Shudder in 1st and 2nd gear

[tadel001]

This is my week to take care of all of my nagging issues on the car. I have a 76 911s with a 79 3.0 RoW. When I begin releasing the clutch in first gear, I get a strong shudder. Happens also in 2nd gear. The car seems to do it significantly lease after it warms out but I could be imagining it. If I rev higher as I let out the clutch, this significantly reduces the shudder. In fact, it will almost eliminate it. I have tried adjusting the clutch cable a few times in varying directions.

This is a stock transmission from the 7.6 2.7 attached to the 3.0 RoW. Any ideas short of dropping the engine and separating the transmission and engine?

[pete3799]

New motor and trans. mounts will help.

[Peter Zimmermann]

There are many possible reasons for your problem (clutch cable/linkage/pedal issues, engine install related issues, etc.), but the most common cause of clutch chatter, on an otherwise sound car (mechanically), is oil contamination on the clutch. It is possible that the main shaft seal, at the throw out bearing guide tube, has leaked transmission fluid onto the clutch disc. Of course, this is just a guess because you have not supplied many "parts" to the puzzle...
1. How many miles on the clutch?
2. Is the clutch cable the 1975 style with the 90 degree bend at the trans, or...
3. I the diff end of the cable straight?
4. How many miles on the clutch cable?
5. If the cable's been replaced, does the bowden tube go over, or under, the throttle bell crank lever on the side of the trans?

Etc., etc., etc...

[LUFTMAN]

flywheel problem or clutch disc.does flywheel have hot spots or not flat? must r+i engine and gearbox to checkout.