Clutch air gap

When you push the clutch pedal down, how much does the pressure plate (typically) move away from the disc?

dk

 

Depends on pressure plate type, coil spring or belleville washer?

 

There should be room to shove a knife blade or putty knife between the clutch plate and pressure plate or clutch plate and flywheel.

When cars sit around too long the clutch can stick together and not release. In that case if you can open up an access plate on the bottom of the bellhousing and get someone to step on the clutch, or prop it down with a stick, you can slide a knife or putty knife up in there and pry them apart. Once they are separated and you use the clutch a couple of times everything gets freed up.

The point is, I have had to do this a few times and it seems there is always just enough room for a knife blade or thin putty knife.

 

I've always wondered about that. Good question and good answer Rusty.

 

From the tech information I have on hand, about .030"-.040" total should be sufficient for most Long/B&B/diaphragm clutches, as long as there is no gear grinding while shifting.

 

When I raced with a Mcleod clutch, I was told .060-.080 to stop the car from rolling thru the lights. It worked...

 

Realize that too much release clearance is not good either, especially with as diaphragm pressure plate.

 

.040-.050 is normal for high performance street/strip type car......

 

It's a 3 finger coil spring type.
I had no idea if it was 1/32 or 1/8"

Thanks for the reply's.......I learned something new.

 

Business card thickness on both sides.

 

I start with .065 with my Ram adj. p.p. and sintered iron disc.