B5.9G, B5.9LPG – Troubleshooting and Repair Manual – 007-025   Lubricating Oil Pan

Cummins Inc. recommends the use of a high-quality SAE 15W-40 Gas engine oil.

A front sump (1), rear sump (2), or center sump (3) lubricating oil pan option can be used, depending on the application. The mounting of the lubricating oil pickup tube will vary with the lubricating oil pan used.

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

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

NOTE: Use a container that can hold at least 20 liters [21 qt] of lubricating oil.

Drain the lubricating oil.

Operate the engine until the coolant temperature reaches 60°C [140°F]. Shut the engine OFF. Remove the oil drain plug. Drain the oil immediately to make sure all the oil and suspended contaminants are removed from the engine.

Remove the lubricating oil pan and gasket.

Remove the lubricating oil suction tube. Refer to Procedure 007-035 in Section 7.

WARNING  When using solvents, acids, or alkaline materials for cleaning, follow the manufacturer’s recommendations for use. Wear goggles and protective clothing to reduce the possibility of personal injury.

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

Clean the gasket surfaces.

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

Steam clean the oil pan, and dry with compressed air.

Inspect the oil pan, suction tube, and tube braces for damage.

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

Use the following procedure if the suction tube must be replaced. Refer to Procedure 007-035 in Section 7.

ThreeBond™ Sealant, Part Number 3823494

Use ThreeBond™ sealant to fill the joints between the lubricating oil pan rail, gear housing, and rear seal housing.

Use the following procedure if the suction tube has been removed. Refer to Procedure 007-035 in Section 7.

ThreeBond™ Sealant, Part Number 3823494

Apply a 2-mm [1/16-in] bead of ThreeBond™ sealant, Part Number 3823494, to both sides of the new lubricating pan gasket.

NOTE: Install three guide pins, Part Number 3164977, to improve alignment of the oil pan sealing components to the cylinder block.

Install the gasket and lubricating oil pan.

Assemble the washers and capscrews to secure the lubricating oil pan as illustrated.

Tighten all capscrews in the sequence shown in the accompanying chart.

Clean and check the lubricating oil drain plug threads and sealing surface.

Install the lubricating oil pan drain plug.

Fill the engine with clean gas engine lubricating oil to the proper level.

Use the following procedure for proper oil level specifications. Refer to Procedure 018-017 in Section V.

Idle the engine to inspect for leaks at the drain plug.

NOTE: Engine oil pressure must be indicated on the gauge within 15 seconds after starting. If oil pressure is not registered within 15 seconds, shut off the engine immediately to avoid engine damage. Confirm the correct oil level in the oil pan.

Shut the engine OFF. Wait approximately 5 minutes to let the oil drain from the upper parts of the engine. Check the level again.

Add oil as necessary to bring the oil level to the H (high) mark on the dipstick.