toyota Workshop Repair Guides

Toyota Workshop Service and Repair Manuals

Fluid Pump, A/T|Testing and Inspection|Page 1593 > < Fluid Pump, A/T|Testing and Inspection|Page 1591
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If the body clearance is greater than the maximum, replace the oil pump body subassembly.

2. CHECK TIP CLEARANCE OF DRIVEN GEAR

Measure between the driven gear teeth and the crescent- shaped part of the pump body.

Standard tip clearance: 0.11 - 0.14 mm (0.0043 - 0.0055 in.)
Maximum tip clearance: 0.3 mm (0.012 in.)

If the tip clearance is greater than the maximum, replace the oil pump body subassembly.

3. CHECK SIDE CLEARANCE OF BOTH GEARS

Using a steel straightedge and a feeler gauge, measure the side clearance of both gears.

Standard side clearance: 0.02 - 0.05 mm (0.0008 - 0.0020 in.)
Maximum side clearance: 0.1 mm (0.004 in.)

                     

There are three different thicknesses for drive and driven gears.

Drive and driven gear thickness:

Mark   Thickness

A     

9.440 - 9.456 mm (0.3717 - 0.3723 in.)

B     

9.456 - 9.474 mm (0.3723 - 0.3730 in.)

C     

9.474 - 9.490 mm (0.3730 - 0.3736 in.)

If the thickest gear can not make the side clearance within standard specification, replace the oil pump body subassembly.

Fluid Pump, A/T|Testing and Inspection|Page 1593 > < Fluid Pump, A/T|Testing and Inspection|Page 1591