Can't get clutch to bleed

selfish

New member
Good afternoon all,

I was having some clutch pedal problems where it would maintain pressure if I did a fast shift, but if I was in traffic and having to press the clutch pedal more than once, or leave it in for a few seconds it wouldn't come back up.

I swapped out the DOT 3 fluid because the old stuff was black and gummy but that didn't help. After doing some reading I thought the next culprit would be the slave cylinder, so I changed that, didn't help.

This morning I changed the master cylinder, and now it's worse. I have ZERO pressure in my clutch pedal, even after pumping it by hand maybe 100 times fast. I pulled everything back apart and blew out the lines to make sure there were no clogs.

With the master end re-seated and the slave end unhooked I can see fluid draining through my clear tubing and bubbles coming out of the line. I let that go until the bubbles stopped. I tried to pre-fill the slave with fluid, but couldn't really tell how much I got in there before I hooked it back up. ( I did manage to get about an 1/4 ounce in my eye. Boy can that puppy squirt!)

Everything is back together and I'm trying to bleed it again but I still have zero pressure at the pedal. I checked the travel distance and it's currently all the way out. It just feels like the pump isn't primed, if that makes sense. Right now it's doing a gravity bleed to see if that helps, but I don't see anything coming out of my clear tubing on the bleed valve.

What gives??
 
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Forgot to add that I hooked up the slave without mounting it to the trans to see if the pedal pushed out the pushrod. It did not.
 
So I did this bench bleed and everything looks good. Then connected the line as quickly as possible.

If I pump the clutch pedal 20 times, then manually move the slave pushrod a few times and open the bleed valve only a little fluid comes out.
 

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