Jacked up mastercylinder I suspect

  • #1

    Jacked up mastercylinder I suspect

    Just put on all new stainless lines, new pads and TT calipers.

    with car off (no clutch to drive around) I push in the pedal and it goes down pretty far. I then pump it up a few times and it feels good while I hold it in place. I release and wait for about 3-5 seconds and push it in again and it squishes down pretty far again.

    Bad master you think?
    85 Z31 6.0 LSX turbo 766whp/792wtq
    04 GTO, LS6, big cam, porting, N20… underway for summertime daily driver.
  • #2
    yuppers, sounds like a seal is boogered up or just plain old defective.
  • #3
    Yep. I don't know why so many are bad, even right out of the box.
    Chuck Stong
    300+ Parts and Performance owner
    http://www.300-plus.com
    2002 ZCOT president and always active member
  • #4
    sounds like the check valve inside is bad. I have one that i used for about two weeks and swapped off (i mistakingly thought it was the problem, tapered pads). It's been full of fluid in a box for a couple weeks but it should be fine. I'll sell it cheap. It was a VB new, not rebuilt. If you are interested PM me.
    My beloved Z:1987 2+2 NA2T w/30a swap.
    My black sheep: 88ss parts car (pretty much stripped and gone)
    207k miles and counting. Turbo'd since 155k.
  • #5
    What's this, SATAN doing brake upgrades? LOL
    http://youtube.com/c/zcartube
  • #6
    300zxt wrote: What's this, SATAN doing brake upgrades? LOL
    Word up man!

    Ever since I bought my 85t back in 2000 It has had brake issues. Swapped out calipers to 88t's, nothin. swapped out to a reman. master, nothing. Swapped out to TT calipers+ stainless lines nothin.

    Gotta be the master.
    85 Z31 6.0 LSX turbo 766whp/792wtq
    04 GTO, LS6, big cam, porting, N20… underway for summertime daily driver.
  • #7
    IT'S YOUR MASTER!!! DA DUN DUN DUN DA DA!!! 8)
    2008 BMW E92 335i 6MT