Clutch Issue

Posted by Packard Newbie On 2019/5/5 12:00:14

In reassembling my '39 Six with the new engine, I had the 3-spd tranny rebuilt and the machine shop that did the motor, resurfaced the flywheel. I went over the clutch and pressure plate. They looked fine to me and had been working smoothly prior to disassembly. The throw-out and pilot bearing seemed within spec, so all I did was take the old clutch disc to a brake & clutch house and had them re-sinter new discs onto it and put it all together. Now I am finding a distinct chatter when engaging the clutch from a stopped position. It doesn't see to matter if I rev the car up a little bit and try and feather the engagement or use minimal feathering and let the engine torque 'grab' the drive, I am getting a chatter. Can anyone suggest anything here as a probable cause. I have driven for 50 years and many of my vehicles have been standards, so I am intimately familiar with clutch operation. I am wondering if the new disc and the fresh surface on the flywheel just need to wear in, or if this symptom portends a more serious issue. Any info or input much appreciated. Chris