Clutch problem, please help.

[Rubberman2003]

I have a 90 gsx. 3 days ago i installed my evo3 16g, 660's 190lph,safc,logger.

FINALLY got it running the way i want it, then i have a clutch problem.

Came up to a stop, put the car into neutral rather than holding the clutch in. Then i cant get it into first, i tried pumping the clutch. I finally got the car moved(was going down a small hill luckily) I shut the car off and i can move the shifter ok then, i put it into first and crank the engine the car moved forward when i did this (clutch not disengaging) i got it running and moving and i had to drive it home without a clutch, just did some rpms matching to get the car into gear. Whenever i shifted gears i could feel the clutch pedal "move".

Would this mean that my pressure plate could be busted. Going down the road i could press the clutch in and the rpms wouldnt drop down, so i know thats its sticking. A couple of times i pressed it in, it seemed to work, but most of the time it did not. This is on a 90 gsx. The fluid level is also fine.

I tried to look at the clutch fork...it looks ok, i can move it in and out to push the rod that goes into the tranny. If I put the car into gear and crank it, the whole cars moves forward, which i know means the clutch is stuck somehow. When i start the car in neutral.....when its running i push the clutch in, i can hear it making noise up under the hood......like its rubbing or something....not a violent sound but definally noticable. Any ideas? I need to fix this asap.

 

[Tsi-Tuner]

yep that sounds like a bad clutch mine is doing that right know to i plan on fixing mine next week you should to

 

[eclipsh]

Start by checking the easy stuff. Check your master and slave cylinders for leakage. Check your pedal for poor opperation too. Are you familiar with the 1G pedal problems?

Oh, and consider this practice. You'll get really good at pulling your tranny when you own a DSM, trust me.

 

[Rubberman2003]

I dont see any leakage.

I have heard about the pedal assembly problems, is there a way to check that without pulling it all out?

 

[eclipsh]

yes there is. Crawl under your dash with a flashlight. You'll need to find the clutch master cylinder again and be able to wiggle the clutch pedal. Pull the pedal all the way out and then start pushing it back in. If it moves without the master cylinder rod moving you have a bad pedal assembly.

When you checked the slave cylinder, did you pull the boot back? Was there any fluid inside the boot?

 

[Rubberman2003]

I did not see any fluid inside the boot.

Sorry i have not had another chance to look at it....im working 2 jobs, and moving atm so im kinda tired/stressed out.

 

[Ultimatedsm]

Clutch not disengaging while you press the clutch pedal down. Lets start at the basics:

a) When you press the clutch pedal, the master cylinder takes the mechanical energy(You pressing the pedal) converts it to chemical energy (Hydraulic Pressure). It goes to the slave cylinder where it takes the chemical energy and converts it back to mechanical energy (Actuating the clutch fork).

b) The clutch fork moves your throw out bearing or release bearing to the pressure plate assembly diaphragm.

c) When the diaphragm is pushed in, the retracting springs push the pressure plate away
from the clutch and disengages the engine from the transmission.


There are a few possibilities. If you had to pump your clutch pedal to disengage the clutch a few times, check your master and slave cylinder. Bleed the system! Additional to this check your freeplay. Too little freeplay can cause the clutch to slip or too much will cause gear clash or grinding. Remember too little freeplay is a sign of a worn clutch because the diaphragm springs actually get pushed more outwards do to the inner/outer pivot rings.


If that doesn't work, check your clutch fork to see if its bent or something.

Anyway, start with the easy stuff like how it is stated above by the other dsm'ers. Than consider what I am saying here.

 

[Rubberman2003]

I might not be home for a day or two. But when i am ill doble check things. The fork seems ok, the fluid level sreems good, also the pedal assembly seems alright. Ill check to see if its pushing fluid or not. if it is, it looks like ill be pulling the tranny.

With my car, 90 gsx

3" turboback
mbc
hacked arican and K&N
evoiii 16 g
660's
190lph fuel pump
safc
logger
5 speed

would a act 2600 fit my combo pretty good?


I also found out that one of the bolts that holds the pressure plate to the flywheel is broken off, broke when it was put on....would that cause it? Must have been like that for a while...couple thousand miles at least.

 

[Spyderman7]

Bleed it ,adjust it,but it's probably your pressure plate.You need all 6 bolts.

 

[eclipsh]

Without that one bolt on the pressure plate it is probably toast. It will warp badly without all of them torqued down slowly and evenly. Immagine what missing one would do.

 

[nightstocker99]

Start by checking the easy stuff. Check your master and slave cylinders for leakage. Check your pedal for poor opperation too. Are you familiar with the 1G pedal problems?

Oh, and consider this practice. You'll get really good at pulling your tranny when you own a DSM, trust me.

My master cylinder leaks in to the cockpit of the car check the top of the clutch pedal, and check the line that runs out of the slave it goes up to somehtng like a catch can. Also did you check your fluid?

 

[Rubberman2003]

I did check the fluid, it was alright.

If it is that bolt that is my problem, will i need a new flywheel?

 

[eclipsh]

No, your flywheel should be fine. You may need to have it resurfaced but that'd be about it. It'd be an ecellent time for a light weight flywheel if you can swing it though.

You will need a new clutch. ACT 2600 should be plenty.

 

[nightstocker99]

Or a Slowboy Racing 3500 Clutch which is a little stronger then the ACT