Brake master cylinder - could it occasionally cause sticky rear brakes?

Duane Black · May 27, 2019

I put the stock hoses back on the rear as a few suggested the stainless coild cause issues back there, at least j and m would. I had the stock brakes get a little hot after going back to street brakes. I always have the master cylinder cap off when I back brakes off, should I possibly have the bleeder open too? It seems it gets stuck on the first drive and after that I'm fine. I don't recall this issue until this year. Could it be related to the ABS module or the master cylinder?

TMSBOSS · May 27, 2019

I wouldn't think so. I would look at possible binding of the pads or piston and pads. If the issue goes away after a short time, I would not expect the problem to be hydraulic.
Are you running stock for your year or the larger GT-500 rears?

Duane Black · May 27, 2019

Stock for my yea . The baby rotors!

TMSBOSS · May 27, 2019

K. I have had some issues with the larger upgrade.

Mechanical parts are good. Caliper slides freely?

Duane Black · May 27, 2019

I'll double check and re-lube everything.

Norm Peterson · May 28, 2019

Duane Black said:
I put the stock hoses back on the rear as a few suggested the stainless coild cause issues back there, at least j and m would. I had the stock brakes get a little hot after going back to street brakes. I always have the master cylinder cap off when I back brakes off, should I possibly have the bleeder open too? It seems it gets stuck on the first drive and after that I'm fine. I don't recall this issue until this year. Could it be related to the ABS module or the master cylinder?

Any car with ABS should probably have the fluid pushed out the bleed fitting rather than pushed back toward/into the ABS HCU.

Norm

JAJ · May 28, 2019

Duane Black said:
I put the stock hoses back on the rear as a few suggested the stainless coild cause issues back there, at least j and m would. I had the stock brakes get a little hot after going back to street brakes. I always have the master cylinder cap off when I back brakes off, should I possibly have the bleeder open too? It seems it gets stuck on the first drive and after that I'm fine. I don't recall this issue until this year. Could it be related to the ABS module or the master cylinder?

If there was a burr on the piston from interference by the aftermarket banjo bolts, then the piston might stick a bit after it's been wound all the way back. This is the best theory I can come up with, but it's just a theory.

I'd be very surprised if it has anything to do with the hydraulic circuits - ABS or master cylinder. I think you'd have more problems than this if that's what was happening.

Duane Black · Jun 3, 2019

I may have discovered part of my problem. Usually the pads I bought didn't have the pin on the backing plate. I noticed when I got my new racing pads that 2 had a pin, 2 didn't. Realized I may have been backing the piston back and it just ramming the pin. It likely burned the brakes down until it got everything down smooth

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Brake master cylinder - could it occasionally cause sticky rear brakes?

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Duane Black

Curbs go brrrppp

TMSBOSS

Spending my pension on car parts and track fees.

Duane Black

Curbs go brrrppp

TMSBOSS

Spending my pension on car parts and track fees.

Duane Black

Curbs go brrrppp

Norm Peterson

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JAJ

Duane Black

Curbs go brrrppp

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