Clearance of Oil Pump Parts

Measure radial clearance using a suitable tool.

Fig 1: Measuring Radial Clearance Using Suitable Tool
Courtesy of SUZUKI OF AMERICA CORP.

Body to outer rotor (position 1): 0.120 - 0.195 mm (0.0047 - 0.0077 in)

Inner rotor to outer rotor tip (position 2): 0.060 - 0.160 mm (0.0024 - 0.0063 in)
Measure side clearance using suitable tools.

Fig 2: Measuring Side Clearance Using Suitable Tools
Courtesy of SUZUKI OF AMERICA CORP.

Body to inner rotor (position 3): 0.030 - 0.070 mm (0.0012 - 0.0028 in)

Body to outer rotor (position 4): 0.050 - 0.090 mm (0.0020 - 0.0035 in)
Calculate the clearance between inner rotor and oil pump body as follows.

Fig 3: Calculating Clearance Between Inner Rotor And Oil Pump Body
Courtesy of SUZUKI OF AMERICA CORP.

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.
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: 0.045 - 0.091 mm (0.0018 - 0.0036 in)