Tip & How-To about 1986 Audi GT

Hydraulic clutch cylinders

Generally good. My master cylinder is fine at 169,000 miles, but the slave cylinder needed replacing at around 80,000 miles. It's a 15 minute job with the right tools, but if you're doing it yourself, make sure you bleed the hydraulic system afterwards or you'll lose the clutch.

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Parts diagram for clutch slave cylinder nissan D40


It's easy put new master cylinder in place but don't connect rod to clutch pedal or bolt it to bulk head and leave metal solace feed pipe undone , connect fluid feed pipe to cylinder then tilt cylinder so slsve out let faces more down wards then top up fluid pot when fluid runs out slave outlet reconnect slave pipe , bolts master cylinder back in place and connect pedal to it , then undo nipple on slave cylinder let fluid run out freely titghten niplle then pump clutch pedal until it becomes firm job done .
15 minute job .

Nov 07, 2015 | 2007 Nissan Navara 2.5

1 Answer

I just bought a 1985 F350 1 ton truck, it has a hydraulic clutch. The clutch disenguages fine when the truck is warm, but when I drive it 30 miles and every thing heats up the clutch does not disenguage


I'm sure you've checked the fluid level, I would first try bleeding the system to rule out any air pockets. It also could be a fluid bypass situation, especially if the master/slave are old or the cup seals have been exposed to contaminated fluid. The seals can become hardened over time and will not expand along with their respective bore when hot. The cure for that is replacement of the clutch master cylinder and/or slave. The master cylinder is a fairly easy task, but the slave cylinder requires removal of the transmission. Bleeding this system can be frustrating, but you should be able to find plenty of information about the process around the web. Good luck.

Oct 30, 2014 | 1985 Ford F350

1 Answer

Ford Puma 1.7 losing brake fluid


No, you don't have to replace the clutch. The fluid on the passenger side sounds like where your slave cylinder is? But it may be fluid running down the outside of the line to there...because I think the problem is your clutch master cylinder. The fluid on the pedal is the reason. Feel the carpet behind the pedal and all around there for wetness. If it is clutch fluid, your master cylinder will have to come off for repair or replacement. Any time you have fluid there, it's a sure sign of clutch master cylinder failure.
Whether it's the master or the slave cylinder (or both), you should be able to handle it. The master cylkinder is a little more difficult than the slave to replace, but doable. Remove the line fitting, 2 bolts holding cylinder to firewall, and inside the car is the clutch rod from the pedal to the cylinder that needs removing. That's about it. After you get the system free from further leaking, all you need to do is bleed the slave cylinder so your clutch works again.
Good luck.

May 28, 2012 | Ford PUMA Cars & Trucks

3 Answers

clutch pedal sinks to floor and won't take gears. when it does take gear it will shift fine after a few minutes but now won't take gears at all


possible bad slave cylinder on transmission, you do have a hydraulic clutch, have you checked the fluid in it? it might be your problem. hope i helped!!

Aug 16, 2010 | 1998 Honda Prelude

1 Answer

soft clutch 1992 isuzu rodeo


If the seals around the shafts of master and slave are tight, they may be concealing a leak with fluid bypassing the piston seals internal to the two assemblies. Either your master or slave cylinders need to be replaced ot have new seals installed. Once you find the culprit and have installed a replacement, you will have to bleed the lines to evacuate air trap in the lines.

Mar 21, 2009 | 1992 Isuzu Rodeo

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