Question about 1985 Nissan 300ZX

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Got 300zx thats sat for 8 yrs car starts and runs good but clutch is staying engaged.I have heard i need to check slave cylinder if so where is it located

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Do you have a pedal? In other words can you feel pressure when you push it? I think your clutch has rusted to the flywheel in 8 yrs this is common. Try this put it in third gear, then push the pedal to the floor and have 2 or 3 friends push the car back and fourth until the clutch frees up. This might work, or put it in third gear then push the pedal down have the car against a solid wall or tree then try starting it. If this all fails you need to take out the transmission.

Posted on Jul 22, 2010

  • phantaxtic Apr 09, 2011

    In 300zx'x the master clutch cylinder can seize up as well.

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Slave cylinder is located on the side of the transmission behind the main flywheel housing and points towards the engine. Follow the clutch pipe down from the master cylinder. The slave is about 12cm long by 4cm in diameter with a bleed nipple on the top. You may want to change the fluid after 8 years! What can happen if the car has not been moved is that the clutch disc becomes bonded to the flywheel by corrosion, exactly in the same way the brake pads can seize the rotors. Make sure the wheels are free to rotate. Lift a rear wheel clear of the ground and chock the front wheels, as you start the car the differential will transfer the power to the lifted wheel. With the foot hard on the clutch take the engine up to about 2000rpm, hold the accelerator at that speed and pull the hand brake on and off slowly. With luck the snatch of the handbrake biting make break loose the clutch plate. You will know when it breaks free as the engine will rev freely. When you do get it free, slip the clutch for a while to scrape clean the friction plate on the flywheel. Likewise when the car is moving ride the brakes to polish the rotors of corrosion.

Posted on Jul 22, 2010

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1 Answer

Transmission 300zx


any noise from gearbox when you engaging clutch when engine is running? Check for oil as well. Firstly I suggest to drain oil out and check for particles in the oil, synchros could be damaged

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I have a 1992 nissan 300zx and i just installed a new clutch master cylinder and a new clutch slave. i'm tring to get the pedal to get firm so i can bleed it and get a full pedal,but when the pedal gets a...


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My car sat for about 5 months in the yard. Clutch and transmission are new rebuilt. Went to move the car clutch went to the floor and stayed there. What can I do?


Sounds like you either need to bleed the clutch slave cylinder, or you need to rebuild or replace the clutch master cylinder and slave cylinder. You might want to check with the shop that replaced the clutch and rebuilt the transmission. It may be covered under their warrantee.

Dec 24, 2009 | 1987 Nissan 300ZX

1 Answer

HI, I RECENTLY BOUGHT A 1990 NISSAN 300ZX NON TURBO 5SPD. I GOT THE ENGINE RUNNING BUT WHEN I PUT IT IN GEAR THE CAR DOES NOT MOVE. THE TRANS FEELS LIKE IT IS IN GEAR AND DOES NOT MAKE ANY STRANGE NOISE....


being 1991, and a sport car, good idea to go ahead and replace slave cylinder since you have them and very easy to replace. If you able to push your car while is in any gear more likely the clutch pad pressure plate are worned and slipping. If you can push the car while is in gear even the engine is not running than it will be your clutch pad and your presure plate is shot that would mean you tranny has to come out. once you in the tranny you might as well replace with new clucth pad, pressure plate and throw out bearing. Also check your fly wheel make sure is not ate up. if it is then you will have to have the flyweel resurface by a machine shop. using the lift is the best way to work on the Z. most garage will charge 400-500 to do the work.

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1 Answer

300Zx will not shift out of 5th gear


is there any pedal pressure when you step on the clutch? I had a similiar problem with my 91 300zx tt....it was stuck in third gear, no pedal pressure on the clutch whatsoever....i had cracked the pivot ball and the clutch slave 'popped out'. i had to pull the trans to fx the problem because i could not reattach the clutch fork onto the release bearing with the trans in the vehicle....you need to bleed the system...gravity bleed the slave until there are no air bubbles. make sure you top off the clutch master cylinder in the process.....then bleed the clutch operating cylinder.....it is in the passenger front hood near the power steering resivoir....top off the clutch master cylinder again. i hope this helps.

Apr 03, 2009 | 1990 Nissan 300ZX

1 Answer

Clutch 'pops' straight to the floor in my 93 300zx


The slave cylinder is replaced simply by removing 2 14mm or 12m nuts on the bottom side of the trans. There is no need for transmission removal.

Remember to point out to the shops that there are two bleeding points for the clutch. On the slave cylinder itself and under the hood on the passenger side. Its right behind the windshield washer fluid fill spot. Sometimes the bleeder is covered with a black cover.

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1 Answer

Clutch works fine until. except that it doesnt


I don't have that shop manual, but the slave cylinder looks like a small brake master cylinder and is on the firewall on the driver side.
Check to make sure floor pan is not split by slave cylinder. Some had weak floors that needed reinforcing. Ford had a kit.

Otherwise, replace slave cylinder. tascafordparts.com sells at discount.

Please rate as fixya if this solves your problem.
Report back and good luck

Mar 05, 2009 | 1989 Ford F 150

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