Suzuki GA413, Service Manual

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INSPECTION
Check oil seal lip for fault or other damage. Replace as neces-
sary. Apply engine oil to oil seal lip before installing.
NOTE:
When installing oil seal, press-fit it till its end face is flush
with oil pump case end face.
1. Oil seal
2. Oil pump case
Check outer and inner rotors, rotor plate, and oil pump case for
excessive wear or damage.
1. Outer rotor
2. Inner rotor
MEASUREMENT
Radial clearance
Check radial clearance between outer rotor and case, using
thickness gauge.
If clearance exceeds its limit, replace outer rotor or case.
Limit on radial clearance between outer rotor and case:
0.310 mm (0.0122 in.)
1. Outer rotor
2. Inner rotor
Side clearance
Using straight edge and thickness gauge, measure side clear-
ance.
Limit on side clearance: 0.15 mm (0.0059 in.)
ASSEMBLY
1) Wash, clean and then dry all disassembled parts.
2) Apply thin coat of engine oil to inner and outer rotors, oil seal lip
portion, and inside surfaces of oil pump case and plate.
3) Install outer and inner rotors to pump case.
4) Install rotor plate. Tighten 5 screw securely.
After installing plate, check to be sure that gears turn smoothly
by hand.
6A-24 ENGINE MECHANICAL