1982 RX7 Manual Clutch Spring?
 

I have no issues with my clutch, works fine, doesn't slip. But there is no feeling of any pressure when pushing the clutch - miracles of hydraulic mechanical advantage. Isn't there supposed to be a return spring to provide feel to the pedal?

Thanks,
Scott

never known of any in my experiences.

check the fluid level in the resivour. then check for leaks form the slave cylinder and the clutch master cylinder. if there's no pressure then you have a leak and air has been introduced into the system.

If he had air in the system the clutch would not work. Lol. The pressure that u feel in the system is from the pressure plate itelf. Probly means time for a new pressure plate. As that means the inadequent force pushing on the clutch disc itself

Guys, his clutch is working/gripping fine. Probably a soft stock pressure plate. Can we trade? My pressure plate is way too heavy for me, even after removing my return spring. Gotta swap to a slightly softer one today to save wear and tear on my left hip. It's like squatting my entire body weight on my left leg every time I press the pedal. No thanks.

i think he's rather vague on the issue...no feeling of return pressure sounds like a hydraulic issue to me. clutch not slipping sounds like a good pressure plate and disc.

FWIW, I've got a well-used stock PP in my car with years of use on it, but I have no difficulty feeling the spring feedback. A couple of hours in LA traffic will give your calf a good workout, even with a stock setup.

Jeff, have to admit I got a good chuckle on the left hip. Corvettes I have driven definitely did that to me.

But, Yes, sorry took so long to get back. Previous owner put a "new" centerforce clutch in it somewhere around 20K miles ago. Clutch does not slip, function is just fine (usually they slip in 5th gear going up hills when they go bad).

The only issue is that there is virtually no force to push against and I suspect that the return spring provides some of the force - very similar to aircraft when flying hydraulic systems, springs are used to provide feel (unless you are dealing with an older Boeing :) ).

The hydraulic system is just fine - all replaced when I started this car 4 years ago.

Thanks,
Scott

Only springs in the entire clutch system are:

1: Pressure plate
2: clutch hub springs (no effect on pedal feel, and the centerforce might not even have them) and inter-face wave spring (likewise not an issue here, and probably not used on a CF clutch); part of the clutch disk
3: Master and slave cylinder piston return springs (tiny, not really big enough to affect pedal feel)
4: Clutch pedal return spring, which keeps the pedal from flopping around. Likewise pretty small (identical to the one on the brake pedal.)

The clutch return spring doesn't give any resistance. It's a very weak spring. You might try adjusting the catch point of the clutch where the plunger shaft is on the pedal.

I noticed a very small difference when I removed my return spring to try to get the darn SS pressure plate to lighten up a little. Then I went with a centerforce and all seems well. Gotta still test drive it after completing the rest of the swap... once it stops raining.

I've driven a TII with an upgraded stage 2 clutch and hated the amount of pressure it took to depress the pedal. In the widebody I have a stage 3 ceramic/Kevlar clutch that's just a hair stiffer than stock, love it.

The amount of pedal pressure is determined by the stiffness of the pressure plate. Organic clutch discs require more clamping force from the pressure plate than the type I have. Mine was 300 on eBay, billy was selling the same one for 400. It's one of the best clutches I've ever owned, including the 11" Schieffer I had in my Road Runner many many years ago.

Thanks guys, I guess it will just be feeble :)
I may try to find a stronger return spring (or check to see that it is there).

Scott