I installeda new clutch master cylinder and have been trying to bleed it for almost 2 days now.. Is there a proper way to bleed this system?

Are both the master and slave cylinders new? I have installed a new brake master cylinder that would not bleed. I tried for several hours. I ended up having to replace it. If you can rebuild them that is an option. But usually those parts are fairly cheap. I suggest Rockauto.com for decent prices on those parts. I would also replace the hose while I was at it.

Ford has special bleeding and blocking instructions for clutch slave. Check manual for proper bleeding requirements. May consider presurre bleeding of master cylinder or use master cyclinder bleeding tubes that fill the resevoir as you bleed the and remove all air in system.

Just because the master is new does not mean it isn't faulty. If you are certain you have bleed all the air from the system, I suspect you got a bad master.

you clutch needs bled better, i'm currently going through this now. If bleed your clutch hydrolics, and after a few days it starts sticking again, you will need a new clutch master cylinder and slaves cylinder. About $70 at autozone. Make sure when you bleed it you get NO AIR not even little bubbles coming out of the bleeder. Bleeding the cluch is much more difficult that bleeding the brakes.

You may not have got all of the air out of the clutch line Try bleeding it again. The sequence is as follows:
1. Start with the Master Cylinder full of fluid. (Don’t forget to check after a few bleeds that it stays above ¼ full so that you don’t introduce more air into the line).
2. Have an assistant pump the clutch pedal 2 or 3 times, then hold down.
3. Loosen bleed nipple to release any air & fluid.
4. Tighten nipple. Assistant then lets clutch pedal return. It may be necessary to manually pull back pedal if it does not return by itself.
5. Wait a few seconds then repeat the sequence from #2.
Bleeding is complete when no more air bubbles are visible in the fluid released from the bleed nipple. It also helps if you have a length of clear plastic tubing that fits securely over the bleed nipple which makes it easier to see if there are any air bubbles.

Hydraulic clutch systems are renown for having airlocks in them once the fluid has drained out.
1.With the Master cylinder full have an assistant pump the clutch pedal acouple of times and keep it on the floor.
2. Release the bleed nipple on the slave cylinder to allow the air out and then tighten.
3. Assistant then allows pedal to come up.They may need to pull back pedal if it does not return by itself.
4.Repeat from #1 until no nore bubbles are seen coming out of the slave cylinder bleed nipple.
If you have a length of suitable size plastic tube that fits neatly over the the slave cylinder bleed nipple , the bubbles will be seen more clearly.
It could thae 8 to 10 pump sequences to clear the air lock. If the clutch still feels spongy, repeat the sequence after a couple of days driving.

Sounds like the seal in the new clutch master cylinder. I've seen that same problem in the hand brake system in small 2 and 4 seat airplanes. ( I'm and aircraft mechanic) The problem is not air in the lines so bleeding won't help. The piston seal is intermittantly failing to seal. That is whty the function can return without any apparent reason as the seal has seated itself. The only cure is to replace or rebuild the master cylinder. ( Yes, even new or rebuilt ones can have a defective or improperly installed piston seal)

Hope this helps

Did you bleed the system? When you replace the the master and/or slave cylinder you have to bleed the system just as you would with brakes. There is a bleed screw on the slave cylinder. Open the bleed screw, have a helper depress and hold the clutch pedal down.Tighten the bleed screw, then release clutch. Repeat this procedure until you have removed all air from the system and the clutch pedal is firm. Keep an eye on the fluid level to avoid sucking air into the system. If you have done this, remember there is a possibility that the master or slave cylinder is defective.

try to vacuum bleed the system at the master most hand vacuum kit come with adapters to fit over the master reservoir otherwise the system may need a new master or you may have a leak

Check your clutch master cylinder for proper levels, inspect clutch sleeve for proper travel and leaks. If no leaks are detected and fluid levels are good, try bleeding the system. If this doesn't work, possible master cylinder or clutch sleeve problem. Hopefully this helps