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Abs Leaks R32Gtr

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dontfeelcold Experienced

dontfeelcold

Posted
Posted

Still no leak,

After it had sat around for a while that was when I noticed it leaked previously, so I recon it's fixed.

There are still orings on the inside of the unit that will be deformed and no longer sealing properly, reducing the effectiveness of the abs unit.

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dontfeelcold
dontfeelcold

The rebuilt ABS unit is back in and (partially) bled. Took it for a spin around the block and will check for leaks tomorrow. To bleed it properly the ABS unit needs to be operated while it's being bl

TXSquirrel
TXSquirrel

Z32 ABS actuator is now in! The plugs were swapped over so there was no cutting or soldering of wires. Tested the system 5 times by braking as hard as possible from 50 mph, then drove 35 miles home.

TXSquirrel
TXSquirrel

Super big thanks to Dane Miller at Houston Z Auto for meticulously and patiently fitting Z32's ABS unit into my R32. Also big thanks to Omnigear for his keen observation on the similarity of Z32's AB

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omnigear Proficient

omnigear

Posted
Posted

so its more worthwhile to use the r33/r34 abs unit for longevity?

There are still orings on the inside of the unit that will be deformed and no longer sealing properly, reducing the effectiveness of the abs unit.

Bozz Proficient

Bozz

Posted
Posted

The rebuilt ABS unit is back in and (partially) bled. Took it for a spin around the block and will check for leaks tomorrow.

To bleed it properly the ABS unit needs to be operated while it's being bled with pressure. When you start the car it runs the ABS motor, but I'm not sure if its actuating the solenoids.I have a feeling these were pre-bled at the factory then installed.

Next step is to monitor the ABS with an oscilloscope so I can make a bleeding tool. Then I can bench test whole unit :)

Would you happen to be in Melb? I lost motivation but another person into electronics and cars would get me back on this project again. Got all the test tools here :)

dontfeelcold Experienced

dontfeelcold

Posted
Posted

Would you happen to be in Melb? I lost motivation but another person into electronics and cars would get me back on this project again. Got all the test tools here :)

I'm in Sydney. I have an oscilloscope now so I can monitor the solenoids when the ecu is activating them.

Ideally I would like to reprogram the ecu. The original one is designed for a new standard car, not what everyone has now.

If you don't mind, let me know your thoughts on how you plan on testing them.

  • 2 weeks later...
  • 3 weeks later...
Stuckinkaos Newbie

Stuckinkaos

Posted
Posted

Can i get an update on this? I would like to know all the materials used in this. My ABS pump is leaking around the motor and i want to rebuild the 0-rings within the unit. I have an o-ring that has about 30 different sized o-rings.

  • 2 months later...
Stuckinkaos Newbie

Stuckinkaos

Posted
Posted

So I have rebuilt my abs pump using just some O-rings I had. It's been about a month with no leaks. I did make a video breaking down the pump.

I'm also interested in swapping in a R34 abs pump. Looks simple as the plugs are almost the same. Looks like a simple repin job.

I need the wiring diagram for the R34 abs pump. I have access to dozens of pumps and want to give this a try. An abs delete is always an option too.

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MrStabby Grand Master

MrStabby

Posted
Posted

R34 has 6 solenoids, R32 has 3. You need to run extra wires.

Weird. I've heard of 3 and 4 solenoid units, the difference being whether the rear wheels use a single circuit for both wheels or one for each. Any idea what the 6 are for?

Stuckinkaos Newbie

Stuckinkaos

Posted
Posted

ok, a search has brought me nothing yet again.

How does the r34 ABS have 6? i really could use a wiring diagram.

Which is better to swap? R34 or R33? i have access to a R33 GTR ABS pump and all R34 ABS pumps are the same from what i have seen.

Im sure there are only a handful of people that have attempted this.

  • 9 months later...
TXSquirrel Community Regular

TXSquirrel

Posted
Posted

Hi folks, new R32 GTR owner here, and sorry to revive an old thread.

The ABS actuator has been leaking since I got my 1990 GTR back in May this year. I would like to know if you fine folks can please share information regarding the size of O-rings, so I can gather them before I take mine to a shop for rebuild. Also, there was a mention of a video on tearing down the actuator. Is that video available?

Thank you all in advance, Squirrel.

GTSBoy Grand Master

GTSBoy

Posted
Posted

I would have thought that a brake specialist workshop accustomed to working on ABS actuators would not only have a bunch of suitable O-rings on hand to suit any and all makes but not require their customers to source them beforehand.

Hint...I'm suggesting taking it to a brake specialist - a proper one, not one of those bloody chain store type ones you have in the US - to get it serviced. Given that you're going to take it to "a shop" for the work anyway.

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