Suzuki 2000 Grand Vitara SQ416, Service Manual

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YH4
GRAND
VITARA
1. Oil pump case No.1
2. Outer rotor
3. Inner rotor
4. Thickness gauge
1. Oil pump case No.1
2. Outer rotor
3. Inner rotor
4. Thickness gauge
5. Straightedge
6A4-20 ENGINE MECHANICAL (J20 ENGINE)
Measure free length and tension of oil relief spring.
Item Standard
Spring free length
63.5 mm
(2.5 in.)
Spring preload
86.0 N for
52.0 mm
8.6 kg for
52.0 mm
62.2 lb /
2.05 in.
Measure clearance of oil pump rotor and oil pump case.
Radial Clearance
Check radial clearance between outer rotor and case, using thick-
ness gauge.
If clearance exceeds its limit, replace outer rotor or case.
Limit on radial clearance between
outer rotor and case: 0.15 mm (0.0059 in.)
Side Clearance
Using straightedge and thickness gauge, measure side clear-
ance.
Limit on side clearance: 0.11 mm (0.0043 in.)
ASSEMBLY
1) Wash, clean and then dry all disassembled parts.
2) Apply thin coat of engine oil to inner and outer rotors, and inside
surfaces of oil pump case.
3) Install outer rotor to pump case No.1.