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6.7L Cummins Lubricating Oil System – Lubricating Oil Pump – Clean and Inspect for Reuse

Clean the lubricating oil pump with solvent.
Dry with compressed air.

With the pump removed use solvents to clean the cylinder block cavity.
Dry with compressed air.

Inspect the lubricating oil pump gears for chips, cracks, or excessive wear.

If debris has been expected to have gone through the lubricating oil pump, the rear cover plate can be removed
to inspect for internal damage.
NOTE: The lubricating oil pump is serviced/replaced as an assembly. No internal parts are available for rebuild/
replacement.

Inspect the rear cover plate for scoring or grooves. If the cover is scored or grooved too badly, the lubricating oil
pump must be replaced.

Inspect the lubricating oil pump housing and gerotor drive for damage and excessive wear.
If the lubricating oil pump is damaged, the lubricating oil pump must be replaced.