not 1 because you couldnt get ahold of the correct part, call me a lurk but the facts are facts and before I take advice from anybody I need to see if they are actually competent of giving so, in your case Im not sure im following why you decided to skimp on a $3 banjo and are thinking that I dont know what the hell Im talking about or my mechanical capabilities..
 
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