Infiniti M35/M45 Y50. Manual — part 947
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OIL PUMP
LU-19
[VQ35DE]
C
D
E
F
G
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A
LU
OIL PUMP
PFP:15010
Components
NBS004Q3
Removal and Installation
NBS004Q4
REMOVAL
1.
Remove oil pans (lower and upper) and oil strainer. Refer to
EM-31, "OIL PAN AND OIL STRAINER"
2.
Remove front timing chain case and timing chain (primary). Refer to
.
3.
Remove oil pump assembly.
INSTALLATION
CAUTION:
Before installation, apply new engine oil to the parts as instructed in the figure.
Note the following, and install in the reverse order of removal.
●
When installing, align crankshaft flat faces with oil pump inner rotor flat faces.
INSPECTION AFTER INSTALLATION
1.
Check the engine oil level. Refer to
2.
Start the engine, and check there is no leaks of engine oil.
3.
Stop the engine and wait for 10 minutes.
4.
Check the engine oil level and adjust the level. Refer to
Disassembly and Assembly
NBS004Q5
DISASSEMBLY
1.
Remove oil pump cover.
2.
Remove oil pump inner rotor and oil pump outer rotor from oil pump body.
3.
After removing regulator valve plug, remove regulator valve spring and regulator valve.
1.
Oil pump body
2.
Oil pump outer rotor
3.
Oil pump inner rotor
4.
Oil pump cover
5.
Regulator valve plug
6.
Regulator valve spring
7.
Regulator valve
SBIA0481E
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LU-20
[VQ35DE]
OIL PUMP
INSPECTION AFTER DISASSEMBLY
Oil Pump Clearance
●
Measure the clearance with feeler gauge.
–
Clearance between oil pump outer rotor and oil pump body
(Position “1”)
–
Tip clearance between oil pump inner rotor and oil pump outer
rotor (Position “2”)
–
If out of the standard, replace inner rotor and outer rotor.
●
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
micrometer. (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.
Standard
: 0.114 - 0.260 mm (0.0045 - 0.0102 in)
Standard
: Below 0.180 mm (0.0071 in)
SLC932A
Standard
: 0.030 - 0.070 mm (0.0012 - 0.0028 in)
Standard
: 0.050 - 0.110 mm (0.0020 - 0.0043 in)
SLC933A
PBIC0821E
Standard
: 0.045 - 0.091 mm (0.0018 - 0.0036 in)
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OIL PUMP
LU-21
[VQ35DE]
C
D
E
F
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A
LU
Regulator Valve Clearance
(Clearance) = (Regulator valve hole diameter) – (Regulator valve
outer diameter)
●
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
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.
Standard
: 0.040 - 0.097 mm (0.0016 - 0.0038 in)
PBIC0822E
PBIC0832E
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LU-22
[VQ35DE]
SERVICE DATA AND SPECIFICATIONS (SDS)
SERVICE DATA AND SPECIFICATIONS (SDS)
PFP:00030
Standard and Limit
NBS004Q6
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 (0.0045 - 0.0102)
Oil pump inner rotor to oil pump outer rotor tip clearance
Below 0.180 (0.0071)
Oil pump body to oil pump inner rotor axial clearance
0.030 - 0.070 (0.0012 - 0.0028)
Oil pump body to oil pump outer rotor axial clearance
0.050 - 0.110 (0.0020 - 0.0043)
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)
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