Infiniti FX35 / FX45. Manual — part 826
LU-16
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OIL PUMP
• Measure the clearance with feeler gauge.
- Clearance between oil pump outer rotor and oil pump body (posi-
tion “1”)
- Tip clearance between oil pump inner rotor and oil pump outer
rotor (position “2”)
• Measure the clearance with feeler gauge and straightedge.
- Side clearance between oil pump inner rotor and oil pump body
(position “3”)
- Side clearance between oil pump outer rotor and oil pump body
(position “4”)
• Calculate the clearance between oil pump inner rotor and oil pump body as follows:
OIL PUMP BODY INNER DIAMETER
- Measure the inner diameter of oil pump body with inside microme-
ter. (Position “5”)
OIL PUMP INNER ROTOR OUTER DIAMETER
- Measure the outer diameter of protruded portion of oil pump inner
rotor with micrometer. (Position “6”)
OIL PUMP INNER ROTOR TO OIL PUMP BODY CLEARANCE
- (Clearance) = (Oil pump body inner diameter) – (Oil pump inner rotor outer diameter)
• If measured/calculated values are out of the standard, replace oil pump assembly.
Regulator Valve Clearance
(Clearance) = (Valve hole diameter) – (Regulator valve outer diame-
ter)
• If the calculated value is out of the standard, replace oil pump
assembly.
CAUTION:
• Coat regulator valve with engine oil.
• Make sure that it falls smoothly into valve hole by its own
weight.
ASSEMBLY
Standard
: 0.114 - 0.260 mm (0.004 - 0.010 in)
Standard
: Below 0.180 mm (0.007 in)
SLC932A
Standard
: 0.030 - 0.070 mm (0.001 - 0.003 in)
Standard
: 0.050 - 0.110 mm (0.002 - 0.004 in)
SLC933A
PBIC0821E
Standard
: 0.045 - 0.091 mm (0.0018 - 0.0036 in)
Standard
: 0.040 - 0.097 mm (0.0016 - 0.0038 in)
PBIC0822E
OIL PUMP
LU-17
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Note the following, and assemble in the reverse order of disassembly.
• Install oil pump inner rotor with the groove faced to oil pump cover
side.
PBIC0832E
LU-18
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SERVICE DATA AND SPECIFICATIONS (SDS)
SERVICE DATA AND SPECIFICATIONS (SDS)
Standard and Limit
INFOID:0000000001325823
ENGINE OIL PRESSURE
Unit: kPa (kg/cm
2
, psi)
*: Engine oil temperature at 80
°
C (176
°
F)
ENGINE OIL CAPACITY (APPROXIMATE)
Unit:
(US qt, lmp qt)
OIL PUMP
Unit: mm (in)
REGULATOR VALVE
Unit: mm (in)
Engine speed
Approximate discharge pressure*
Idle speed
More than 98 (1.0, 14)
2,000 rpm
More than 294 (3.0, 43)
Drain and refill
With oil filter change
4.7 (5, 4-1/8)
Without oil filter change
4.4 (4-5/8, 3-7/8)
Dry engine (Overhaul)
5.4 (5-3/4, 4-3/4)
Oil pump body to oil pump outer rotor radial clearance
0.114 - 0.260 (0.004 - 0.010)
Oil pump inner rotor to oil pump outer rotor tip clearance
Below 0.180 (0.007)
Oil pump body to oil pump inner rotor axial clearance
0.030 - 0.070 (0.001 - 0.003)
Oil pump body to oil pump outer rotor axial clearance
0.050 - 0.110 (0.002 - 0.004)
Oil pump inner rotor to brazed portion of housing clearance
0.045 - 0.091 (0.0018 - 0.0036)
Regulator valve to oil pump cover clearance
0.040 - 0.097 (0.0016 - 0.0038)
PRECAUTIONS
LU-19
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SERVICE INFORMATION
PRECAUTIONS
Precaution for Liquid Gasket
INFOID:0000000001325824
LIQUID GASKET APPLICATION PROCEDURE
1.
Remove old liquid gasket adhering to the liquid gasket application surface and the mating surface.
• Remove liquid gasket completely from the liquid gasket application surface, mounting bolts, and bolt
holes.
2.
Wipe the liquid gasket application surface and the mating surface with white gasoline (lighting and heating
use) to remove adhering moisture, grease and foreign materials.
3.
Apply liquid gasket to the liquid gasket application surface.
Use Genuine RTV Silicone Sealant or equivalent. Refer to
.
• Within five minutes of liquid gasket application, install the mating component.
• If liquid gasket protrudes, wipe it off immediately.
• Do not retighten mounting bolts or nuts after the installation.
• After 30 minutes or more have passed from the installation, fill engine oil and engine coolant.
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