Nissan Frontier D40. Manual — part 829
OIL PUMP
LU-27
< ON-VEHICLE REPAIR >
[VQ40DE]
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OIL PUMP
Exploded View
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Removal and Installation
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REMOVAL
1.
Disconnect the battery negative terminal. Refer to
PG-84, "Removal and Installation"
2.
Remove the RH and LH wheels and tires. Refer to
3.
Remove the RH and LH front fender protectors. Refer to
EXT-20, "Removal and Installation"
.
4.
Remove the air duct and resonator assembly and the air cleaner case (upper). Refer to
5.
Remove timing chain (primary) only. Refer to
EM-173, "Removal and Installation"
.
6.
Remove the oil pump assembly.
INSTALLATION
Installation is in the reverse order of removal, paying attention to the following.
• When installing, align crankshaft flat faces with inner rotor flat faces.
INSPECTION AFTER INSTALLATION
1.
Check the engine oil level. Refer to
2.
Start the engine and check for engine oil leaks.
3.
Stop engine and wait for 10 minutes.
4.
Check the engine oil level and adjust engine oil level as required. Refer to
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 spring
8.
Regulator valve
PBIC2826E
LU-28
< DISASSEMBLY AND ASSEMBLY >
[VQ40DE]
OIL PUMP
DISASSEMBLY AND ASSEMBLY
OIL PUMP
Disassembly and Assembly
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DISASSEMBLY
1.
Remove oil pump cover.
2.
Remove inner rotor and outer rotor from oil pump body.
3.
Remove the regulator valve plug, regulator valve spring and regulator valve.
INSPECTION AFTER DISASSEMBLY
Clearance of Oil Pump Parts
• Measure radial clearance using a suitable tool.
• Measure side clearance using suitable tools.
• Calculate the clearance between inner rotor and oil pump body as
follows.
1.
Measure the inner diameter of oil pump body to brazed portion
(position 5) using suitable tool.
2.
Measure the outer diameter of protruded portion of inner rotor
(position 6) using suitable tool.
3.
Calculate the clearance using the following formula.
• (Clearance) = (Inner diameter of oil pump body) - (Outer diameter of inner rotor)
Regulator Valve Clearance
Body to outer rotor (position 1)
: 0.120 - 0.195 mm (0.0047 - 0.0077 in)
Inner rotor to outer rotor tip (position 2)
: 0.060 - 0.160 mm (0.0024 - 0.0063 in)
PBIC2827E
Body to inner rotor (position 3)
: 0.030 - 0.070 mm (0.0012 - 0.0028 in)
Body to outer rotor (position 4)
: 0.050 - 0.090 mm (0.0020 - 0.0035 in)
PBIC2828E
PBIC0821E
Inner rotor to brazed portion of housing
clearance
: 0.045 - 0.091 mm (0.0018 - 0.0036 in)
OIL PUMP
LU-29
< DISASSEMBLY AND ASSEMBLY >
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Check regulator valve to oil pump cover clearance using the following formula.
• (Clearance) = D
1
(Valve hole diameter) - D
2
(Outer Diameter of
valve)
CAUTION:
• Coat regulator valve with engine oil.
• Check that it falls smoothly into the regulator valve hole by its
own weight.
ASSEMBLY
Installation is in the reverse order of removal.
NOTE:
Install oil pump inner rotor with the groove faced and oil pump outer
rotor with the punch mark to oil pump cover side.
Regulator valve to oil pump cover
: 0.025 - 0.070 mm (0.0010 - 0.0028 in)
PBIC2829E
PBIC2830E
LU-30
< SERVICE DATA AND SPECIFICATIONS (SDS)
[VQ40DE]
SERVICE DATA AND SPECIFICATIONS (SDS)
SERVICE DATA AND SPECIFICATIONS (SDS)
SERVICE DATA AND SPECIFICATIONS (SDS)
Standard and Limit
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OIL PRESSURE
Unit: kPa (kg/cm
2
, psi)
*: Engine oil temperature at 80
°
C (176
°
F)
OIL PUMP
Unit: mm (in)
REGULATOR VALVE
Unit: mm (in)
ENGINE OIL CAPACITY (APPROXIMATE)
Unit:
(US qt, Imp qt)
Engine speed
Approximate discharge oil pressure*
Idle speed
More than 98 (1.0, 14)
2,000 rpm
More than 294 (3.0, 43)
Body to outer rotor
0.120 - 0.195 (0.0047 - 0.0077)
Inner rotor to outer rotor tip
0.060 - 0.160 (0.0024 - 0.0063)
Body to inner rotor
0.030 - 0.070 (0.0012 - 0.0028)
Body to outer rotor
0.050 - 0.090 (0.0020 - 0.0035)
Inner rotor to brazed portion of housing
0.045 - 0.091 (0.0018 - 0.0036)
Regulator valve to oil pump cover
0.025 - 0.070 (0.0010 - 0.0028)
Drain and refill
With oil filter change
5.1 (5-3/8, 4-1/2)
Without oil filter change
4.8 (5-1/8, 4-1/4)
Dry engine (Overhaul)
6.3 (6-5/8, 5-1/2)
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