Initiator:

Slipping Clutch/Shudder or Judder

Cause:

1. Rear main engine seal failure/fatigue
2. Front gearbox seal failure/fatigue
3. Excessive lubrication on the clutch disc splines/gearbox nose cone/release bearing

Effect:

Oil or Grease contamination on the clutch disc linings

Action:

1. Replace the clutch disc/kit
2. Inspect the rear main seal for leaking – replace if necessary
3. Inspect front gearbox seal – replace if necessary
4. Inspect any other engine oil leaks which could compromise the gearbox bellhousing (i.e sump gasket, rocker cover etc)
5. Remove any excessive lubrication from the clutch components once they have been checked for compatibility.

» Link to Guide

Indicator:

Clutch Slipping/Shudder or Judder

Cause:

1. Excessive use of grease when lubricating the components on assembly.

Effect:

Clutch disc linings are contaminated with grease/oil

Action:

1. Replace clutch disc
2. Remove any excess grease from the clutch components after they have been checked for compatibility

» Link to Guide

Indicator:

Clutch Shudder/Judder

Cause:

1. Un-machined flywheel (not even/warped)

2. Poor flywheel grinding practices (machined on a lathe)

Effect:

Vehicle vibrates when the clutch is released

Action:

1. Surface grind the flywheel
2. Check the machining surfaces are true and parallel

» Link to Guide