ISC, ISCe, QSC8.3, ISL, ISLe3, ISLe4 and QSL9 Engines – 001-031   Gear Cover, Front

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 batteries. Refer to Procedure 013-009 in Section 13.
• Remove the drive belt. Refer to Procedure 008-002 in Section 8.
• Remove the vibration damper (rubber), if installed. Refer to Procedure 001-051 in Section 1.
• Remove the vibration damper (viscous), if installed. Refer to Procedure 001-052 in Section 1.
• If required, remove the fan hub pulley. Refer to Procedure 008-039.

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 batteries. Refer to Procedure 013-009 in Section 13.
• Remove the belt guard. Refer to Procedure 008-001 in Section 8.
• Remove the four fuel filter bracket mounting capscrews from the top of the cylinder head and the side of the gear housing. Refer to Procedure 006-018 in Section 6. Push the fuel filter and bracket to the side.
• Remove the drive belt. Refer to Procedure 008-002 in Section 8..
• Remove the vibration damper. Refer to Procedure 001-052 in Section 1.
• If required, remove the automatic belt tensioner. Refer to Procedure 008-080 in Section 8.

Remove the front gear cover.

Clean the residual sealant from the gear cover and gear housing gasket surface.

Inspect the gear cover for cracks or other damage.

Install a new seal in the carrier. Refer to Procedure 001-023 in Section 1.

NOTE: Install three guide pins, Part Number 3164977, to improve alignment of the front cover and front seal to the gear housing and crankshaft.

NOTE: Apply sealant to the inside of the bolt holes.

Apply a thin bead of RTV sealant 3 to 4 mm [.12 to .16 in] wide, Part Number 3164067 or equivalent, to the engine side of the front cover only.

Install the front cover on the engine within 10 minutes.

Tighten the front cover capscrews in the sequence shown.

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 seal carrier on the front cover. Refer to Procedure 001-023 in Section 1.
• Install the vibration damper (rubber), if installed. Refer to Procedure 001-051 in Section 1.
• Install the vibration damper (viscous), if installed. Refer to Procedure 001-052 in Section 1.
• Install the drive belt. Refer to Procedure 008-002 in Section 8.
• Connect the batteries. Refer to Procedure 013-009 in Section 13.
• Operate the engine and check for leaks.

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 seal carrier on the front cover. Refer to Procedure 001-023 in Section 1.
• Install the automatic belt tensioner, if removed. Refer to Procedure 008-080 in Section 8.
• Install the vibration damper. Refer to Procedure 001-052 in Section 1.
• Install the drive belt. Refer to Procedure 008-001 in Section 8.
• Install the fuel filter bracket. Refer to Procedure 006-018 in Section 6.
• Install the belt guard. Refer to Procedure 008-001 in Section 8.
• Connect the batteries. Refer to Procedure 013-009 in Section 13.
• Operate the engine at idle for 5 to 10 minutes and check for leaks or loose parts.