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The clutch is adjusted by two nuts on the rod that comes off the clutch pedal. You can access this by loosening the two nuts and moving the pin towards the front off the car. It's on the drivers-side under the master cylinder. By the way...I live nearby and could help if you have further questions.
I would go under the car and make sure everything is tight. Check the "z" bar and the rest of the linkage.
The clutch adjustment might be all that you need. You want to adjust it out (nuts farther toward the front of the engine). If you get better pedal that might be all you need.
I live in Green Brook, NJ. Right around the corner. Spent two years restoring my 71. Yes, it should be easy to adjust if that's the only problem. If it still doesn't adjust after this then I can suggest some other things to look into. I would suggest getting some jack stands. I have some that I can sell you if you are interested. They are smaller 4,000 pound stands, but I'll sell them real cheap if you want them? Glad to help another local C3 Vette owner!
So, it looks like the nuts are already at the end of the rod.
Any other thoughts?
Do you have a Centerforce clutch? or the stock clutch? this is a real common problem with the centerforce clutch. I have the same problem with mine. When the centerforce clutch is installed you are supposed to use an adjustable clutch fork pivot ball. To change this part you have to pull out the transmission! It is on my list of things "to do". Meanwhile, I push the clutch pedal to the floor when I shift..... MJ
I have to press the clutch so far down that I trip the high beam switch!
Same here! Dollars to donuts your "new" clutch is a Centerforce. :) MJ
I already paid my mechanic to replace my clutch, so sure, I should take it back to him and tell him to do it right, but I probably won't. (maybe we can negotiate a group rate..? )
The clutch is adjusted by two nuts on the rod that comes off the clutch pedal. You can access this by loosening the two nuts and moving the pin towards the front off the car. It's on the drivers-side under the master cylinder. By the way...I live nearby and could help if you have further questions.
to illustrate a bit more I just happened to have a photo of the ragjoint and look what's in front...at the top... the rod with two nuts on it..
BTW I took this photo by removing the side grill behind the front tire well. You can actually afjust it from there as well if you don't want to jack up the car.
Centerforce is just a brand name. They make very popular aftermarket clutches. The clutches come with an orange sheet of instructions that very clearly states that with Chevy bellhousings you must use an adjustable clutch fork pivot ball and they give you the correct measurements. They do not mention that otherwise you will have to push your pedal to the floor to engage your clutch. Yours is like mine - nuts all the way at the end of the rod, no adjustment left, yet clutch pedal must be pressed to the floor. MJ