hi, thx for lookin, first i have a 91 na rx7, but this week suddenly i cant get it to shift in gear. i was just waitin at a stop light and it happened. i changed the clutch and the tranny 2 yrs ago. rite now when i press down the clutch pedal, there is no push back feeling, it is spongy and muckh lighter than before. and once the car starts i cant get it in to gear even when i press the cluth pedal, is there anyone who can give me a bit of advice about this. thank you all.

 

check the clutch hydralic system first. It may have sprung a leak and hence you have no clutch. You can't go into gear with the car running w/o the clutch.

Heres an idea

Car off, put the car in gear, clutch in, and start the car. If the car leaps forward (or reverse depending on gear), you know the clutch hyrdalics or mecahnics are screwed.

 

Check your clutch fluids. You've somehow either gotten air into the system of have leaked all your fluid out.

-Markus

 

if your fluid levels look good and there aren't any drips, it could also be one of the cylinders with bad seals (master/slave)

but def check the fluid levels and bleed the system.

j.ho

 

if none of that works try checking the throwout bearing.

 

thx all, i checked last nite and the car can start with a gear in and with clutch pressed down. i also checked the fluid, which is full and i still not sure what the problem is. i hope i can get more help from u guys. thx a lot.

 

If the fluid is full, then you most likely have a hydraulic problem...

Have someone watch the clutch fork while you depress the clutch, to see if it moves. Also, make SURE you checked the CLUTCH fluid, not the BRAKE fluid.

 

wat do u mean by "hydralic problem" is that the master cylinder and slave cylinder?

 

pilot bearing is dying.


-Ted

 

Yeah.. when my pilot bearing finally went I couldn't get the car into any gear.. if you want to continue to drive (bad idea) start the car with the car in first and the clutch in and rev the crap out of it to get it to break free.

 

1) check fluid...if low, replace and bleed system.

2) adjust clutch pedal

3) replace clutch master cyl

4) replace clutch slave cyl

5) tear trans out and replace clutch, TOB, and pilot bearing. be sure to clean and lube trans input shaft and inspect for burrs or dirt, as well as inspect the clutch fork and pivot ball.

Somewhere among all that you WILL find the problem.

 

That's a damned good idea...how'd you figure that out?

 

actually, i changed my transmission and clutch once before, hopefully its not that again...
thanx for all your advice so far, i am gonna keep checking.

 

hmm i dont know this dude i know named kevin who happens to be a rotary genious let me know that i should try it! oh wait! wow im lame.


yeah even after that it was so hard to seperate my engine and tranny.. had to pry them apart with two huge screwdrivers.. was fun!

 

I gotta replace the pilot bearing on my truck DOH! Mine would grind when going into reverse or first, (no synchros) It is also hard to shift sometimes. I think thats the problem that you have.

 

if you need a slave or master, try nopi.com. they have tockico i think i paid like 50 for the whole setup and then i bought a mazdatrix ss braided line. i have a upgraded slave and master with lines for about 70 bucks shipped

 

The spongy pedal feel points to the clutch hydraulics - master /slave / or hose.

The fluid should be clear as beer. If it has a dark tint, the master cylinder is worn.

 

thx for all your help, me and my dad just took down the transmission this week, and notice that there is nothing noticably wrong with it, so i think the problem is back to the master and slave cylinders, so we got a rebuild kit for the cylinders. hopefully that can fix the problem.

 

oh.. man!.. ahahaa.. i posted a bit late.. and you have already torn down your tranny.. sorry man!!.. but its the master and slave!!.. ahaha i can bet on it!.. i had the same problem.. when started.. car will not go into first of reverse.. you would have to stick it in gear then start.. but if you try pumping the clutch before start.. or before gearing it works alright... but change the master and the slave and it should be fine.. i got mine from nopi as well.. my stainless hose some how took a bit long.. but the master/slave got here fast... it looks nice. and works just as new now!... but good luck..

jeff

 

I had the same problem and mine was the clutch slave cylinder. I notice the leak when I was about to lossen the tranny bolts. I go the 10 dollar rebuild kit from Auto zone and it worked fine. Those prices at nopi.com are good. The slave cylinder at Autozone was like 70 or so.

 

i got my rebuild kit for the master from napa for about $16, it was hard to find, i was glad that i got it, hopefully that will fix the problem. but there was no leak on the cylinders tho.

 

thanks everyone for the help. my car is now finally runnin again. the problem was that the mechanic did not install the clutch right so that cz the clutch mount to deform since day 1. so i have to change my clutch again. and then there is the clutch fork problm, the little bolt behind it that act as a crusion also broke, so all together made my car took a long vacation in my garage. but right now it is all good now. thx again for everyone's help.
peace