Cummins ISX11.9 CM2250 – Service Manual 007-025   Lubricating Oil Pan

WARNING  Batteries can emit explosive gases. To reduce the possibility of personal injury, always ventilate the compartment before servicing the batteries. To reduce the possibility of arcing, remove the negative (-) battery cable first and attach the negative (-) battery cable last.

WARNING  To reduce the possibility of personal injury, avoid direct contact of hot oil with your skin.

WARNING  Some state and federal agencies have determined that used engine oil can be carcinogenic and cause reproductive toxicity. Avoid inhalation of vapors, ingestion, and prolonged contact with used engine oil. If not reused, dispose of in accordance with local environmental regulations.

• Disconnect the batteries. Refer to the OEM service manual.
• Drain the lubricating oil system.Refer to Procedure 007-037 in Section 7.

NOTE: The sealant on the front and rear T-joints must not be removed by pulling down on the gasket. Doing so can damage the lower portion of the front seal carrier or the rear gear housing gasket, respectively. Break the sealant at these locations with a metal scraper prior to removing the gasket

Remove the oil pan mounting capscrews, oil pan, and gasket.

Discard the oil pan gasket.

WARNING  When using a steam cleaner, wear safety glasses or a face shield, as well as protective clothing. Hot steam can cause serious personal injury.

WARNING  Wear appropriate eye and face protection when using compressed air. Flying debris and dirt can cause bodily injury.

Remove all gasket material from the cylinder block and oil pan mating surfaces.

Steam clean the oil pan.

Dry the oil pan with compressed air.

Inspect the oil pan and oil pan stiffeners for damage.

NOTE: If cracks are found, replace the damaged part. Do not attempt to repair the oil pan by welding.

Be sure the bulkhead fitting is tight. If the fitting is loose, replace the o-ring and tighten the fitting.

Apply a 1.97 mm [1/8 in] bead of silicon sealant, Part Number 3164067, to each of the four T-joints:

• Two locations at the intersection of the cylinder block and rear gear housing.
• Two locations at the intersection of the cylinder block and front seal carrier.

Install guide pins, Part Number 3164977, into the pan rail to help align the oil pan and gasket to the cylinder block during installation.

Install a new oil pan gasket.

Install the lubricating oil pan.

CAUTION  Do not add lock washers to the factory installed capscrews. The movement of the lock washer against the oil pan can create a path for corrosion and/or stress cracks.

Install the oil pan capscrews.

Remove the guide pins, if used, and install the remaining capscrews.

Tighten the capscrews in a crisscross sequence, as illustrated.

WARNING  Batteries can emit explosive gases. To reduce the possibility of personal injury, always ventilate the compartment before servicing the batteries. To reduce the possibility of arcing, remove the negative (-) battery cable first and attach the negative (-) battery cable last.

• Fill the lubricating oil system. Refer to Procedure 007-037 in Section 7.
• Connect the batteries. Refer to the OEM service manual.
• Operate the engine to normal operating temperature and check for leaks.