ISC, ISCe, QSC8.3, ISL, ISLe3, ISLe4 and QSL9 Engines – 010-080   Air Intake Connection

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.

• Disconnect the battery. Refer to Procedure 013-009 in Section 13.
• Disconnect the grid heater wiring.
• Remove the air inlet crossover tube. Refer to Procedure 010-019 in Section 10.
• Remove the air inlet connection, if equipped. Refer to Procedure 010-022 in Section 10.
• Remove the injector supply lines, if required. Refer to Procedure 006-051 in Section 6.
• Disconnect the injector pass-through for the number 3 and 4 cylinders.
• Disconnect the air compressor air supply tube from the bottom of the air intake connection.

Remove the mounting capscrews.

Remove the air intake connection.

Tape off the intake manifold opening to prevent debris from entering the intake system.

NOTE: Be sure not to tape over the entire manifold edges so that the surface can be cleaned.

NOTE: On engines with the grid heater mounted on top of the intake manifold cover, the grid heater will now be loose.

Clean the sealing surfaces.

NOTE: Keep gasket material and any other material out of the air intake.

Inspect the air intake connection for cracks or other damage.

Install the air intake connection. Use a new gasket.

NOTE: Some capscrews are shared with fuel line braces on some engines.

NOTE: On some engines, the air intake connection mounts on top of the grid heater and shares capscrews.

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.

• Connect the electrical connections to the injector pass-through for the number 3 and 4 cylinders.
• Install the injector supply lines, if removed. Refer to Procedure 006-051 in Section 6.
• Connect the air inlet connection, if equipped. Refer to Procedure 010-022 in Section 10.
• Install the air crossover tube. Refer to Procedure 010-019 in Section 10.
• Connect the cold starting aid.
• Connect the air compressor air supply tube to the bottom of the air intake connection using a new o-ring seal.
• Connect the battery. Refer to Procedure 013-009 in Section 13.
• Operate the engine and check for leaks.