Forward Clutch

U241E AUTOMATIC TRANSAXLE: FORWARD CLUTCH: INSPECTION

1. INSPECT PACK CLEARANCE OF FORWARD CLUTCH

(a) Install the forward clutch on the oil pump.





NOTICE:
Be careful not to damage the oil seal ring of oil pump.

(b) Using a dial indicator, measure the forward clutch piston stroke while applying and releasing compressed air (392 kPa, 4.0 kgf/cm2, 57 psi).

Standard piston stroke:

1.74 to 2.08 mm (0.0685 to 0.0819 in.)

(c) If the piston stroke is less than the minimum, the parts may have been assembled incorrectly. Check and reassemble again.

If the clearance is not as specified, select another flange.

HINT
There are 5 different flanges in thickness.

Standard flange thickness:





2. INSPECT FORWARD MULTIPLE DISC CLUTCH DISC

(a) Check to see if the sliding surface of the disc, plate and flange are worn or burnt.





(b) If necessary, replace them.

HINT
* If the lining of the disc is peeling off or discolored, replace all discs.
* Before assembling new discs, soak them in ATF for at least 15 minutes.
3. INSPECT FORWARD CLUTCH RETURN SPRING SUB-ASSEMBLY

(a) Using a vernier caliper, measure the free length of the spring together with the spring seat.





Standard free length:

28.23 mm (1.1114 in.)

4. INSPECT FORWARD CLUTCH PISTON SUB-ASSEMBLY

(a) Shake the piston to check that the check ball is not stuck.





(b) Check that the value does not leak when applying low compressed air (392 kPa, 4.0 kgf/cm2, 57 psi).