Yes, and just re-checked the manual, it says ATF
I have no way to see in there or measure the clearance in the
clutch with the pedal depressed. I think it's to tight (of a space) to get anything in there to check it. Before I take it back apart, I will try to reach up in there and check it...
I put more wave in the disc by carefully bending it, it bends easily.
The clutch repair shop told me that the discs have the wave to help them spring away from the flywheel. And they said over time, the disc will go flat from setting with the pressure plate squeezing them.....their words not mine.
And seeing how more wave did not help, (it may have hurt) it is possible the clutch people are not so well informed?
It had a bit of wave.....and it dragged a bit too.....now with more wave it drags MORE....
It is a ball bearing pilot bearing and it is very free.
I can install the shaft in the clutch and lay it in the trans housing and it will slip back and forth a bit....that is how 'free' the shaft is...
I think the disc needs to come back out and be flattened....perfectly flat. No wave.....no wobble
Are you sure that the oil spec is ATF? I've never had a wet clutch apart on a Yale, but on older Cat's & Clarks it's usually engine or hydraulic oil being sprayed. How much clearance does the disc have when the clutch pedal is depressed?
You say that it's worse since you've had it apart-how much wave did you put into the disc & how did you do it? The wave is there to help dampen engagement- not to force a seperation. Did you check the pilot bearing (or bushing) for clearance on the input shaft? On rare occasions with pilot bushings, I've had to have the trans in nuetral & set the parking brake & let the engine run for a while to get a bushing a little looser.
For sure not backwards.....
Wish I could even look in at the disc.
The whole top of the trans is the cover and there is no way to
see up in that area...
The clutch rebuilder did say they could line the disc with dry
friction material and unhook the pump, drain the sump, and run it dry.
My key aggravation is that it could NOT have been this way when sold new.
Here's some thoughts about this. Any chance the disc is in backwards and the center hub is rubbing on something? Can you look down in, press the clutch petal, and slide the disc back and forth? If all is good there, maybe try filling, or over filling, the transmission with the thickest oil you can get to make it "drag" more than the clutch. If it's worse now that you modified the disc you may need a new one and maybe just put a dry clutch in it and don't add oil.