Oil Pump Inspection - Suzuki Grand Vitara 2011 Manual

1E-19 Engine Lubrication System: For J20 Engine

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
• 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 (8.5 kg for 52.0 mm, 19.0 lb/2.05 in.)
• Measure clearance of oil pump rotor and oil pump
case.
S6JB0A1526007
I2RH01150022-01
Standard
63.5 mm (2.5 in.)
85.0 N for 52.0 mm
I2RH01150023-01
Radial Clearance
Check radial clearance between outer rotor (2) and case
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
Side Clearance
Using straightedge (5) and thickness gauge (4),
measure side clearance.
If side clearance exceeds its limit, replace oil pump
assembly.
Limit on side clearance
0.11 mm (0.0043 in.)
1. Oil pump case No.1
2. Outer rotor
I2RH01150024-01
I2RH01150025-01
3. Inner rotor