Jump to content
SAU Community

R32 GTR Brake booster issues

Stixbnr32
 Share

Recommended Posts

Stixbnr32 Rising Star

Stixbnr32

Posted
Posted

Hello,

I just got my car out of the garage as its been stored most of winter and been driving it.  I then noticed my brake pedal was hard to press and pretty wooden/stodgy.

 

The car still stops but it wont lock up or kick in ABS.  There is no ABS light.

 

I think its the booster but I looked for a vacuum leak but could locate one.  If its the check vavle in the booster where is this and how can I fault find.

 

Any help be great.

 

Thanks

 

Link to comment
https://www.sau.com.au/forums/topic/472866-r32-gtr-brake-booster-issues/
Share on other sites
GTSBoy Grand Master

GTSBoy

Posted
Posted

Check valve is easy.  Remove hose from both end connections.  Suck and blow at one end.  If you can both suck and blow, it's broken.  Get a new one.

The booster can also suffer a broken diaphragm and can leak at the shaft seal.  It's surprising that this is the first time you've had this on this car.  I did the booster in my R32 at the beginning of the century.  You can get them rebuilt.

Stixbnr32 Rising Star

Stixbnr32

Posted
  • Author
Posted

All checked and ok.  

Talking to some brake companies and they reckon a couple of things.

1) Wheel and tire combo is decreasing brake performance.

2) might have been a small bit of film or something on the rotor that didn't help at the time as it feels slightly better.

 

They seem to think that big wide wheels will decrease braking performance -  see it all the time apparently.

 

 

 

Duncan Grand Master

Duncan

Posted
Posted

yeah. Pull off the vacuum line that goes to be booster and block it off on the engine side, and see if the braking changes at all.

dead feeling pedals can have lots of causes including glazed pads or rotors. Cold race pads. Not generally water or air in the brake lines because gives you a "holy shit the pedal just went to the floor and I'm going to drill that camry" in traffic kind of feeling

Create an account or sign in to comment

You need to be a member in order to leave a comment

Create an account

Sign up for a new account in our community. It's easy!

Register a new account

Sign in

Already have an account? Sign in here.

Sign In Now
 Share
Go to topic listing


  • Similar Content

  • Latest Posts

    • hoodedreeper
      Chris' Toyota Mark ii JZX110

      By hoodedreeper · Posted

      Initially I thought having a pair of Recaro seats would be a big bonus, it turns out these do get a little uncomfortable on long journeys (my fault, not the seat). I had a look through the GSM Performance website at reclining seats and booked an appointment to visit their show room. I got the Recaro Sportster CS for the R34 from here, was very happy with the service received so of course a re-visit was in order. Unfortunately the two Corbeau seats I had chosen aren't on display but they had 4 other options available. Two seats dug into my back, one dug into my legs and the other was perfect. I also found out that Recaro seats use a larger bolt pattern so some adaption was required. Luckily GSM offer some universal adaptors that should solve this problem. I searched the interwebs for price comparisons and Corbeau themselves were the cheapest at £300 cheaper (for the pair). I asked GSM if they could price match, unfortunately they couldn't. I later received an email saying Corbeau would honour them the same discount, but the purchase was already made. I did however order the brackets from GSM, both arrived on the same day. I started with the passenger side seat, knowing this was going to be a little trial and error. There are 3 mounting holes at the front and 2 at the rear on these JURAN Racing seat rails.  With the adaptor brackets mounted, the allen cap bolts started to push into the seat, NOT GOOD!  The rear mounting holes lined up but there were issues at the front. The holes were 1/2 hole out, so the brackets got a tickle with the drill to modify the holes. The supplied bolts weren't going to be long enough and a spacer was needed to stop the adaptor bars from bending. A local fasteners company supplied be with some nylon spacers and longer bolts (M8x30, although these will be replaced with 35mm long shortly) A before and after I pre-drilled the front bracket before making a start on the driver's seat to save some time. And in no time at all that was in the car too. The all black seats have transformed the interior and these are MUCH more comfortable. The only downside with the new Corbeau seats is I sit a little higher, but I'll happily accept that over discomfort. The Youtube video can be found here: https://www.youtube.com/watch?v=wPyttKPktXA
    • oHBoy.
      2001 R34DE

      By oHBoy. · Posted

      All 3 I guess. The car came with the JASI Aero 4 door Type R Full Kit unpainted so this was one thing at the top of my list to complete then I noticed there were body panels parts for this kit so i picked them up along with some black mesh to fill in the front bumper and front side air vents. car is at a paint and body shop atm completing this work. Next I will be addressing the internal bells and whistles, great summer project I can do with the kids.  full interior removal - ,boys car sound deadening - pads and spray ,boys stereo, sound, lighting - Big 3, GTT or bigger alternator ,kids head lining - dye black add star lighting mod ,daughter. That's it for the next 5-6 months. I have some motor maintenance  work i have to plan out. oil filter relocation, gaskets, mounts. beyond that, mind is starting to turn over if i can use a DET intake plenum, block off turbo ports & pipe in a air intake.      
    • oHBoy.
      Starter motor replacment teeth count.

      By oHBoy. · Posted

      roller coaster of a ride. Alarm system was removed & main harness was repaired where possible. still no fix just random successful starts. moved on to the replacing the ignition switch and relay. well all this troubleshooting & repair has been going on, the car is at a paint and body shop being pushed around. Ive been going down there on odd days after work to get it sorted.     
    • fatz
      Beers and skylines Fatz style

      By fatz · Posted

      5th November if you want to come out for a spin wakfield
    • jtha7
      Strange issue RB25DET wont start

      By jtha7 · Posted

      PROBLEM WAS BROKEN COOLANT SENSOR!!! Replaced with a new one and its running mint.
×
×
  • Create New...