Nissan Maxima Service and Repair Manual: Oil pump
Removal and Installation
REMOVAL
- Remove the engine from the vehicle. Refer to EM-103, "Removal and
Installation".
- Remove the upper oil pan. Refer to EM-37, "Removal and
Installation (Upper Oil Pan)".
- Remove the timing chain. Refer to EM-64, "Removal and
Installation".
- Remove oil pump assembly.
INSTALLATION
Installation is in the reverse order of removal.
Disassembly and Assembly
- Oil pump housing
- Outer rotor
- Inner rotor
- Oil pump cover
- O-ring
- Regulator valve set
- Regulator valve
- Spring
- Regulator plug
- Oil strainer
CAUTION: Before assembly, apply new engine
oil to the parts as shown.
DISASSEMBLY
- Remove the oil pump cover.
- Remove inner rotor and outer rotor from oil pump housing.
CAUTION: The outer rotor has
directional vanes in relation to the rotation of the oil pump shaft. Note
the outer rotor vane direction for assembly.
- Remove oil strainer from oil pump housing.
- After removing regulator plug, remove spring and regulator valve.
INSPECTION AFTER DISASSEMBLY
Clearance of Oil Pump Parts
- Measure clearance with feeler gauge.
- Clearance between outer rotor and oil pump body (position 1).
- Tip clearance between inner rotor and outer rotor (position 2).
- Measure clearance with feeler gauge and straightedge.
- Side clearance between inner rotor and oil pump body (position 3).
- Side clearance between outer rotor and oil pump body (position 4).
- Calculate the clearance between inner rotor and oil pump body as
follows:
- Measure the outer diameter of protruded portion of inner rotor
(position A).
- Measure the inner diameter of oil pump body with inside
micrometer (position B).
(clearance 5) = (inner diameter of oil pump body
B) - (outer diameter of inner rotor A)
- If out of specifications, replace oil pump assembly.
Regulator Valve
- Visually inspect components for wear and damage.
- Check oil pressure regulator valve sliding surface and valve
spring.
- Coat regulator valve with engine oil. Check that it falls smoothly
into the valve hole by its own weight.
If damaged, replace oil pump
assembly.
Regulator Valve Clearance
(Clearance 6) = D (Valve hole diameter) - E (Outer diameter of valve)
If it exceeds the standard, replace the oil pump assembly.
CAUTION:
- Coat regulator valve with engine oil.
- Check that it falls smoothly into the valve hole by its own
weight.
Assembly
Assembly is in the reverse order of disassembly.
- Assemble the outer rotor in the correct vane orientation to
rotation as noted during disassembly and the inner rotor with the groove
on the oil pump cover side.
CAUTION:
- Do not reuse O-ring.
- Before assembly apply new engine oil to the parts as
specified.
Removal and Installation
Oil filter
Oil cooler bolt
Water pipe
Water hose
Oil cooler
O-ring
Oil pan
Water pipe
Relief valve
&nbs ...
Other materials:
Hands-free phone system
System Diagram
System Description
Refer to the Owner's Manual for Bluetooth telephone system operating
instructions.
NOTE:
Cellular telephones must have their wireless connection set up (paired) before
using the Bluetooth telephone
system.
Bluetooth telephone system allows users ...
Starting the engine
1. Apply the parking brake.
2. Move the shift lever to P (Park) or N (Neutral).
P (Park) is recommended.
The starter is designed not to operate if
the shift lever is in any of the driving
positions.
3. Push the ignition switch to the ON position.
Depress the brake pedal and push the ign ...
Tire equipment
1. SUMMER tires have a tread designed to
provide superior performance on dry pavement.
However, the performance of these
tires will be substantially reduced in snowy
and icy conditions. If you operate your vehicle
on snowy or icy roads, NISSAN recommends
the use of MUD & SNOW or ALL
SEA ...