PUMP (RETURN) oil Recommendations For break-in and standard operation of the Ultima Shovelhead engine we recommend using high quality petroleum based API service SJ rated motor oils, such as Ultima’s 60 weight oil, MW# 103-111. The oil’s viscosity should be matched with the climate conditions but in most cases Ultima 60 weight motor oil.
- The oil pump used in the Nissan Altima is a sump pump that secures to the oil pickup tube inside the oil pan. To get to the oil pump so you can replace it, you must remove the oil pan from the engine. This makes the job somewhat labor intensive and time-consuming. However, if you continue to drive your Altima.
- 2009 NISSAN ALTIMA 2009 ALTIMA OWNER'S MANUAL L32-D Printing: March 2009 (10) Publication No.: OM9E-0L32U2 Printed in U.S.A. For your safety, read carefully and keep in this vehicle.
- Shop 54 Oil Pumps at Northern Tool + Equipment. Browse a variety of top brands in Oil Pumps such as Roughneck, Ingersoll Rand, and Sandpiper from the product experts.
- 40 98-515 Oil pump, Ultima 92-99 std. Polished w/hdwre & gskts EA 88,100 98-517 Oil pump, Ultima 92-99 High output polished w/hdwre & gskts EA 88,100,100(4X4),110 98-520 Oil pump, Ultima 92-99 High output wrinkle blk w/hdwre & gskts EA 88,100,100(4X4),110.
Removal and Installation
REMOVAL
1. Remove the timing chain. Refer to EM-163, 'Removal'.
2. Remove oil pump assembly.
INSTALLATION
Installation is in the reverse order of removal.
Disassembly and Assembly
1. Oil pump housing
2. Outer rotor
3. Inner rotor
4. Oil pump cover
5. O-ring
6. Regulator valve set
7. Regulator valve
8. Spring
9. Regulator plug
10. Oil strainer
CAUTION: Before assembly apply new engine oil to the parts as shown above.
DISASSEMBLY
1. Remove the oil pump cover.
2. Remove inner rotor and outer rotor from oil pump housing.
3. Remove oil strainer from oil pump housing.
4. 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).
Standard : 0.114 - 0.260 mm (0.0045 - 0.0102 in)
• Tip clearance between inner rotor and outer rotor (position 2).
Standard : Below 0.180 mm (0.0071 in)
• Measure clearance with feeler gauge and straightedge.
• Side clearance between inner rotor and oil pump body (position 3).
Standard : 0.030 - 0.070 mm (0.0012 - 0.0028 in)
• Side clearance between outer rotor and oil pump body (position 4).
Standard : 0.050 - 0.110 mm (0.0020 - 0.0043 in)
• Calculate the clearance between inner rotor and oil pump body as follows.
1. Measure the outer diameter of protruded portion of inner rotor (position A).
2. 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)
Standard : 0.045 - 0.091 mm (0.0018 - 0.0036 in)
Regulator Valve
1. Visually inspect components for wear and damage.
2. Check oil pressure regulator valve sliding surface and valve spring.
3. Coat regulator valve with engine oil. Check that it falls smoothly into the valve hole by its own weight.
If damaged, replace regulator valve set or oil pump body.
Regulator Valve Clearance
(Clearance 6) = D (Valve hole diameter) – E (Outer diameter of valve)
Standard : 0.040 - 0.097 mm (0.0016 - 0.0038 in)
If it exceeds the standard, replace the oil pump body.
CAUTION: Coat regulator valve with engine oil.
Ultima Oil Pump Manual Briggs & Stratton
Check that it falls smoothly into the valve hole by its own weight.
Assembly
Assembly is in the reverse order of disassembly.
• Assemble the inner rotor and outer rotor with the punched marks on the oil pump cover side.
CAUTION: Before assembly apply new engine oil to the parts as specified.
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