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Clutch Slave Cylinder (Maybe) R32 Gtr

ls128
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ls128 Collaborator

ls128

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Went for a charity car cruise yesterday..car had been very rarely not wanting to go into gear (i.e i'd have the clutch all the way in and it wouldn't select)

Didn't think much of it as it would just be a little grind when trying to shift quickly, when I Went slower it went in.

Went to do a 3 point turn in a car park, put clutch down to the floor....no pressure.

Pushed the car into a parking spot, saw clutch fluid all over the ground.

Spoken to a few of my mechanic mates they all think it's the slave cylinder that has failed, does anyone have any idea? Or seen this before?

Car has a HKS Twin Plate clutch.

Thanks!

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KiwiRS4T Grand Master

KiwiRS4T

Posted
Posted

Was your reservoir empty? If its the slave you"ll see fluid leaking. Fill the reservoir and watch it while someone pushes on the pedal (and look elsewhere on the line for leaks) Get a torch and look under the clutch pedal for interior leaks from the M/C and then under the bonnet.

ls128 Collaborator

ls128

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Yes, when I checked it at the time, it was empty.

Ok thanks, I will give that a try - in the mean time should I shop around for a slave cylinder?

There was fluid all over the ground in the initial spot, and again when I moved the car when the tow truck came.

Edited by ls128
MrStabby Grand Master

MrStabby

Posted
Posted

Yes, buy a slave. Also buy a master, as it will also be old and ready to die. Also, buy a braided hose if you're not feeling too poor. You will appreciate the feel.

+11ty. This is excellent advice.

ls128 Collaborator

ls128

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It's definitely the slave, had a proper look under the car tonight. For the extra 15 dollars I will probably go to JustJap as it is very very very local for me, Not sure if I will do the master, as that makes it a much bigger job then just slave, correct?

The Dan Grand Master

The Dan

Posted
Posted

"Keep the feeling"?

It's a twin plate..its the heaviest clutch I have ever felt!

Just jap has slave for 115, master is 300..braided clutch hose is about 150.

I wasn't referring to clutch feeling. Read between the lines (Toyota genuine parts - keep the feeling)

ls128 Collaborator

ls128

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I wasn't referring to clutch feeling. Read between the lines (Toyota genuine parts - keep the feeling)

Heh yeah, I realised that about an hour after I replied and was re-reading the post.

Got a genuine nissan slave for $105. Swapping it out tomorrow morning and bleeding. lets hope!

  • 4 weeks later...
ls128 Collaborator

ls128

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So, Swapped Slave cylinder, Master cylinder - now when the car is in gear, and the clutch all the way down to the ground, car will creep forward like the clutch isn't engaged.. looks like i'm up for a new clutch :(

MrStabby Grand Master

MrStabby

Posted
Posted

So, Swapped Slave cylinder, Master cylinder - now when the car is in gear, and the clutch all the way down to the ground, car will creep forward like the clutch isn't engaged.. looks like i'm up for a new clutch :(

Disagree - what you have still sounds like its not fully disengaged. My guess is there's still air in hydraulic system. I'm told it can be a bitch to bleed the clutch hydraulics, especially the "dampener box", or whatever its called.

ls128 Collaborator

ls128

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Disagree - what you have still sounds like its not fully disengaged. My guess is there's still air in hydraulic system. I'm told it can be a bitch to bleed the clutch hydraulics, especially the "dampener box", or whatever its called.

Ok abit more info:

Saturday, put a new master cylinder on. Adjusted the master cylinder inside the cabin (almost all the way, only 1-2mm of thread left) Worked for about 20 minutes of driving, then started doing the same issue. Often won't go into first, or reverse. Start the car in first, with the clutch fully in and the car will crawl forward like it is in gear (despite the clutch being foot to the floor.

System was gravity bled and pump bled for an hour. in total we bled it 3-4 times.

Spoke to a mechanic friend and he says that he had a similar issue and when he pulled his clutch out several of the clutch springs had come loose.

jiffo Mentor

jiffo

Posted
Posted

Suggest you grab someone who knows how to adjust the push rod on the master cylinder.

No way is it right if you're down to the last threads ????????

Have you any free travel at all?

Without free travel the master cylinder will never prime correctly.

Did anyone check the booster unit.

ls128 Collaborator

ls128

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We adjusted it more because before adjusting the rod it still wasn't giving enough pressure - my mechanic had a look and he said there was enough free travel.

Check booster unit as in how? We didn't touch the adjustment rod inside the booster unit.

MrStabby Grand Master

MrStabby

Posted
Posted

Saturday, put a new master cylinder on. Adjusted the master cylinder inside the cabin (almost all the way, only 1-2mm of thread left) Worked for

System was gravity bled and pump bled for an hour. in total we bled it 3-4 times.

Where did you bleed it from? If its just from the slave, then that I dont think it will be effective. Actually, i cant really see the point of a bleeder on the slave....

ls128 Collaborator

ls128

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Where did you bleed it from? If its just from the slave, then that I dont think it will be effective. Actually, i cant really see the point of a bleeder on the slave....

Yeah from the slave..after we dropped all the fluid out and put the new master cylinder on. We spent a fair bit of time making sure all the air was out of the system..

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