Oil Pump Inspection - Suzuki Grand Vitara Service Manual

1E-18 Engine Lubrication System: For J20 Engine
5) Install oil pump case pins (5) to oil pump case No.2.
6) Assemble oil pump. After assembling oil pump,
check to be sure that rotor turns smoothly by hand.
Tightening torque
Oil pump case bolt (a): 12 N·m (1.2 kgf-m, 9.0 lb-
ft)

Oil Pump Inspection

• Check outer rotor (3), inner rotor and oil pump cases
(1), (2) for excessive wear or damage.
If abnormal condition is found in above checks,
replace oil pump assembly.
• Check relief valve (4) for excessive wear or damage.
If abnormal condition is found in above checks,
replace oil pump relief valve set.
5. Relief spring
6. Retainer
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• Measure free length and tension of oil relief spring.
If the measured values of length or tension is less
than the specification, replace oil pump relief valve
set.
Oil relief spring
Item
Spring free
length
Spring
preload
I2RH01150020-01
• Measure clearance of oil pump rotor and oil pump
case.
I2RH01150021-01
Radial Clearance
Check radial clearance between outer rotor (2) and case
S5JB0A1526007
No.1 (1), using thickness gauge (4).
If clearance exceeds its limit, replace oil pump assembly.
Limit on radial clearance between outer rotor and
case
0.20 mm (0.0079 in.)
3. Inner rotor
I2RH01150022-01
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Standard
63.5 mm (2.5 in.)
85.0 N for 52.0 mm (8.5 kg for 52.0
mm, 19.0 lb/2.05 in.)
I2RH01150023-01
I2RH01150024-01