Cummins 4BT – Cylinder Bore Deglaze – Cleaning

Use a strong soution of hot water and laundry detergent to clean the cylinder bores.

Rinse the cylinder bores until the detergent is removed.
Dry the cylinder block with compressed air.

Be sure to remove the tape covering the tappet and lubricating oil holes after the cleaning process is com­plete.
Check the cylinder bore cleanliness by wiping with a white, lint free, lightly oiled cloth. If grit residue is still
present, repeat the cleaning process until all residue is removed. Wash the cylinder bores with solvent. Dry the
cylinder block with compressed air.

Be sure to remove th e covering from the piston cool­ing nozzles.
Remove the protective tape and cloth, and clean the crankshaft journals.

Use a solvent and a brush to clean any residue that may have splashed on the camshaft.
NOTE: Inspect the camshaft lobes and tappet faces for signs of wear or damage. Refer to Procedure (7-19).