Question about 1991 Nissan Pickup

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Clutch not worhing

Air getting in hyraulic lines

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  • Nissan Master
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Is your clutch master cylinder about empty,your slave cylinder could be bad and leaking,also look for leakage at clutch master cylinder,go to transmission and see if leakage is at slave cylinder,here's how to replace,Here's the part.Here's my 85 Nissan 4x4.

Posted on Jan 19, 2013

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Posted on Jan 02, 2017

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Haveing problems with getting in gear,had new clutch,and fly wheel


You didn't say how long ago the clutch and flywheel was fitted.

If it was recent the car should be returned to the repair shop for some free-of-charge rectication.

If the clutch is cable operated it might need adjusting or if the adjustment is automatic, perhaps it is broken.
If the clutch is hyraulically operated perhaps all the air wasn't bled from it leaving it with a spongy pedal feel and insufficient travel.

Perhaps there is too many carpets under the clutch pedal. It is not unusual to have to press the pedal right to the floor with a brand new clutch.

If the gear lever selects all the gears easily with the engine off, but not when the engine is started, the problem is likely to be the clutch.
If the pedal feel is normal and there is maximum travel being delivered to the visible clutch mechanism the problem is likely to be inside, requiring the removal of the transmission.

Apr 29, 2016 | Cars & Trucks

2 Answers

I have a 1997 chev. lumina the air conditioner works fine for about 100 miles and then it stops cooling what would cause this ?


It could be needing a service to top off the cooling fluid if that isnt it could also be the clutch for the compressor..

Jun 30, 2011 | Chevrolet Lumina Cars & Trucks

1 Answer

How do i get the master clinder off?? i have the lines and the bolts off but i cant pull it lose


Hello there, The slave cylinder for the hydraulic clutch is mounted to the very front of the transmission and is only held in place with two bolts and the hydraulic line, see item #42 (x2) and item #26 in the attached photo.You might as well let the old hydraulic fluid drain completely and fill with fresh fluid when you get done. I would take the hyraulic line off the slave cylinder and put it in a jar. Then open the master cylinder cover and let it gravity drain completely. This will allow you to replace all the parts with a minimal amount of fluid getting all over. Remember, brake fluid damages car paint!The clutch master cylinder is a little bit more tricky in that you have to get under the dash to remove the bolts holding it in. Other than that, you might have to take your old reservoir and attach it to the new master cylinder unless your new one comes with a reservoir. I doubt it will and you don't need it to anyway. Item #37 and #43 are the studs and nuts you will have to release to get the master cylinder off the firewall. Of course pulling the tube to the reservoir and the hydraulic line should be done before removing the mounting nuts. There may be a clip holding the clutch pedal linkage to the clutch master cylinder push rod.Once everything is reassembled and everything is tight, fill the master cylinder reservoir and then loosen the bleeder screw on the slave cylinder. You can depress the clutch pedal to force brake fluid from the master to the slave but if it goes like mine did, once I got the fluid running, it forced out all the air! I put a rubber hose over the bleeder screw and put it in a jar partially filled with brake fluid and kept adding fluid until no more air bubbles came out of the tube. You will know when everything is ok because the clutch pedal doesn't seem to want to come back up unless there is sufficient pressure in the clutch to force it back up. Buy about a quart of brake fluid to flush the lines and leave it topped off. Good luck...

Jan 28, 2011 | 1989 Honda Prelude

2 Answers

I have a 98 cherokee sport. clutch pedal is releasing right off the floor and some times i have no clutch at all i have replaced the clutch master twice and the slave twice, air checked the line. i have...


About the only thing that would be left to check would be that the clutch pedal free travel is correct. It should be about ¼ inch (measured at the pedal rubber) before the push rod that links the pedal arm to the piston in the master cylinder contacts the piston
If free travel is incorrect, adjust by first loosening the locknut on the rod at the end where it attaches to the pedal arm and turning the rod in either direction to obtain the correct free travel. One adjusted retighten locknut.
You appear to have eliminated all the other possibilities, so the only other reasons for your problems could be that the clutch plate is warped and and therefore not disengaging fully or the pressure plate diaphragm spring is faulty and not allowing full disengagement.

Jan 10, 2011 | 1998 Jeep Cherokee

1 Answer

Replaced clutch master cylinder,now have no pressure and air in line. Can't seem to get air out of line or any pressure. please help.


here is a bleeder at the lower clutch cylinder near or on clutch cover (bell housing) that should have a nipple similiar too the ones on brake system brake calipers. This will need to be opened to bleed your clutch hydraulic system as you would brakes.

Nov 29, 2010 | Chevrolet S 10 Cars & Trucks

1 Answer

Ran out of clutch fluid now there is air in line...clutch is all the way to floor...how do i get air out of line...have tried everything


It's a matter of bleeding the clutch system completely. You do need to make sure you don't ,have any leaks at the Clutch Master Cyl. or at the Clutch Slave Cyl or the line running between both, and that you don't have clutch fluid in the drivers compartment just below where the clutch rod comes through the firewall. That would of course mean you have to replace the Clutch Master Cylinder due to internal leakage.

This isn't so unusual, you'll have to pull up on the pedal by hand & pump it a few times to get pressure enough to properly bleed the system, or, you will have to start with bleeding the Clutch Master Cyl. first by loosening the line there & have someone push down the pedal, then before letting up on the pedal, tighten the line to prevent air from being drawn in. Repeat two times to get any air out here.

If your parts and lines are all in good shape then re-fill the resivoir & have someone to pull up on the clutch by hand if needed & then if necessary, use their hand to depress & pull the pedal a few times to try & build some pressure so that you can bleed the Clutch slave cylinder a few times to get all of the air out. After you've finished bleeding the system, the pedal should stay in the up position except when being depressed and you should have consistently even pressure when using the clutch.

good luck.

.


Feb 14, 2010 | 2004 Chevrolet Cavalier

2 Answers

Alfa 156 2.0 TS Clutch pedal has no resistance, and can not select gears with engine running


is the clutch hyraulic? if so, ck fluid level. if its out of fluid you will need to replace the master and slave clutch cylinders.

Oct 02, 2009 | 2000 Alfa Romeo 156

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