Jump to content
SAU Community

Recommended Posts

Wondering if anyone has made or bought a brake pressure bleeding setup for an R33 GTST master cylinder.

I need to pressure bleed the brakes in my wife's euro, so I've made up a pressure bleeder using a weed sprayer from bunnings, a Volvo master cylinder cap from the wreckers (don't have a Volvo, but most euros seem to use the same screw-on MC cap), a pressure gauge, and a few brass 1/4 BSP fittings. It fits and seals on the euro cars I have - haven't actuall bled the brakes yet but no reason why it won't work.

While I was at the wreckers I also bought a Nissan MC cap - the 3 tab, 1/4 turn style - and made up an attachment to use it on the same bleeder. I can't get it to seal onto the master cylinder - as soon as I pressurise the line it leaks like a sieve from where the cap seals to the outer lip of the M/C. I tried a couple of different seals, but still the same. I haven't been able to find an off-the-shelf cap to suit a pressure bleeder either.

Anyone done this with one of these M/C's? Anyone know of an afermarket cap or seal that would work better.

Geoff

 

I've got an SP tools one I use on the 32 GTR, 33 GTST is probably the same I guess as they all use the same master cylinder. SP70821

BTW thread over here for another option....note that it took me months to get the correct part from SP....

 

Thanks Duncan - just the info I was looking for.

What fits into the hole in the SP Tools adaptor - I'm guessing the SP kit includes something that seals and connects to the pipe. The hole looks too large to take a Nitto or similar quick connect directly. I'm not sure how I'd be able to connect my hose to it as is.

The alloy Motive adaptor looks nice, but I can't find an AU supplier. 

I

 

  • 3 weeks later...

Just to bring this up to date - it may help others looking to do the same.

I made a pressure bleeder using a Bunnings weed sprayer, a few brass fittings, a cheap pressure gauge, and a female quick-disconnect fitting. There is plenty of info on the web about this. The main thing I did different was to put the pressure gauge at the master cylinder end of the hose, rather than trying to tap it into the weed sprayer bottle.

20181120_180003.thumb.jpg.ae2ee5fa34c52e154fb1c48d020e3832.jpg

I've got a couple of euro cars as my wife & my daily's, plus an R33 GTST track car, and wanted to be able to use the bleeder on all of them.

The euros were easy - they both (like most euros it seems) have a screw-on master cylinder cap. I went to the wreckers (U-Pull-It in SA, so I could walk around the cars and choose what I wanted) and bought a euro MC cap. I actually got a Volvo one, as the top surface was flatter and suited what I wanted to do. I drilled a hole in the centre of the cap, and self-threaded a 1/4 BSP quick-disconnect male fitting into it, with an o-ring to help seal the fitting to the cap. To bleed brakes, remove the MC cap from the car & replace with the modified MC cap, put new brake fluid into the weed sprayer (optional - you can also disconnect & refill the MC as needed while bleeding), pump the weed sprayer up to around 15psi, and start bleeding from the furthest wheel. I connected a length of clear hose to the bleed nipple, and put the other end into a waste bottle. Cracking the bleed nipple lets fluid flow out into the waste bottle, pushed by the air pressure into the master cylinder. Repeat for each wheel, making sure the MC doesn't run dry.

20181120_175941.thumb.jpg.38e1959998d444518bfcb0427dae32ac.jpg

 

The R33 was more of a challenge. I also bought a Nissan MC cap from the wreckers, and threaded a QD fitting into it like I did for the euro. When I tried this on the R33, the cap didn't seal well enough to the MC. I couldn't maintain air pressure, and if I put new fluid in the weed sprayer it leaked out of the MC cap. After doing some searching, I realised that the commercial bleeders seal against the inside wall of the MC, not against the top surface. I then drew & 3D printed a bung, with an o-ring groove, which fits into the top of the MC. I used the cap from the wreckers, with a larger hole drilled in the top, to stop the bung from being forced out by the air pressure. I haven't actually bled the brakes yet with this bung, but it holds pressure so should work fine.

20181120_175918.thumb.jpg.13d7b7736b34ba7adf656fc360a15273.jpg

All up cost was less than $30, but I already had the brass fittings, pressure gauge & QD fittings.

Edited by GeeDog
  • Like 3

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


  • Similar Content

  • Latest Posts

    • Seat of the pants assessment of the new intake: The car is way less "doughy" when hitting the loud pedal, especially off idle when stopped or in traffic, I did use a cheapo lazer thermal thingo to measure the temp around where the pod filter got its air, it was between 55 - 60°C, in saying this the car was shut off and not moving, so the OEM intake pipe was not supplying any fresh air to where the pod was when the car was at least moving A weird bonus was induction noise on the throttle in the cabin increased a bit,  I was worried that I was actually going to lose some of that induction noise I love so much, outside though, when I got the daughter to do a WOT drive by pass for me, the induction noise has increased alot when on the throttle, not quite ITB doort, but well up there I'm extremely happy with the results and have been exploring the country roads in the region  As for house mods: 1.New front fence is up and is awesome, it really upgraded how the joint looks from the street, and the added security is nice 2. Electricians have replace some interior lights, and with more lighting in the garage, a few new motion detecting lights out the front above the garage, front room, and at the front door, which I have already found heaps helpful coming and going, also now has fancy pants CCTV all round the house The only hold point for power though is the solar and batteries due to supply issues, although this will happen over the next few weeks 3. I have done a heap of landscaping out the front and I'm almost ready to do a new small retaining wall with some nice blocks to replace the brick and cemented in rocks around the raised garden beds cemented in river stone "was the fashion at the time" the house was built. I currently have a pallet of retaining wall blocks and 2 bulka bags of 20mm blue metal to replace the wood chip that is in the raised garden beds around the house 4. I now have 3 big raised garden beds for out the back to grow some vegetables, about 70cm high, 200cm long and 100cm wide 5. My 2 compost bins are already pretty full with brown, green and kitchen waste from the landscaping I'vedone so far, but they will probably take a few months to break down, so anything else that gets chopped, trimmed, and kitchen waste will just start filling the base of the raised garden beds to about 30cm before I start throwing 40cm of good compost, and stuff, for the vegetables to grow in, I'll need a few ton of compost and soil, but the local supplier can sent me bulka bags of the stuff Basically the logs, wood chips and a few strategically placed rocks for drainage, will give the beds some good organic materials down low to break down over time, and they will hold moisture during the warmer months to save the water in my big arse water tank if we don't get alot of rain So, all in all, the car and house mods are going well, and I'm really enjoying being retired, I sleep in too 0700 and slowly plod around inside until I feel like actually doing anything, and only work in the yard for as long as want, which has actually been alot over the last few weeks,  although when you look at it, it seems that not a huge amount of work has been done,  until I look at the before I started the work pics Happy days and good times indeed 
    • hahaha yeah. Plan is to get side skirts and probably just rear pods. But going to do them one-by-one. I've got a set that I really like from RHDJapen, but that one isn't shipped to AU. So need to find someone who can get it for me
    • Here's an idea, answer the questions I asked you as they are trying to work out WHY the LSD will be binding up in a straight line.
    • You haven't driven many modern cars then have you? Most of them have sfa steering feel with their stupid electric bullshit steering systems.
×
×
  • Create New...