B1
NAG1 TRANSMISSIONHOLDING CLUTCH B1
DISASSEMBLY
1. Remove snap-ring (7) (Fig. 154).
2. Remove multiple-disc pack (6) and disc spring (5) from outer multiple-disc carrier.
3. Place the Multi-use Spring Compressor 8900 (8) (Fig. 154) on disc spring (3) and compress the spring until the snap-ring (4) is exposed.
4. Remove snap-ring (4).
5. Remove piston (2) from the outer multiple-disc carrier by carefully blowing compressed air into the bore (A).
ASSEMBLY
1. Install piston (2) (Fig. 155) in outer multiple disc carrier (1). Press in piston using the disc spring (3) and Multi-use Spring Compressor 8900 (8). Place compressor (8) on disc spring (3) and compress until the groove of the snap-ring is exposed
NOTE: Check vulcanized gasket, replace if necessary.
2. Insert snap-ring (4) (Fig. 155).
NOTE: The collar of the snap-ring must point towards the multiple-disc pack. After installing, check snap-ring for correct seat.
3. Insert disc spring (5) and multiple-disc pack (6) in the outer multiple-disc carrier.
4. Insert snap-ring (7).
NOTE: Pay attention to sequence of discs. Place new friction multiple-discs in ATF fluid for one hour before installing.
5. Measure B1 clutch clearance.
a. Mount Pressing Tool 8901 (1) (Fig. 156) on outer multiple disc.
b. Using a lever press (Fig. 156), compress pressing tool as far as the stop (then the marking ring is still visible).
c. Using a feeler gauge, determine the play "L" (Fig. 157) at three points between the snap-ring (6) and outer multiple-disc (4). During the measurement, the snap-ring (6) must contact the upper bearing surface of the groove in the outer multiple disc carrier (5). The correct clearance is 2.3 - 2.7 mm (0.091 - 0.106 inch) for 2 friction disc versions, 2.7 - 3.1 mm (0.106 - 0.122 inch) for 3 disc versions, and 3.0 - 3.4 mm (0.118 - 0.134 inch) for 4 disc versions.
d. Adjust with snap-ring (6), if necessary. Snap rings are available in thicknesses of 2.6 mm (0.102 inch), 2.9 mm (0.114 inch), 3.2 mm (0.126 inch), 3.5 mm (0.138 inch), 3.8 mm (0.150 inch), and 4.1 mm (0.162 inch).