Nissan Titan. Instruction — part 453
LU-14
< REMOVAL AND INSTALLATION >
OIL PUMP
OIL PUMP
Exploded View
INFOID:0000000009886461
Removal and Installation
INFOID:0000000009886462
REMOVAL
1. Remove timing chain cover. Refer to
EM-50, "Removal and Installation"
.
2. Remove the oil pump drive spacer.
3. Remove the oil pump.
INSTALLATION
Installation is in the reverse order of removal.
• Align the crankshaft key and the flat face of the inner rotor before
inserting the oil pump drive spacer.
• Rotate the oil pump inner rotor by hand until the crankshaft key
and the inner rotor are aligned properly.
• Then tap lightly until the oil pump drive spacer reaches the end.
INSPECTION AFTER INSTALLATION
1.
Oil pump body
2.
Outer rotor
3.
Inner rotor
4.
Oil pump cover
5.
Oil pump drive spacer
6.
Regulator valve
7.
Regulator spring
8.
Regulator plug
WBIA0415E
KBIA2512E
KBIA2490E
OIL PUMP
LU-15
< REMOVAL AND INSTALLATION >
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• Start the engine, and check for engine oil and engine coolant leaks and repair as necessary.
• Stop engine and wait 10 minutes.
• Check level and add engine oil as required. Refer to
LU-16
< UNIT DISASSEMBLY AND ASSEMBLY >
OIL PUMP
UNIT DISASSEMBLY AND ASSEMBLY
OIL PUMP
Disassembly and Assembly
INFOID:0000000009886463
DISASSEMBLY
1. Remove oil pump cover.
2. Remove inner rotor and outer rotor from oil pump body.
3. Remove the regulator plug, regulator 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 outer diameter of protruded portion of inner rotor
(position 5) using suitable tool.
Body to outer rotor
(position 1)
: Refer to
.
Inner rotor to outer
rotor tip (position 2)
: Refer to
PBIC0139E
Body to inner rotor
(position 3)
: Refer to
Body to outer rotor
(position 4)
: Refer to
PBIC0140E
PBIC0141E
OIL PUMP
LU-17
< UNIT DISASSEMBLY AND ASSEMBLY >
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2. Measure the inner diameter of oil pump body to brazed portion
(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
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
Assembly is in the reverse order of disassembly.
NOTE:
Install the inner rotor and outer rotor with the punched marks on the
oil pump cover side.
PBIC0142E
Inner rotor to brazed portion of
housing clearance
: Refer to
Regulator valve to oil
pump cover
.
PBIC0143E
PBIC0144E
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