Front Engine Plate: Testing and Inspection

FRONT CASE
1. Check the front case for cracks or damage.Replace as necessary.
2. Check the front oil seal for worn or damaged lips.
- Replace if defective.

FRONT CASE AND OIL PUMP COVER
Worn (especially stepped) or damaged surfaces contacting gears.

RELIEF VALVE AND SPRING
1. Check sliding condition of the relief valve inserted in the front case.
2. Inspect for distorted or broken relief valve spring.
Standard value:
Free height: 46.6 mm (1.835 inch).
Load: 6.1 kg/40.1 mm (13.4 lb/1.579 inch).

OIL PUMP GEARS






1. Worn or damaged gear teeth surfaces.






2. Clearance between outer gear and front case.
Outer gear clearance between outer circumference and front case 0.12-0.18mm (0.005-0.007 inch).






3. Check the tip clearance on the pump rotor.
Standard value: 0.025-0.069 mm (0.001-0.003 inch).






4. Check the axial clearance on the outer pump rotor.
Standard value: 0.04-0.087 mm (0.0016-0.0034 inch).