Hooked_on_HP
Veteran Member
I think you have the answer to the problem. It is the only answer so far that makes sence. Now all he has to do is find a disc that isn't made that way. Good job.
Bill
Bill
Bill and Jones6780,
Sorry, but I disagree that this is the problem and solution. It does complicate the whole issue.
To my mind, the problem is that the pressure plates age and take more and more deflection of the fingers to disengage the disk as time goes on.
I agree that finding a 'hard' clutch disk will give me about .020" or so more margin at the plate-disk interface, but I am seeing these pressure plates age to the point where they would need much more than that to disengage.
Thanks !
Terry
Sorry, but I disagree that this is the problem and solution. It does complicate the whole issue.
To my mind, the problem is that the pressure plates age and take more and more deflection of the fingers to disengage the disk as time goes on.
I agree that finding a 'hard' clutch disk will give me about .020" or so more margin at the plate-disk interface, but I am seeing these pressure plates age to the point where they would need much more than that to disengage.
Thanks !
Terry
jones6780
Gold Member
- Joined
- Nov 30, 2008
- Messages
- 417
- Location
- Lizella, Ga.
- Tractor
- Ford 1700 4wheel drive, Yazoo/Kees Max2 Zero Turn
I have never, in 40 years, seen a pressure plate fail except for bad release bearings wearing the fingers, slipping the clutch and wearing the face, or too much RPM. I can't see the fingers on yours so it might be. Purchase the next one from a different company/brand.
Russell
Russell
JC-jetro
Elite Member
This might relate or not to the problem here. 27 years ago while in college I did a clutch job on a friend's Honda Accord. I got a cheapo reman pressure plate/ clutch disk combo from an outfit. The reman plate was resurfaced so much to the point where with the clutch pedal out the clutch assembly could not transfer any torque.
Is the pressure plate thickness within the specs?
If I had a presence of mind then, probably I could have turned the clutch disk by hand using the aligning tool
.
JC,
Is the pressure plate thickness within the specs?
If I had a presence of mind then, probably I could have turned the clutch disk by hand using the aligning tool
.JC,
Folks,
For anyone still following the thread, or who might pick it up looking for a similar problem, I think I DO finally have an answer to what is going on.
I have put another 100 hrs or so on the clutch I did earlier in this thread, and it was starting to do the same thing (running out of adjust to stop dragging of the clutch). I found a place that rebuilds clutches (KY clutch) and sent them one of the previous pressure plates and disks to see if they could modify one or both to make more 'room' in the adjustment (like turning down the clutch disk).
They just called and said the pressure plate was junk. The rivets that hold the clutch diaphragm spring and the assembly together are 'T' shaped. Under the 'T' is one of the pivot rings for the spring. He said the rivets were 1/2 way worn through where the ring contacts the 'T'. That would make a huge difference in the 'throw' of the pressure plate itself.
They are putting new rivets in and taking .010 or so off the plate to give the extra room I wanted in the adjust. Apparently, the rivets were too soft for this application or something. I would have thought there would be essentially no movement of the ring relative to the rivet (because the spring pivots on the opposite side of the ring), but there must have been enough scrubbing to wear the rivets. I put one of my other old plates in a vice and compressed the plate a bit, and could see where the wear was happening on the rivets.
I NEVER would have thought of this as the cause of the problem!
Thanks again for all the thought you all have put into this!
Terry
For anyone still following the thread, or who might pick it up looking for a similar problem, I think I DO finally have an answer to what is going on.
I have put another 100 hrs or so on the clutch I did earlier in this thread, and it was starting to do the same thing (running out of adjust to stop dragging of the clutch). I found a place that rebuilds clutches (KY clutch) and sent them one of the previous pressure plates and disks to see if they could modify one or both to make more 'room' in the adjustment (like turning down the clutch disk).
They just called and said the pressure plate was junk. The rivets that hold the clutch diaphragm spring and the assembly together are 'T' shaped. Under the 'T' is one of the pivot rings for the spring. He said the rivets were 1/2 way worn through where the ring contacts the 'T'. That would make a huge difference in the 'throw' of the pressure plate itself.
They are putting new rivets in and taking .010 or so off the plate to give the extra room I wanted in the adjust. Apparently, the rivets were too soft for this application or something. I would have thought there would be essentially no movement of the ring relative to the rivet (because the spring pivots on the opposite side of the ring), but there must have been enough scrubbing to wear the rivets. I put one of my other old plates in a vice and compressed the plate a bit, and could see where the wear was happening on the rivets.
I NEVER would have thought of this as the cause of the problem!
Thanks again for all the thought you all have put into this!
Terry
sweep
Gold Member
Translation....China
afraid not; these are Japanese made tractors and the part was made in Japan.