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
S5JB0A1526007
• 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.
• 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
• Measure clearance of oil pump rotor and oil pump
case.
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.)
5. Relief spring
6. Retainer
I2RH01150020-01
I2RH01150021-01
I2RH01150022-01
Item
Standard
Spring free
length
63.5 mm (2.5 in.)
Spring
preload
85.0 N for 52.0 mm (8.5 kg for 52.0
mm, 19.0 lb/2.05 in.)
3. Inner rotor
I2RH01150023-01
I2RH01150024-01
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