Fluid Pump: Service and Repair
DISASSEMBLYWhen disassembling the transaxle it is necessary to inspect the oil pump for wear and damage.
(1) Remove the reaction shaft support bolts.
(2) Remove reaction shaft support from pump housing (Fig. 314).
(3) Remove the pump gears (Fig. 315) and check for wear and damage on pump housing and gears.
(4) Re-install the gears and check clearances.
(5) Measure the clearance between the outer gear and the pump pocket (Fig. 316). Clearance should be 0.045 - 0.141 mm (0.0018 - 0.0056 inch).
(6) Position an appropriate piece of Plastigage across both pump gears.
(7) Align the Plastigage to a flat area on the reaction shaft support housing.
(8) Install the reaction shaft to the pump housing. Tighten the bolts to 27 Nm (20 ft. lbs.).
(9) Remove bolts and carefully separate the housings. Measure the Plastigage following the instructions supplied.
(10) Clearance between outer gear side and the reaction shaft support should be 0.020 - 0.046 mm (0.0008 - 0.0018 inch). Clearance between inner gear side and the reaction shaft support should be 0.02 - 0.046 mm (0.0008 - 0.0018 inch).
ASSEMBLY
(1) Assemble oil pump as shown in (Fig. 317)
(2) Install and torque reaction shaft support-to-oil pump housing bolts to 28 Nm (20 ft. lbs.) torque.