Engine Lubrication System: Removal & Installation Nissan Maxima A34

REMOVAL

1. Remove the splash shield using power tool.
2. Remove the oil filter using Tool. Tool: KV10115801 (J-38956) CAUTION: The oil filter is provided with a relief valve. Use a genuine NISSAN oil filter, or equivalent. Be careful not to get burned, the engine oil may be hot. When removing, prepare a shop cloth to absorb any oil leakage or spillage. Do not allow engine oil to adhere to the drive belts. Completely wipe off any oil that adheres to the engine and the vehicle.

Scheme 5

Scheme 6

1. Remove any foreign material adhering to the oil filter installation surface on the oil cooler.
2. Apply engine oil to the oil seal contact surface of the new oil filter as shown.
3. Screw the oil filter manually until it touches the installation surface, then tighten it by 2/3 turn as shown. Or tighten to specification using Tool. Oil filter : 14.7 - 20.5 N.m (1.5 - 2.0 kg-m, 11 - 15 ft-lb) Tool : KV10115801 (J-38956)
4. After warming up the engine, check for engine oil leakage.
5. Install the splash shield.
6. Check oil level and add engine oil as necessary. Refer to «ENGINE OIL»(ref-233656-S34400740082006052600000) .

Scheme 7

1. Remove the timing chain. Refer to «REMOVAL AND INSTALLATION»(ref-233643-S13804956682006052600000) .
2. Remove the oil strainer.
3. Remove the oil pump.

INSTALLATION

Installation is in the reverse order of removal.

Scheme 8

Scheme 9

Scheme 10

Scheme 11

1. Measure the rotor clearance with a feeler gauge as shown. Clearance between outer rotor and oil pump body (position 1). Position 1: 0.114 - 0.200 mm (0.0045 - 0.0079 in) Tip clearance between inner rotor and outer rotor (position 2). Position 2: less than 0.180 mm (0.0071 in)
2. Measure the rotor clearance with a feeler gauge and straightedge as shown. Side clearance is between the inner rotor and the oil pump body (position 3). Position 3: 0.030 - 0.070 mm (0.0012 - 0.0028 in) Side clearance is between the outer rotor and the oil pump body (position 4). Position 4: 0.050 - 0.110 mm (0.0020 - 0.0043 in)
3. 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). Clearance 5: 0.045 - 0.091 mm (0.0018 - 0.0036 in)

Scheme 12

1. Visually inspect the components for wear and damage.
2. Check the oil pressure regulator valve sliding surface and the regulator spring.
3. Coat the regulator valve with engine oil. Check that the regulator valve falls smoothly into the valve hole by its own weight.
4. If damaged, replace the regulator valve set or the oil pump body as necessary.

Scheme 13

1. Clearance 6 = (regulator valve hole diameter D) - (outer regulator valve diameter E).
2. If the calculated clearance 6 exceeds the standard, replace the oil pump body. Clearance 6: 0.040 - 0.097 mm (0.0016 - 0.0038 in) CAUTION: Coat the regulator valve with clean engine oil. Check that it falls smoothly into the valve hole by its own weight.

1. Drain the engine oil. Refer to «CHANGING ENGINE OIL»(ref-233644-S09752316582006052600000) .
2. Drain the engine coolant. Refer to «DRAINING ENGINE COOLANT»(ref-233644-S13037486022006052600000)
3. Remove the oil filter. Refer to «REMOVAL AND INSTALLATION»(ref-233656-S25356124232006052600000) .
4. Remove the wheel and tire. Refer to «REMOVAL»(ref-233651-S15446684972006052600000) .
5. Remove the splash shield using power tool.
6. Disconnect the coolant hoses from the oil cooler. CAUTION: Do not spill coolant on the drive belt.
7. Remove the oil cooler from the upper oil pan.

Installation is in the reverse order of removal.

Scheme 14

1. When installing the oil cooler, align the oil cooler stopper slot with the oil cooler stopper on the oil pan.