Infiniti G20 (P11). Manual — part 473
DISASSEMBLY AND ASSEMBLY
NCLC0006
SLC265BA
1.
Oil pump cover
2.
Front cover
3.
Inner gear
4.
Outer gear
5.
Regulator valve
6.
Spring
7.
Shim
8.
Plug
9.
Regulator valve assembly
10. Oil strainer
INSPECTION
NCLC0007
Using a feeler gauge, check the following clearances:
Standard clearance:
Unit: mm (in)
Body to outer gear radial clearance 1
0.114 - 0.200
(0.0045 - 0.0079)
Inner gear to outer gear tip clearance 2
Below 0.18 (0.0071)
Body to inner gear clearance 3
0.05 - 0.09 (0.0020 - 0.0035)
Body to outer gear axial clearance 4
0.05 - 0.11 (0.0020 - 0.0043)
Inner gear to brazed portion of housing clear-
ance 5
0.045 - 0.091
(0.0018 - 0.0036)
I
If the tip clearance (2) exceeds the limit, replace gear set.
I
If body to gear clearances (1, 3, 4, 5) exceed the limit,
replace front cover assembly.
GI
MA
EM
EC
FE
CL
MT
AT
AX
SU
BR
ST
RS
BT
HA
SC
EL
IDX
ENGINE LUBRICATION SYSTEM
Oil Pump (Cont’d)
LC-5
SLC854A
SLC049B
REGULATOR VALVE INSPECTION
NCLC0008
1.
Visually inspect components for wear and damage.
2.
Check oil pressure regulator valve sliding surface and valve
spring.
3.
Coat regulator valve with engine oil. Check that it falls
smoothly into the valve hole by its own weight.
I
If damaged, replace regulator valve set or oil pump assem-
bly.
SLC451A
4.
Check regulator valve to oil pump cover clearance.
Clearance:
6: 0.040 - 0.097 mm (0.0016 - 0.0038 in)
I
If it exceeds the limit, replace oil pump cover.
ENGINE LUBRICATION SYSTEM
Oil Pump (Cont’d)
LC-6
SLC491A
INSTALLATION
NCLC0009
I
Always replace oil seal and O-ring with new ones.
Refer to EM-28, “OIL SEAL REPLACEMENT”.
I
When installing oil pump, apply engine oil to gears.
I
Be sure that O-rings are properly fitted.
I
Use a scraper to remove old liquid gasket from mating
surface of front cover.
I
Also remove traces of liquid gasket from mating surface
of cylinder block.
SLC492AA
1.
Apply a continuous bead of liquid gasket to mating surface of
front cover assembly.
I
Use Genuine RTV silicone sealant part No. 999MP-A7007
or equivalent.
2.
Installation is in the reverse order of removal.
SLC972A
Oil Filter
NCLC0010
The oil filter is a small, full-flow cartridge type and is provided with
a relief valve.
I
Use Tool KV10115801 (J38956) for removing oil filter.
Service Data and Specifications (SDS)
OIL PRESSURE CHECK
NCLC0011
Engine speed
rpm
Approximate discharge pressure
kPa (kg/cm
2
, psi)
Idle speed
More than 80 (0.82, 11.7)
3,200
314 - 392 (3.2 - 4.0, 46 - 57)
REGULATOR VALVE INSPECTION
NCLC0012
Unit: mm (in)
Regulator valve to oil pump cover clearance
0.040 - 0.097 (0.0016 - 0.0038)
OIL PUMP INSPECTION
NCLC0013
Unit: mm (in)
Body to outer gear radial clearance
0.114 - 0.200 (0.0045 - 0.0079)
Inner gear to outer gear tip clearance
Below 0.18 (0.0071)
Body to inner gear clearance
0.05 - 0.09 (0.0020 - 0.0035)
Body to outer gear axial clearance
0.05 - 0.11 (0.0020 - 0.0043)
Inner gear to brazed portion of housing clearance
0.045 - 0.091 (0.0018 - 0.0036)
GI
MA
EM
EC
FE
CL
MT
AT
AX
SU
BR
ST
RS
BT
HA
SC
EL
IDX
ENGINE LUBRICATION SYSTEM
Oil Pump (Cont’d)
LC-7
SEM164F
AEM080
Precautions
LIQUID GASKET APPLICATION PROCEDURE
NCLC0014
1.
Use a scraper to remove all traces of old liquid gasket from
mating surfaces and grooves. Also, completely clean any oil
from these areas.
2.
Apply a continuous bead of liquid gasket to mating surfaces.
(Use Genuine RTV silicone sealant part No. 999MP-A7007
or equivalent.)
I
For oil pan, be sure liquid gasket diameter is 4.0 to 5.0 mm
(0.157 to 0.197 in).
I
For areas except oil pan, be sure liquid gasket diameter is 2.0
to 3.0 mm (0.079 to 0.118 in).
3.
Apply liquid gasket around the inner side of bolt holes (unless
otherwise specified).
4.
Assembly should be done within 5 minutes after coating.
5.
Wait at least 30 minutes before refilling engine oil and engine
coolant.
Preparation
SPECIAL SERVICE TOOL
NCLC0015
The actual shapes of Kent-Moore tools may differ from those of special service tools illustrated here.
Tool number
(Kent-Moore No.)
Tool name
Description
EG17650301
(J33984-A)
Radiator cap tester
adapter
NT564
Adapting radiator cap tester to radiator filler neck
a: 28 (1.10) dia.
b: 31.4 (1.236) dia.
c: 41.3 (1.626) dia.
Unit: mm (in)
ENGINE COOLING SYSTEM
Precautions
LC-8
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