Inspection After Disassembly

WARNING: This page is about a different car, the 2012 Nissan Pathfinder. However, it is still accessible from the selected car via links, so may be relevant.

Clearance of Oil Pump Parts

Measure radial clearance using a suitable tool.
Body to outer rotor (position 1)

Refer to "STANDARD AND LIMIT ".

Inner rotor to outer rotor tip (position 2)

Refer to "STANDARD AND LIMIT ".

Fig 1: Checking Clearance Between Oil Pump Outer Rotor And Oil Pump Body
Courtesy of NISSAN NORTH AMERICA, INC.
Measure side clearance using suitable tools.
Body to inner rotor (position 3)

Refer to "STANDARD AND LIMIT ".

Body to outer rotor (position 4)

Refer to "STANDARD AND LIMIT ".

Fig 2: Checking Side Clearance Between Oil Pump Inner Rotor And Oil Pump Body
Courtesy of NISSAN NORTH AMERICA, INC.
Calculate the clearance between inner rotor and oil pump body as follows.

Measure the inner diameter of oil pump body to brazed portion (position 5) using suitable tool.
Measure the outer diameter of protruded portion of inner rotor (position 6) using suitable tool.

Fig 3: Checking Oil Pump Inner Rotor Outer Diameter
Courtesy of NISSAN NORTH AMERICA, INC.
Calculate the clearance using the following formula.
- (Clearance) = (Inner diameter of oil pump body) - (Outer diameter of inner rotor)
Inner rotor to brazed portion of housing clearance

Refer to "STANDARD AND LIMIT ".

Regulator Valve Clearance

Check regulator valve to oil pump cover clearance using the following formula.

(Clearance) = D1 (Valve hole diameter) - D2 (Outer Diameter of valve)
Regulator valve to oil pump cover

Refer to "STANDARD AND LIMIT ".

CAUTION:

Coat regulator valve with engine oil.
Check that it falls smoothly into the regulator valve hole by its own weight.

Fig 4: Checking Regulator Valve Clearance

Courtesy of NISSAN NORTH AMERICA, INC.