Suzuki 2000 Grand Vitara SQ625 Service Manual page 439

6A4-20 ENGINE MECHANICAL (J20 ENGINE)
1. Oil pump case No.1
2. Outer rotor
3. Inner rotor
4. Thickness gauge
5. Straightedge
_ Measure free length and tension of oil relief spring.
_ Measure clearance of oil pump rotor and oil pump case.
1. Oil pump case No.1
2. Outer rotor
3. Inner rotor
4. Thickness gauge
ASSEMBLY
1) Wash, clean and then dry all disassembled parts.
2) Apply thin coat of engine oil to inner and outer rotors, and inside
3) Install outer rotor to pump case No.1.
Item
Spring free length
Spring preload
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.)
surfaces of oil pump case.
Standard
63.5 mm
(2.5 in.)
86.0 N for
52.0 mm
8.6 kg for
52.0 mm
62.2 lb/
2.05 in.