Test b
- Make
- Alfa Romeo
- Model
- 155 Factory Service Manual
- Year
- 1992–1998
- Section
- Clutch does not disengage properly › Test b
ClutchTest b
TEST B
CLUTCH DOES NOT DISENGAGE PROPERLY
TEST B
| TEST PROCEDURE | RESULT | CORRECTIVE ACTION |
|---|---|---|
| B1 CHECK FOR FLUID LEAKAGE - Visually check for fluid leakage from clutch actuating cylinder, pump or lines |
OK NOT OK |
Carry out step B2 Replace defective parts |
| B2 CHECK PUMP INTERNAL LEAKAGE - Slowly depress clutch pedal and at the same time check that fluid does not flow back into the reservoir - Start the engine, depress clutch pedal, engage first gear and hold the clutch pedal down; wait for about 30 seconds and check that the vehicle does not move |
OK NOT OK |
Carry out step B3 Replace clutch pump |
| B3 CHECK FOR TRAPPED AIR - Check for presence of trapped air in the hydraulic circuit by verifying that the clutch control lever disengagement travel is with the prescribed limits |
OK NOT OK |
Carry out step B4 Purge trapped air from the circuit |
| B4 CHECK SPLINED COUPLING - Check for dirt, rust or dents on splines of clutch disk hub and of gearbox main shaft |
OK NOT OK |
Carry out step B5 Remove any damage and clean the hub and main-shaft splines; replace clutch disk if necessary |
| B5 CHECK CLUTCH DISK - Check that the clutch disk is not distorted |
OK NOT OK |
Carry out step B6 Replace clutch disk |
| B6 CHECK DIAPHRAGM SPRING - Check that the disk pressure plate diaphragm spring is not damaged |
NOT OK | Replace disk pressure plate |
Parts & tools for this job For 1992 Alfa Romeo 155
- PARTClutch kitSearch: Alfa Romeo 155 1992 clutch kit
- TOOLClutch alignment toolSearch: clutch alignment tool
- FLUIDGear oilSearch: Alfa Romeo 155 manual gearbox oil
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