Brake Master Cylinder - ZR-1 Net Registry Forums

TX '90 ZR1 · 11-22-2019

Hey Guys & Gals,
Anybody know where I can get the parts to rebuild my brake master cylinder or anyone who is rebuilding them?
I have an intermittent leak from the cylinder bore & want to get it repaired before it is more of a problem.
Do have another master cylinder I can install, but would like to get the original fixed to keep everything original.
As always, thanks for all the assistance!!

jss06c6 · 11-22-2019

Kenny, I went through this about 2 months ago. I wasn't able to locate a rebuild kit for our Brake MC. I'd be interested in what you find.. these are hard to find (PBR units.

Steve

Steve

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TX '90 ZR1 · 11-22-2019

Quote:

Originally Posted by jss06c6

Kenny, I went through this about 2 months ago. I wasn't able to locate a rebuild kit for our Brake MC. I'd be interested in what you find.. these are hard to find (PBR units.

Steve

Steve

Sent from my SM-G950U using ZR-1 Net Registry mobile app

Well Steve, that is not what I was wanting to hear!!
I've got a new master cylinder from Raybestos I can put on in the mean time, but the damn thing was built in Taiwan!! The pics in their listings showed it to have the correct PBR etc. castings, but when I opened it today I discovered it was probably just a stock photo.
Found a supplier that shows to have a rebuild kit. Will check with them next week to see if it is still available and let you know.
I need to get down to see you sometime. Even though I am in Texas, it's a hell of a long ways from Brownwood to Magnolia!!

Dave2 · 11-24-2019

On difficult to find or hard to get rebuild projects, I have had good results with these folks- https://whitepost.com/brake-sleeving...ding-services/

Hib Halverson · 11-24-2019

It looks like no one has master cylinder repair kits. I looked on RockAuto.com's site and there is no listing and when RockAuto doesn't have it, other than finding NOS somewhere, you're usually out of luck.

I did see that on RockAuto. com, they have a few reman cylinders w/o reservoirs, that are rebuilt by Cardone. I'd order one and see if it's a PBR casting. If it isn't you can send it back.

RockAuto also has several brands of new cylinders but I suspect all of them are made in places other than Australia.

As for Whitepost, it would be interesting to see if they have the parts to rebuild an early C4 master cylinder and if they can sleeve an aluminum cylinder.

lfalzarano · 11-24-2019

https://rover.ebay.com/rover/0/0/0?m...2F362722270328

Or

https://shop.advanceautoparts.com/p/...r+cylinder+kit

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TX '90 ZR1 · 11-24-2019

Thanks for the leads Guys.
Seems like nearly all of the photos in the listings show the "PBR" & "Made in Australia". In reality, the actual product shipped does not have this and are built in Taiwan.
Have a lead on a rebuild kit. Will let everyone know what I come up with.

jss06c6 · 11-26-2019

Quote:

Originally Posted by TX '90 ZR1

Well Steve, that is not what I was wanting to hear!!
I've got a new master cylinder from Raybestos I can put on in the mean time, but the damn thing was built in Taiwan!! The pics in their listings showed it to have the correct PBR etc. castings, but when I opened it today I discovered it was probably just a stock photo.
Found a supplier that shows to have a rebuild kit. Will check with them next week to see if it is still available and let you know.
I need to get down to see you sometime. Even though I am in Texas, it's a hell of a long ways from Brownwood to Magnolia!!

Would love to see you when you get time!

I've got two master cylinders I'd like to rebuild. Watching for your lead on parts!

Steve

Sent from my SM-G950U using ZR-1 Net Registry mobile app

TX '90 ZR1 · 11-26-2019

Quote:

Originally Posted by jss06c6

Would love to see you when you get time!

I've got two master cylinders I'd like to rebuild. Watching for your lead on parts!

Steve

Sent from my SM-G950U using ZR-1 Net Registry mobile app

Steve, I'm chasing it.
Sent you a PM.

JG95ZR1 · 11-26-2019

Had the same problem. Order all the possible master cylinder available on the .net and none were rebuilt with PBR core. I settled for a low mileage used one from car-parts.com flushed it and installed DRM spring.

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11-22-2019	#1
TX '90 ZR1 Join Date: Oct 2017 Location: TX Posts: 2,009	Brake Master Cylinder Hey Guys & Gals, Anybody know where I can get the parts to rebuild my brake master cylinder or anyone who is rebuilding them? I have an intermittent leak from the cylinder bore & want to get it repaired before it is more of a problem. Do have another master cylinder I can install, but would like to get the original fixed to keep everything original. As always, thanks for all the assistance!! __________________ Kenny 1990 #442

11-22-2019	#2
jss06c6 Join Date: Aug 2015 Location: Magnolia, Texas Posts: 884	Re: Brake Master Cylinder Kenny, I went through this about 2 months ago. I wasn't able to locate a rebuild kit for our Brake MC. I'd be interested in what you find.. these are hard to find (PBR units. Steve Steve Sent from my SM-G950U using ZR-1 Net Registry mobile app

11-24-2019	#4
Dave2 Join Date: Apr 2013 Location: Connecticut Posts: 10	Re: Brake Master Cylinder On difficult to find or hard to get rebuild projects, I have had good results with these folks- https://whitepost.com/brake-sleeving...ding-services/

11-24-2019	#5
Hib Halverson Join Date: Jun 2005 Location: CenCoast California Posts: 899	Re: Brake Master Cylinder It looks like no one has master cylinder repair kits. I looked on RockAuto.com's site and there is no listing and when RockAuto doesn't have it, other than finding NOS somewhere, you're usually out of luck. I did see that on RockAuto. com, they have a few reman cylinders w/o reservoirs, that are rebuilt by Cardone. I'd order one and see if it's a PBR casting. If it isn't you can send it back. RockAuto also has several brands of new cylinders but I suspect all of them are made in places other than Australia. As for Whitepost, it would be interesting to see if they have the parts to rebuild an early C4 master cylinder and if they can sleeve an aluminum cylinder. __________________ Hib Halverson Technical Writer former owner 95 VIN 0140 current owner 19 VIN 1878

11-24-2019	#6
lfalzarano Join Date: Feb 2011 Location: Clayton, North Carolina Posts: 1,133	Brake Master Cylinder https://rover.ebay.com/rover/0/0/0?m...2F362722270328 Or https://shop.advanceautoparts.com/p/...r+cylinder+kit Sent from my iPhone using ZR-1 Net Registry __________________ Lou[COLOR="Red"][B][SIZE="4"][/SIZE][/B][/COLOR] Last edited by lfalzarano; 11-24-2019 at 03:45 PM.

11-24-2019	#7
TX '90 ZR1 Join Date: Oct 2017 Location: TX Posts: 2,009	Re: Brake Master Cylinder Thanks for the leads Guys. Seems like nearly all of the photos in the listings show the "PBR" & "Made in Australia". In reality, the actual product shipped does not have this and are built in Taiwan. Have a lead on a rebuild kit. Will let everyone know what I come up with. __________________ Kenny 1990 #442

11-26-2019	#10
JG95ZR1 Join Date: Aug 2017 Location: Queens, NY Posts: 163	Re: Brake Master Cylinder Had the same problem. Order all the possible master cylinder available on the .net and none were rebuilt with PBR core. I settled for a low mileage used one from car-parts.com flushed it and installed DRM spring. Sent from my iPhone using ZR-1 Net Registry