clutch chatter

Have this issue and its driving me nuts.
65 CJ5 4.3V6-T90-D18 Stock F&R axles AA chain clutch linkage Warn OD.

When its cold, everything is fine. Starting off in first is smooth and normal. After driving around 15 min or so it develops some chatter as you engage the clutch and start rolling. It gets worse and after another 15-20 min or so its real annoying to the point you don't want to stop.
But shift into OD and it pulls away smooth in first even if it was real bad out of OD. But I think I started to feel a little while it was in OD today.
If you stand on the brake or put on the parking brake and let out the clutch its ok until you start to roll a bit then it shakes.
I replaced the pressure plate last year for this reason and examined the clutch. The issue has not changed.
Any suggestions. This is the one issue that keeps me from driving my CJ more than just trips around town.

 

I'm thinking disc/pressure palte problem still.
You changed the p/plate, but not the disc ?
could the springs inside the disc be weak/broken ?
besides the obvious of good, clean, flywheel surface, there isn't much left that could be causing the problem.
curious: is the p/plate diaphram type, or finger ? just curious, shouldn't matter.

 

yes, that can make a difference.
I've never had to install one on mine as I've had no problems.
diaphram with 1 piece cable

 

jim,you gave yourself a trashcan!!!! haha now thats funny too.........

 

x2 on the trans mount, just had one that looked just fine but was in two pieces when I pulled it out. Solved all the chatter. 71 with t14 behind 225

 

No chatter cable
Diaphram pressure plate.

I pulled it apart after about 1-2K mi after putting it all together with new parts. New PP. new disk, resurfaced flywheel, new TO bearing and all that. At that time, I still had the swirl marks on the flywheel, the disk looked brand new and I checked thickness all around. the PP diaphram fingers looked a little uneven so I replaced it.
I don't think I've put 3K mi on it since I put it together 4 yrs ago!
Is it possible that the flywheel is warped even though it was resurfaced?

I'll look at the mount and see if I still have that chatter cable still around.

Thanks

 

Any chance you somehow got oil on the clutch disc?

 

I've never had a flywheel be untrue after being resufaced, but I have had both rotors and brake drums that were after being resufaced. The machine shop had a couple bad adaptors they using on the lathe.

 

That was my original thought. But what about how is fine when cold? There is no indication of any slippage nor do I smell anything.
I did wonder if oil from the transmission heated up and seeped out onto the surface.

 

long shot here. but i have had this problem in the past and may be talking greek to some of yall, did they do a fine cut on the flywheel the last pass on the milling machine? fine cut= smooth slow cut, if not there is your problem, it is not smooth enough, its straight but not smooth, if that makes any sense to you, the rough cut will get it straight, but it is not smooth

 

I think I know what you're saying but only as it relates to resurfacing brake drums. I can go either fine or rough, but I would think the rough would make it grabbier and wear the disk quicker.
Anyways, it seemed smooth to me but I don't know how fine or rough the flywheels can be. And again, wouldn't that happen when its cold?