125000511 - E02 CLUTCH SLIPPING
| Results of the tests | ||||||
| 0 | PRELIMINARY CHECKS | All OK | Problems met | Operation | ||
|---|---|---|---|---|---|---|
| Set off from a standstill in 4th gear, gradually releasing the clutch pedal and check the fault: the car does not move and the engine does not stall | Continue to Step 1 | The engine cuts out: the clutch does not slip | ||||
| 1 | CHECK ON CLUTCH LEVER TRAVEL | All OK | Problems met | Operation | ||
| Check, in the engine compartment, that when the clutch pedal is pressed, the clutch control lever on the gearbox carries out its correct travel. | Continue to Step 8 | Incomplete travel of clutch lever on gearbox | Continue to Step 2 | |||
| 2 | CHECK ON CLUTCH PEDAL | All OK | Problems met | Operation | ||
| After disconnecting the clutch pedal from the transmission , check that it travels freely without tight spots or stiffness | Continue to Step 3 | Play or stiffness on clutch pedal | Replace the pedal Op. Op. 3330B26 CLUTCH PEDAL - R+R | |||
| 3 | CHECK SLIDING OF OPERATING CYLINDER PUSHROD | All OK | Problems met | Operation | ||
| Check the travel and return to rest position of the clutch operating cylinder pushrod | Continue to Step 8 | Incomplete travel of clutch control cylinder pushrod | Continue to Step 4 | |||
| 4 | CLUTCH CONTROL LEVER CHECK | All OK | Problems met | Operation | ||
| Release the clutch operating cylinder from the lever and check that it is free | Continue to Step 5 | The lever is not free | Continue to Step 8 | |||
| 5 | CHECK ON CLUTCH CONTROL SYSTEM (ON CAR) | All OK | Problems met | Operation | ||
| Disengage the cylinder from the clutch control lever, although keeping it connected to the hydraulic system.Press the pedal to induce the thrust pressure and check the pushrod travelPush the pushrod back in using a punch, checking that it travels freely | Continue to Step 8 | Malfunction of clutch control cylinder | Remove the clutch operating cylinder Op. Op. 1820B30 SLAVE CYLINDER - R + RContinue to Step 6 | |||
| 6 | CHECK ON CLUTCH CONTROL CYLINDER (WITH GEARBOX REMOVED) | All OK | Problems met | Operation | ||
With the part at the bench, apply pressure (with compressed air) and check the pushrod travel (The test mirrors what was done on the car)
| Continue to Step 7 | Malfunction of clutch control cylinder | Replace the clutch operating cylinder Op. Op. 1820B30 SLAVE CYLINDER - R + R | |||
| 7 | CHECK ON CLUTCH PEDAL TRAVEL | All OK | Problems met | Operation | ||
| With the system disconnected, check that the travel is correct when the pedal is pressed and released | Continue to Step 8 | Malfunction of hydraulic pump | Replace the pump Op. Op. 1820B20 MASTER CYLINDER (PUMP) - R + R | |||
| Hose from clutch reservoir to pump worn or deformed | Replace the pipe Op. Op. 1820B40 HOSE FROM CLUTCH RESERVOIR TO MASTER CYLINDER (PUMP) - R + R | |||||
| Supply hose to clutch operating cylinder worn or deformed | Replace the pipe Op. 1820B48 | |||||
| Hose from clutch cylinder to hydraulic actuator worn or distorted | Replace the pipe Op. 1820B52 | |||||
| 8 | CHECK ON CLUTCH RELEASE LEVER AND BEARING (WITH GEARBOX REMOVED) | All OK | Problems met | Operation | ||
| After removing the gearbox, check that the lever is not stiff (because of dirty or insufficient lubrication) and that the clutch release bearing runs freely in its seating and shows no signs of damage | Continue to Step 9 | The presence of dirt or wear because of insufficient lubrication will not allow the clutch release bearing to slide properly | Replace the faulty or damaged parts | |||
| 9 | CHECK ON CLUTCH ASSEMBLY | All OK | Problems met | Operation | ||
| Visual check on the condition of the clutch assembly, on which there should be no breaks (pressure plate) and/or obvious damage (driven plate) Measurements with gauge as per manual | Continue to Step 10 | Obvious damage of clutch disc and/or breakage of pressure plate | Replace the assembly Op. Op. 1810A24 CLUTCH - R + R WITH GEARBOX REMOVED | |||
| 10 | CHECK ON SPLINED CLUTCH HUB | All OK | Problems met | Operation | ||
Check, in order:
| Continue to Step 11 | Main shaft damaged, hub worn, excessive grease on bushes | Replace hub and/or main shaft | |||
| 11 | FLYWHEEL CONDITION CHECK | All OK | Problems met | Operation | ||
Check the condition of the flywheel. In particular, check:
| Continue to Step 12 | Flywheel damaged | Replace the flywheel Op. Op. 1024B10 ENGINE FLYWHEEL - R + R FOR VERSIONS WITH MANUAL GEARBOX | |||
| 12 | CHECK ON CORRECT OPERATION | All OK | Problems met | Operation | ||
| Check that the fault is no longer present | End of diagnosis | . | ||||
