Go back to home

Big brakes keep locking up

Author
chausta
MR2 Enthusiast
  • Total Posts : 162
  • Scores: 5
  • Reward points: 5949
  • Joined: 2011/04/07 19:51:15
  • Location: Perth WA Australia
  • Status: offline
2017/07/01 19:03:01 (permalink)
0

Big brakes keep locking up

Ok so my front brakes keep locking up too easily and its dangerous as hell. I have the tcs wilwood bbk on the front with supra rotors and deltav rear rx8 rotor brake upgrade with the gen3 calipers.

I haven't driven the car much in the last year but I don't remember my front brakes locking up so easily when I first did the upgrade a couple of years ago.

What could I check to see what may have gone wrong? I have flushed the brake fluid already but will do it again to make sure there isn't any air.

The car does have abs and I haven't disabled it.
#1


6 Replies Related Threads

    Admin
    Administrator
    • Total Posts : 2449
    • Scores: 550
    • Reward points: 6540
    • Status: offline
    Re: Big brakes keep locking up 2017/07/01 19:17:56 (permalink)
    0
    What year model is your car?

    Mr Glengineering.
    Please visit my other forums - 
    www.celica.org.au
    www.classic-ford.org
     
     
    My build thread - https://www.mr2australia..m/mr2play/FindPost/47893
    #2
    chausta
    MR2 Enthusiast
    • Total Posts : 162
    • Scores: 5
    • Reward points: 5949
    • Joined: 2011/04/07 19:51:15
    • Location: Perth WA Australia
    • Status: offline
    Re: Big brakes keep locking up 2017/07/03 01:32:35 (permalink)
    0
    1992 revision 2
    #3

    Admin
    Administrator
    • Total Posts : 2449
    • Scores: 550
    • Reward points: 6540
    • Status: offline
    Re: Big brakes keep locking up 2017/07/03 08:19:33 (permalink)
    0
    Does it have the 3/4 inch master cylinder?

    Mr Glengineering.
    Please visit my other forums - 
    www.celica.org.au
    www.classic-ford.org
     
     
    My build thread - https://www.mr2australia..m/mr2play/FindPost/47893
    #4
    Knightrous
    MR2 Deity
    • Total Posts : 2045
    • Scores: 272
    • Reward points: 5721
    • Joined: 2011/04/07 19:51:15
    • Location: .
    • Status: offline
    Eric
    QLD Moderator
    • Total Posts : 1117
    • Scores: 280
    • Reward points: 4319
    • Joined: 2012/04/06 21:41:57
    • Status: offline
    Re: Big brakes keep locking up 2017/07/03 11:28:19 (permalink)
    0
    Also, might be an idea to make sure your brake booster vacuum check valve is around the correct way. 

    If you have the early brake booster, the check valve is built in, however if its a late model one it's in-line. 

    1990 SW20 Hardtop - Supercharged 2GR-FZE
    #6

    5SGTE
    MR2 Deity
    • Total Posts : 1909
    • Scores: 163
    • Reward points: 4724
    • Joined: 2011/04/07 19:51:15
    • Location: qld Australia
    • Status: offline
    Re: Big brakes keep locking up 2017/07/03 13:49:02 (permalink)
    0
    If the car has been sitting I wonder if one of the pistons is starting to stick.
    #7
    Jump to:
    © 2025 APG vNext Trial Version 5.5