Clutch setup? jerks with the engine

Much easier solution than clutch. Some times we luck out. Know if I could just figure out my 67 Corvette clutch noise!!!
CORDially Mike

My Cord shook alot when taking off
It turned out to be the Transmission mount bolts where loose

I would also recommend Ft. Wayne Clutch.
CORDially Mike

This happend to me.  I bought a Cord with bad clutch chatter.  Sent the clutch and pressure plate to a clutch shop, they rebuilt the pressure plat and relined the disk, still chattered.  Next go around we resurfaced the flywheel (not  burned or checked) used a different pressure plate from the clutch rebuilder and balanced both together, still the chatter.  Next sent the Clutch disk, clutch pressure plate and flywheel to Ft Wayne Clutch.  They responded 3 days later saying the problem was in that the clutch disk did not have the flat springs under the clutch lining.  That fixed the chatter in the car.  Before you go through what I did check the flat springs.

Here is some info on the Cord clutch. This should help making sure it is set up properly.

thanks for the advice, the clutch was completely renovated. the only thing that didn't work is the flywheel, but it has no signs of tanning. Have we thought of a more radical option and what if there is no other pressure plate? not a spring but a leaf spring? is there any substitute? and I still have a question if anyone has instructions for adjusting the clutch.

The clutch plate can only be fitted one way . The internal spline which mates with the gearbox drive shaft has a long side and short side. The short side faces the flywheel. If the plate is the wrong way round the friction material will not sit against the flywheel.

The proper term for renewing the flywheel is called "resurfacing". If you use this term shops will know what you mean. The same should be done on the preasure plate along with replacing the springs and adjust the arms. All these procedures is best done by a shop that does clutches as a specialty. Is the clutch disc in backwards? There is a right and wrong way to install the disc!
CORDially MIke

thank you, I will find out exactly what kind of clutch it is and I will also send photos. otherwise my email is [email protected]

Hello, thank you very much for your kindness and help. I will gradually try everything recommended and see if the clutch stops jerking the engine.

Hi Stanislav,
What specs were the clutch rebuilt to? The Cord uses a Long 10CF clutch. This clutch was also used in a Ford trucks and some other cars but was built to different spec.s. What is your email and I'll send you how to set up the clutch.

You also mention the pressure plate was straightened. That raises a lot of questions, How did it get warped to begin with? Was it ground back to proper straightness? Were all hard spots removed?

Have you checked the engine and transmission mounts? Also the CV joints. They would also cause similar problems.
Jim

As I already mentioned. The flywheel is always ground for a resurfacing during the clutch replacement. The surface most always has "spots" on it called hot spots. Those need to be ground out or you have a horrible mess with that surface grabbing as you mentioned. The flywheel MUST be removed for proper reconditioning. Its not expensive to grind the flywheel. But in our Cord cars you must remove so very much material to reach this area. The new club transmission repair book clearly describes how everything comes apart safely. I removed my engine n trans when I was in my very early 20's. I still have not set the engine and trans back in the car. Hope this guides you to a pleasant ending...


Gary Parsons

what do you mean by resurfacing the flywheel. isn't if just the metal surface of the flywheel? it should be bare metal for clutch to grab to I thought. 

Robert L Hauser 

Sounds like the flywheel has hot spots on it. You did not mention if the flywheel was removed and resurfaced along with the pressure plate. Please tell this forum if the flywheel was removed for resurfacing.


Gary Parsons

Hi
I have already been given excellent advice on the forum.
I wanted to ask if you have information about the car's clutch. currently our clutch jerks with the engine and jumps a lot before it catches. we have a newly lined clutch, overall it has undergone a renovation and straightening of the pressure plate and it still jumps. We are at a loss and we don't know what it could be because we don't have any exact values ​​for the clutch setting. if there is such a thing.
thank you very much for the advice
Stanislav