Hi - newbie here.
I was thinking i was nearly done replacing the slave cylinder (and the rest of the clutch system at the same time). But I'm having a real bear of a time getting the new slave cylinder filled up (bled). Details below. Any specific advice???? Pretty please with GDMFCherry on top?
89 ranger, 2.9L V6. RWD. This has the mazda M5OD transmission used for a number of years. The slave cylinder blew out. Master cylinder was ok (pressure tight when unclipped). In addition to new slave, i replaced the master cyl, and went ahead and overhauled everything from rear main seal back through the tranny output seal. (i didn't do anything inside the transmission, besides seals and gaskets). I've got it all back together. No bolts left over
I bench bled the master - it's tight (1/8 inch play) - before putting it in. The clutch pedal is rock hard when the line isn't clipped into the slave.
When i clipped the hydraulic clutch line into the slave, and opened the bleed valve, I got steady gravity flow. I don't see bubbles, per se. But i drained two full reservoirs without a problem. But it didn't get full enough on it's own - still no backpressure in the pedal.
I had one of my kids do the pedal-in/open bleed valve/close bleed valve/pedal out cycle a bunch of times. Maybe 15 or 20. I got back pressure in, but not all the way - not enough to get full deflection of clutch. Doesn't want to let me shift into gear, either.
I rotated the transmission by turning the back tires. This caused all the back pressure in the clutch to disappear. Pedal all the way to floor without resistance. And, the clutch master reservoir emptied.
I checked that the master/line is still full (unclipped from slave). There are no leaks in the bell housing - the slave seems intact, not leaking all over the place or anything else odd.
I suspected that maybe the slave (which is concentric) rotated and maybe had a big pocket that filled, exposing another bubble. Doesn't make too much sense, but i went with it and tried a bunch more cycles of clutch pedal depression/bleed valve open/closing. It's not getting much tighter. I've got through a couple reserviors of fluid.
What the heck am i doing wrong?
Does it matter if the front of the truck is slightly higher than the back (the jack stands are a little different)?