2. MEASURE TIP CLEARANCE
Using a thickness gauge, measure the clearance be–
tween both of the gear tips and crescent.
Standard clearance:
Driven 0.15–0.21 mm (0.0059–0.0083 in.)
Drive 0.22–0.25 mm (0.0087–0.0098 in.)
Maximum clearance: 0.3 mm (0.012 in.)
If the clearance is greater than maximum, replace the
gears and/or body.
3. MEASURE SIDE CLEARANCE
Using a thickness gauge and flat block, measure the
side clearance as shown.
Standard clearance: 0.03–0.09 mm
(0.00 12 – 0.0035 in.)
Maximum clearance: 0.15 mm (0.006 in.)
If the clearance is greater than maximum, replace the
gears and/or body.
PRESSURE REGULATOR INSPECTION
Coat the valve piston with engine oil and check that it
falls smoothly into the valve hole by its own weight.
If the valve does not fall smoothly, replace the valve
and/or oil pump assembly.
FRONT OIL SEAL REPLACEMENT
1. REMOVE OIL SEAL
(a) Remove the drive and driven gears.
(6) Using a screwdriver, remove the oil seal.
If the clearance is greater than maximum, replace the
gear and/or body.
–ENGINE LUBRICATION SYSTEM
EG1–240
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