Opel Insignia Owners & Service Manuals

Opel Insignia: Oil Pump

ROTOR TYPE

NOTE: Examples used in this article are general in nature and do not necessarily relate to a specific engine or system. Illustrations and procedures have been chosen to guide mechanic through engine overhaul process.

Descriptions of processes of cleaning, inspection, assembly and machine shop practice are included.

Always refer to appropriate engine overhaul article, if available, in the ENGINES section for complete overhaul procedures and specifications for the vehicle being repaired.

Mark oil pump rotor locations before removing. See Fig. 30. Remove outer rotor and measure thickness and diameter. Measure inner rotor thickness. Inspect shaft for scoring or wear. Inspect rotors for pitting or damage. Inspect cover for grooving or wear. Replace worn or damaged components.

Measure outer rotor-to-body clearance. Replace pump assembly if clearance exceeds specification.

Measure clearance between rotors. See Fig. 31. Replace shaft and both rotors if clearance exceeds specification.

Install rotors in pump body. Position straightedge across pump body. Using feeler gauge, measure clearance between rotors and straightedge. Pump cover wear is measured using a straightedge and feeler gauge. Replace pump if clearance exceeds specification.

Fig. 30: Typical Rotor Type Oil Pump
Fig. 30: Typical Rotor Type Oil Pump

Fig. 31: Measuring Rotor Clearance
Fig. 31: Measuring Rotor Clearance

GEAR TYPE

NOTE: Examples used in this article are general in nature and do not necessarily relate to a specific engine or system. Illustrations and procedures have been chosen to guide mechanic through engine overhaul process.

Descriptions of processes of cleaning, inspection, assembly and machine shop practice are included.

Always refer to appropriate engine overhaul article, if available, in the ENGINES section for complete overhaul procedures and specifications for the vehicle being repaired.

Mark oil pump gear location before removing. See Fig. 32. Remove gears from pump body. Inspect gears for pitting or damage. Inspect cover for grooving or wear. Measure gear diameter and length.

Measure gear housing cavity depth and diameter. See Fig. 33. Replace worn or damaged components.

Pump cover wear is measured using a straightedge and feeler gauge. Replace pump or components if warpage or wear exceeds specification, or mating surface of pump cover is scratched or grooved.

Fig. 32: Typical Gear Type Oil Pump
Fig. 32: Typical Gear Type Oil Pump

Fig. 33: Measuring Oil Pump Gear Cavity
Fig. 33: Measuring Oil Pump Gear Cavity

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     Description and Operation

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     Repair Instructions

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