How do I bleed the master clutch cylinder

Gravity works. just open the bleeder screw on the slave cylinder and let fluid drain for about 30 seconds

GRAVITY BLEEDING CLUTCH HYDRAULIC CIRCUIT

1. Verify fluid level in brake master cylinder. Top off with DOT 3 brake fluid as necessary. Leave cap off.

2. Raise vehicle on hoist.

3. Remove bleed port protective cap and install suitable size and length of clear hose (4) to monitor and divert fluid into suitable container.

4. Open up the bleed circuit by turning the thumb screw (3) counter clockwise this will start the air purge and fluid fill process.

5. Lower vehicle, but only enough to gain access to and fill the brake master cylinder. NOTE: Do not allow clutch master cylinder to run dry while fluid exits bleed port.

6. Top off brake master cylinder fluid level while air is purged and fluid drains from bleed port. Continue this until no air bubbles are seen and a solid column of fluid exists.

7. Close hydraulic bleed circuit, remove drain hose and replace dust cap on bleed port.

8. From driver's seat, actuate clutch pedal 60-100 times.

9. Apply parking brake. Start engine and verify clutch operation and pedal feel. If pedal feels fine and clutch operates as designed, stop here. If pedal still feels spongy or clutch does not fully disengage, excessive air is still trapped within the system, most likely at the master cylinder.

10. Top off brake master cylinder fluid level with DOT 3 brake fluid as necessary.

POWER BLEEDING CLUTCH HYDRAULIC CIRCUIT

1. Remove reservoir cap and connect bleeder cap to reservoir. NOTE: Use Bleeder Cap/Modified reservoir cap adapter Snap-on #901-059 or equivalent.

2. Connect service filling machine to bleeder cap. NOTE: Use Service Filling Machine/Brake power bleeder Brake power bleeder or equivalent.

3. Service filling machine should be pressurized to at least 2.5 bar (36 PSI).

4. Remove dust cap from bleeder valve and connect the transparent bleeder hose to bleeder valve.

5. Place the other end of hose in the bleeder container to capture the used fluid. The end of the hose MUST be submerged in the DOT 3 brake fluid.

NOTE: Use Bleeder Container To capture hydraulic fluid and Transparent Bleeder Hose To route fluid to container.

6. Turn on the service filling machine.

7. Crack open the bleeder valve (3).

8. Allow fluid to flow out of bleed port until no more air bubbles can be seen in the transparent bleeder hose.

9. Once fluid is free of air bubbles; make 15 quick actuations between clutch pedal stop positions.

10. Close the bleeder valve and disconnect the service filling machine.

11. To remove remaining air, actuate pedal 10 times slowly between pedal stop positions.

12. Check clutch pedal to see if vehicle is properly bled.

13. If vehicle is not properly bled, repeat procedure.

14. Remove bleeder cap from reservoir and replace reservoir cap.

15. Disconnect transparent bleeder hose from bleeder valve and replace dust cap.

Hi Tim,got a 85 Nissan 4x4,your problem could be your clutch slave cylinder is bad and not holding pressure,check your clutch master cylinder,problaly about empty,here's a link to the bad part,it's easy to replace,it's bolted on side of transmission with 2 bolts,check and see if fluid is leaking.You will have to bleed after you install,az. has bleeder kits.To bleed,best to have someone pump clutch pedal a few times and hold to floor,get bleeder tube with connection and install on blleeder screw,add brake fluid to bleeder container and stick higher up than bleeder screw and open to let air out,do this until no air comes out,don't let clutch master to get low,keep full.

are you trying to bleed the clutch? if so ther bleeder valve is on the slave cylinder bolted to the bell housing on the tranny.

FIRST REMOVE ALL OLD FLUID FROM CLUTCH MASTER CYLINDER YOU CAN USE A SIPHON YOU HAND PUMP.AUTO PARTS STORES SELLS THE HAND PUMP SIPHONS. THEY DONT COST MUCH AND KEEP FROM MAKING A MESS.SIPHON OUT MUCH AS YOU CAN THE OLD FLUID IN THE CLUTCH MASTER CYLINDER.THEN POUR IN THE NEW FLUID DOT 3 BRAKE FLUID IN CLUTCH MASTER CYLINDER.OKAY YOU NEED A HELPER.LOCATE THE SLAVE CYLINDER.REMOVE SLAVE CYLINDER HOLD SLAVE CYLINDER 45 DEGREES WITH BLEEDER SCREW LOCATED AT THE HIGHEST POINT.HAVE A SMALL DRAIN PAN UNDER SLAVE CYLINDER.HAVE HELPER FULLY DEPRESS AND HOLD THE CLUTCH PEDAL THEN OPEN BLEED SCREW.CLOSE THE BLEED SCREW AND HAVE HELPER RELEASE THE CLUTCH PEDAL.REPEAT THIS PROCESS UNTIL ALL THE OLD BRAKE FLUID AND AIR BUBBLES LEAVES THE HYDRALIC SYSTEM AND WHEN YOU CAN SEE GOOD STREAM CLEAN FLUID NO BUBBLES YOU HAVE GOOD SOLID CLUTCH ALL IS GOOD.MAKE SURE THROUGH THE BLEEDING PROCESS YOU DONT LET CLUTCH MASTER CYLINDER RUN DRY OR YOU WILL HAVE TO START OVER.KEEP CLUTCH MASTER CYLINER FULL BRAKE FLUID WHILE DOING THE WHOLE BLEEDING AND FLUSHING PROCESS.

The bleeder screw is located on the transmission slave cylinder housing. (Follow the hose from the clutch master cylinder) This is not a bolt, but a bleeder screw that has a fluid passage through the center to allow fluid to exit during bleeding.
An assistant needs to pump the clutch, then hold the pedal to the floor. Open bleed screw, tighten and repeat. Good luck

i will assume that you are referring to the clutch master cylinder , you bleed the system at the clutch slave cylinder located on the transmission bellhousing

ON A 2000 MAX 6 CYLINDER HAS CLUTCH MASTER CYLINDER AND SLAVE CYLINDER, CHECK FLUID LEVEL AND BLEED CLUTCH SYSTEM AT SLAVE CYLINDER BLEEDER. HAVE NOT HEAR OF CABLE CLUTCH SYSTEM. ONLY HYDO.& LINKAGE. GOOD LUCK

yes, Briong the pedal up where it belongs, then open an fill your master cylider. Then go below and open the bleeder intil the fluid runs/drips steady and free of any bubbles. Do not pump the pedal. When only fluid comes out, tighten/close the bleeder and give it a try. Good Luck. If peal dives again, replace the master cylinder.

It will take two people, one to push clutch peddel, and one to open bleeder, same as bleeding breaks, the person pushing peddel pumps peddel a few times and the last time holds to floor, other person opens bleeder to let air out, and then closes bleeder while peedel is still depressed, do this process over and over untill you get clutch or a steady stream of fluid with no air , while keeping an eye on fluid level in resavor.