2751030 - E01 CLUTCH NOT RELEASING CORRECTLY
.| Results of the tests | ||||||
| 0 | PRELIMINARY CHECKS | All OK | Problems met | Operation | ||
|---|---|---|---|---|---|---|
| With the engine idling, check whether the fault is present when all gears are engaged.Eliminate any obstacles preventing the correct travel of the clutch pedal (position of mats, cable interference, etc.). | Continue to Step 1 | The fault occurs only when some gears are engaged. | Coolant leaks detected See table C02 | |||
| 1 | CHECK ON CLUTCH LEVER TRAVEL | All OK | Problems met | Operation | ||
| Check, inside the engine compartment, that when the clutch pedal is pressed, the clutch control lever on the gearbox performs the correct travel | Continue to Step 8 | Incomplete travel of clutch lever on gearbox | Continue to Step 2 | |||
| 2 | VISUAL CHECK FOR LEAKS | All OK | Problems met | Operation | ||
| Carry out a visual inspection of the operating cylinder and pipesCheck that there are no leaks or damage | Continue to Step 3 | Leaks or damage on pipes and/or hydraulic connections | Renew damaged or faulty components. | |||
| 3 | CHECK FOR PRESENCE OF AIR IN CLUTCH HYDRAULIC SYSTEM | All OK | Problems met | Operation | ||
| Adjust the bleed screw on the operating cylinder to check that the system is free of air | Continue to Step 4 | Presence of air in the hydraulic system | Bleed the air Continue to Step 4 | |||
| 4 | CHECK ON CLUTCH CONTROL SYSTEM (ON CAR) | All OK | Problems met | Operation | ||
| Release the cylinder from the clutch control lever, keeping it connected to the hydraulic system. Press the pedal to induce the thrust pressure and check the pushrod travel Push the pushrod back in using a punch, checking that it travels freely | Continue to Step 5 | Malfunction of clutch control cylinder | Remove the clutch operating cylinder Op. 1820B30Continue to Step 5 | |||
| 5 | 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 6 | Malfunction of clutch control cylinder | Replace the clutch operating cylinder Op. 1820B30 | |||
| 6 | 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 7 | Malfunction of hydraulic pump | Replace the pump Op. 1820B20 | |||
| Hose from clutch reservoir to pump worn or deformed | Replace the pipe Op. 1820B40 | |||||
| Supply hose to clutch operating cylinder worn or deformed | Replace the pipe Op. 1820B48 | |||||
| 7 | CHECK ON CLUTCH PEDAL | All OK | Problems met | Operation | ||
| After disconnecting the clutch pedal from the transmission check that it travels freely with no stiffness or tight spots | Continue to Step 8 | Play or stiffness on clutch pedal | Replace the pedal Op. 3330B26 | |||
| 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 caused by insufficient lubrication does not allow the clutch release bearing to slide correctly | 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. 1810A24 | |||
| 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 | CHECK ON FLYWHEEL CONDITION | All OK | Problems met | Operation | ||
Check the condition of the flywheel In particular, check:
| Continue to Step 12 | Flywheel damaged | Replace the flywheel Op. 1024B10 | |||
| 12 | Continue as instructed by the tester | All OK | Problems met | Operation | ||
| Check that the fault is no longer present | End of diagnosis | . | ||||
