The correct answer is:
b) If the friction surface of the flywheel is grooved, it should be resurfaced before reinstalling.
Explanation:
1. When a hydraulic clutch slave cylinder is replaced, the system must be bled to remove air from the hydraulic system, ensuring proper operation.
2. A clutch disc that is contaminated with oil might cause slippage because the oil reduces the friction between the disc and the pressure plate.
3. A worn throwout bearing will cause the clutch pedal to be much higher than normal as it affects the engagement and disengagement of the clutch.
In contrast, the statement that says if the friction surface of the flywheel is grooved, it should be resurfaced before reinstalling is not entirely accurate. In some cases, minor grooving can be acceptable without the need for resurfacing, as long as the grooves are shallow and within a certain tolerance level. Resurfacing is typically recommended for more significant grooving to ensure proper clutch engagement and longevity.
