ISC, ISCe, QSC8.3, ISL, ISLe3, ISLe4 and QSL9 Engines – 001-046   Piston Cooling Nozzle

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 Procedure 013-009 in Section 13.
• Drain the lubricating oil. Refer to Procedure 007-037 in Section 7.
• Remove the lubricating oil pan. Refer to Procedure 007-025 in Section 7.
• Remove the lubricating oil suction tube. Refer to Procedure 007-035 in Section 7.

Banjo Bolt Mounted

Remove the piston cooling nozzle capscrews and nozzles.

NOTE: The crankshaft must be rotated to allow access to remove the nozzles.

Flange Head Capscrew Mounted

Remove the piston cooling nozzle capscrews and nozzles.

NOTE: The crankshaft must be rotated to allow access to remove the nozzles.

NOTE: On engines with the speed indicator ring mounted to the crankshaft, the number six (6) piston cooling nozzle can not be removed without first disconnecting the connecting rod from the crankshaft and moving the piston out of the way. Also, a crows foot socket will be required to access the capscrew.

Main Bearing Saddle Mounted

WARNING  This assembly weighs 23 kg [50 lb] or more. To reduce the possibility of personal injury, use a hoist or get assistance to lift this assembly.

Remove the block stiffener plate.Refer to Procedure 001-089 in Section 1.

Remove the crankshaft.Refer to Procedure 001-016 in Section 1.

NOTE: Number three saddle does not have nozzles.

Remove the piston cooling nozzles or plugs by pressing from the top with an appropriate size punch.

NOTE: Do not reuse the saddle jet piston cooling nozzles or plugs once removed.

NOTE: Blocks which use saddle jet piston cooling nozzles may be machined for Banjo Bolt Mounted piston cooling nozzles as well. If this is the case, capscrews will be installed in the Banjo bolt mounted piston cooling nozzle location. If it is necessary to remove these capscrews, follow the Banjo bolt mounted piston cooling nozzle removal procedure.

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

WARNING  Some solvents are flammable and toxic. Read the manufacturer’s instructions before using.

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

Clean the piston cooling nozzles and capscrew with solvent.

Dry with compressed air.

Inspect the piston cooling nozzles for flow restriction or any other damage. Replace if necessary.

NOTE: Do not reuse the saddle jet piston cooling nozzles or plugs once removed.

Banjo Bolt Mounted

CAUTION  Properly align nozzles in the locator notch before tightening the capscrews.

Install the nozzle, washers, and capscrews.

Tighten the capscrews.

NOTE: The crankshaft must be rotated to allow access to install of all the nozzles.

Flange Head Capscrew Mounted

Install the piston cooling nozzles and capscrews.

Tighten the capscrews.

Main Bearing Saddle Mounted

WARNING  This assembly weighs 23 kg [50 lb] or more. To reduce the possibility of personal injury, use a hoist or get assistance to lift this assembly.

CAUTION  Do not use a hammer to install the piston cooling nozzles. Use hand pressure only. Use of a hammer can cause component damage.

Install the nozzles, two per saddle.

Push the piston cooling nozzle or plug into place by hand.

Use a flat punch to push the nozzle or plug into the recess.

NOTE: Blocks which use saddle jet piston cooling nozzles may be machined for Banjo Bolt Mounted piston cooling nozzles as well. If this is the case, capscrews will be installed in the Banjo Bolt Mounted piston cooling nozzle location. If previously removed, follow the Banjo Bolt Mounted piston cooling nozzle installation procedure.

NOTE: Number three saddle does not have nozzles.

Install the crankshaft.Refer to Procedure 001-016 in Section 1.

Install the block stiffener plate.Refer to Procedure 001-089 in Section 1.

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.

• Install the lubricating oil suction tube. Refer to Procedure 007-035 in Section 7.
• Install the lubricating oil pan. Refer to Procedure 007-025 in Section 7.
• Fill the engine with lubricating oil. Refer to Procedure 007-037 in Section 7.
• Connect the batteries. Refer to Procedure 013-009 in Section 13.
• Operate the engine and check for oil leaks.