clutch chatter
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Junior User
Joined: Jul 2008
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clutch chatter
greetings: have a 76 short bed with 360 and should be a 3.8 rear'. just installed a np 435 along with a napa clutch kit, pressure plate,disc,bearing,etc. flywheel looked good. but i get excessive chatter in low and reverse. i expect some in the oldies bot not this much. any thoughts?
Senior User
Joined: Jul 2008
Posts: 157
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From: Mariposa, CA
http://www.summitracing.com/streetandstrip/tech_content.asp?ID={AE711979-A6D0-4802-A262-500D9F59D71D}
Causes of Clutch Chatter or Shudder• Improper break-in procedure• Flywheel not properly resurfaced before installing a new clutch • Flywheel or clutch disc friction surface not parallel with the crank flange surface• Flywheel has severe hard spots or hot spots• Flywheel has an improper step or cup dimension• Defective pressure plate and/or disc• Disc has inadequate or no marcel (not enough cushion between friction facings)• Oil or grease contamination on clutch facings• Worn or damaged clutch linkage• Bent cover assembly and/or clutch disc• Damaged/excessively worn U-joints or CV joints• Misaligned U-joints • Excessive backlash in differential• Excessive driveline angle• Improper gear ratio versus tire diameter• Improperly tuned engine• Worn/damaged engine or transmission mounts• Bad leaf springs, bushings or mounts
Causes of Clutch Chatter or Shudder• Improper break-in procedure• Flywheel not properly resurfaced before installing a new clutch • Flywheel or clutch disc friction surface not parallel with the crank flange surface• Flywheel has severe hard spots or hot spots• Flywheel has an improper step or cup dimension• Defective pressure plate and/or disc• Disc has inadequate or no marcel (not enough cushion between friction facings)• Oil or grease contamination on clutch facings• Worn or damaged clutch linkage• Bent cover assembly and/or clutch disc• Damaged/excessively worn U-joints or CV joints• Misaligned U-joints • Excessive backlash in differential• Excessive driveline angle• Improper gear ratio versus tire diameter• Improperly tuned engine• Worn/damaged engine or transmission mounts• Bad leaf springs, bushings or mounts
