Suzuki Engine 2002 GRAND VITARA SQ625, Service Manual

Page: 511 / 834

6A4-22 ENGINE MECHANICAL (J20 ENGINE)
Radial Clearance
Check radial clearance between outer rotor (2) and case (1) using
thickness gauge (4).
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 (5) and thickness gauge (4), measure side
clearance.
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.
4) Install relief valve (3), relief spring (2) and retainer (1) to oil
pump case No.2 (4).
Tighten retainer to specified torque.
Tightening torque
Oil pump relief valve spring retainer
(a) : 29 N·m (2.9 kg-m, 21.0 lb-ft)
5) Install oil pump case pins (5) to oil pump case No.2.
6) Assemble oil pump. And then, check to be sure that rotor
turns smoothly by hand.
Tightening torque
Oil pump case bolt (a) : 12 N·m (1.2 kg-m, 9.0 lb-ft)
3. Inner rotor
1. Oil pump case No.1
2. Outer rotor
3. Inner rotor