SA91101NE Feeler Gage Set

1. Inspect the body clearance:

•	Using SA91101NE or equivalent, measure the clearance between the driven rotor and pump body.

Body to Side Clearance
Service Limit 0.277 mm (0.011 in). maximum.

•	If the clearance is greater than the maximum, replace the oil pump assembly.




2. Inspect the tip clearance:

Using SA91101NE or equivalent, measure the clearance between both rotor tips.

Clearance
Standard 0.150 mm (0.006 in) maximum.




3. Inspect the inner end outer gear-to-housing clearance:

Using SA91101NE or equivalent or Plastigage® or equivalent and a straight edge, measure the oil pump inner and outer gear to housing clearance:

Inner Gear-to-Housing Clearance
Service limit 0.08 mm (0.003 in) maximum.

Outer Gear-to-Housing Clearance
Service limit 0.10 mm (0.004 in) maximum.




4. Inspect the oil pressure regulating valve, oil pressure relief valve and springs for wear and damage. Check the oil pump pressure regulating valve and oil pressure relief valve for free movement in bores. Replace if worn, damaged or if the valves do not move freely in the bores.