Clutch Chatter

When you say new clutch does that mean you resurfaced the flywheel and installed a new pantera specific disk and pressure plate? Did you replace everything ie flywheel, disk, pressure plate, throw out bearing, and pilot bearing? If so and they are meant for a pantera then I would check the brake master and slave cylinders and make sure they are blead correctly.

Presuming that the clutch components are new, and you had the flywheel resurfaced,

1) needs to be Pantera specific
2) Specific Centerforce for Pantera will slip noticeably until it seats. That CAN be 500 miles but not always.
3) just fixed one of these where the pressure plate was not installed correctly over the flywheel dowels and as a result was being held away from the disc and not clamping it.
4) the cast iron hub on the disc is soft and CAN crack easy on installation of the transmission if you don't turn the transmission as you insert the input shaft through the disc hub. I know because I have broken them. An expensive mistake for me.
A broken hub can give you similar symptoms.

Depending on which clutch you have, Mcleod needs at least .035" clearance at release, the Centerforce needs .045".

Take your feeler gauge and measure through the observation port.

Verify that the clutch is physically fully seated at no travel, then what have you got at full travel.

Chatter could simply mean the disc is not being fully clamped into place?

Back off on the slave adjustment until you have the clearances above.

If it still slips, it isn't installed right.

Here's hoping it's something simple.

the only adjustment is on the slave cylinder adjusting trunnion bolt, it can easily be adjusted, try shortening it's length about 1/8 of a inch, try it and continue till the slipping is gone. This is assuming you have the right components and they are installed correctly.

quote:

Originally posted by webbers:
New clutch. Getting a lot of clutch chatter and slipping. No launch. Slips in any gear and high. Too many adjustments. Put rod on bellhousing up and down. The slave rod just pushes it back. If I don't fix this. It will sit for another year.

For a complete clutch adjustment (to eliminate that as a variable) see:
Clutch adjustment instruction