МУФТА ПРЯМОЙ ПОВЫШАЮЩЕЙ ПЕРЕДАЧИ ПРОВЕРКА

INSPECT OVERDRIVE 1 WAY CLUTCH

1. 

   Hold the O/D direct clutch drum, and turn the input shaft. Check that the input shaft can be turned freely clockwise and locked counterclockwise.

INSPECT OVERDRIVE DIRECT CLUTCH DRUM SUB-ASSEMBLY

1. 

   Using a dial indicator, measure the inside diameter of the clutch drum bushings.

   Maximum inside diameter
   27.11 mm (1.0673 in.)

   If the inside diameter is greater than the maximum, replace the clutch drum.

INSPECT PISTON STROKE OF OVERDRIVE DIRECT CLUTCH

1. 

   Place the oil pump onto the torque converter clutch, and then place the O/D direct clutch assembly onto the oil pump.

2. 

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

   09350-30020

   09350-06120

   Piston stroke
   1.85 to 2.15 mm (0.0728 to 0.0846 in.)

   If the piston stroke is less than the limit, parts may have been assembled incorrectly, so check and reassemble again. If the piston stroke is outside the standard, select another flange.

   Tip:

   There are 8 different thicknesses for the flange.

   Table 1. Flange thickness:

   No.	Thickness	No.	Thickness
   08	3.8 mm (0.150 in.)	04	3.4 mm (0.134 in.)
   07	3.7 mm (0.146 in.)	03	3.3 mm (0.130 in.)
   06	3.6 mm (0.142 in.)	02	3.2 mm (0.126 in.)
   05	3.5 mm (0.138 in.)	01	3.1 mm (0.122 in.)

INSPECT OVERDRIVE DIRECT CLUTCH CLUTCH DISC

1. 

   Check to see if the sliding surfaces of the disc, the plate and the flange are worn or burnt. If necessary, replace them.

   Tip:
   

   • If the lining of the disc is peeled off or discolored, or even if only a part of the printed numbers is corroded, replace all discs.

   • Before assembling new discs, soak them in ATF for at least 15 minutes.

INSPECT OVERDRIVE CLUTCH RETURN SPRING SUB-ASSEMBLY

1. 

   Measure the free length of the spring together with the spring seat.

   Standard free length
   15.8 mm (0.622 in.)

INSPECT OVERDRIVE DIRECT CLUTCH PISTON SUB-ASSEMBLY

1. 

   Check that the check ball is free by shaking the piston.

2. Check that the valve does not have leaks by applying low-pressure compressed air.

INSPECT OVERDRIVE PLANETARY GEAR ASSEMBLY

1. 

   Using a dial indicator, measure the inside diameter of the planetary gear bushing.

   Maximum inside diameter
   11.27 mm (0.4437 in.)

   If the inside diameter is greater than the maximum, replace the planetary gear.

2. 

   Using a feeler gauge, measure the planetary pinion gear thrust clearance.

   Standard clearance
   0.20 to 0.60 mm (0.0079 to 0.0236 in.)

   Maximum clearance
   0.65 mm (0.0256 in.)