Early this year, when I did my clutch, I replaced my clutch slave as well.
I put maybe 3000-5000kms on the car before it crapped out (hence the
SR swap).
I used the same slave in the SR since the slave that came on the SR
tranny had a leaky rubber piece.
I drove the car for maybe 900kms or so and then the clutch pedal finally
started going soft.
I bled the clutch, checked to see if the fluid level had dropped if there was
a leak but the fluid level was pretty much same.
I bled the system several times and it would hold pressure but after a
while it would start to go soft again. Once again the fluid level didn’t really
change.
I tried moving the clutch fork with my hand but it was too stiff.
As well, there is a very subtle rattling sound in the tranny when the clutch
is disengaged. This is obviously the throw out bearing but that doesn’t
really explain my soft clutch.
Anywho, the clutch is getting replaced next spring (with an ACT
HDR6 :noes: ) but I figure I find out if the master or slave is kaput.
when looking at the slave, pull back the rubber boot to see if its wet (leaking). My pedal was soft, and I wasn’t visably loosing fluid, but my slave was leaking past the shaft seal, but was hidden by the boot. The leak wasn’t much, but it was enough to get air into the system.
I say throw in the old KA slave, and see if that fixes it.
What is it with you and clutches Gautam :?
I’m suffering from the same predicament, my clutch pedal went soft somewhere along the way this summer and I have bran new clutch.
Ussually this is caused by air in the system, if the clutch isn’t slipping I doubt its clutch related. Likely, slave or master.
Bleed the system and see how it feels.
Andrew.
EDIT: I just re-read and see that you did bleed. So when you did this it was ok for a bit then went soft again? Air is getting in somehow if this is the case.
Andrew: It’s a sign that I must go Automatic. :noes:
After I bleed it, I don’t get full pressure, I get maybe some back; enough
to allow me to shift through the gears.
When this happened, I bled it one night and the next morning I took it to
work. Around when I got to work it started to lose its ‘feel’.
When I was coming home that night, it just got softer and softer…
eventually I was a few traffic lights from home and I just couldn’t
put it in gear. Had to pump the clutch and rev/force it into gear.
Somehow air is getting into the system I think; just not sure.
if you are bleeding the system wrong you could mess up the seals in the master cylinder. The master cylinder is propably leaking internally. that is what happend when i changed my clutch…
What’s up with the tranny if the car shakes like crazy when you try to get it going in 1st and shakes again in some other gears? I think toyota said something about a seal being bad somewhere? Or the clutch slave? It also smells bad too. This is my celica btw, 240 is fine. I kinda retired the celica but I’d love to fix it and have it as a beater.
Gonad, J Camel on the board had the same problem. When the clutch was put in the throw out bearing wasn’t greased, also the dust boot had cracked and some gunk had collected inside. After the the above items were fixed, the car ran perfect. Oh and by the way, initially the master and slave cylinder were replaced and the system was bled multiple times, but nothing worked. Good luck!!!
That doesn’t really make any sense. The TOB has nothing to do with clutch feel. If your clutch fork is stiff by hand, but weak by pedal …
Anywho,
Have you driven an unsprung 6-puck clutch before?
IMO one of the 100% most surefire ways to make you hate driving your car.
You’d get about as much clamping force with a double diapraghm pressure plate and a stock clutch disk. That’s a lot of clutch for 300hp max.
If the tranny shakes while in gear, it’s probably the tranny mount. The motor walks around a lot on the crappy stock mounts, so without the tranny mount, the tranny will move a fair bit and make bad noises.
It shakes more in low gears because of torque multiplication.
my tranny does that also… sometimes i’ll be on the hwy doing about 100-120 and the acceleration the tranny would feel shaky and i will downshift and shift back or press and release the clutch a few times and that vibration is gone… i wonder what is making this happen??
