Section 1.16 Engine Barring Tool

Section 1.16
Engine Barring Tool

A special tool is required for this procedure: Engine Barring Tool (J–46392) .‪

The engine barring tool (J–46392) is used for two separate functions: locking and cranking.‪

  • With the pin inserted, the tool locks the flywheel ring gear to prevent rotation during removal and installation of the flywheel.
  • Without the pin, the tool can be used with a wrench to turn the flywheel and crankshaft manually.

    Note: The first time an engine barring tool is installed on the engine to turn the flywheel, the teeth on the rotating gear may rub on the flywheel housing. This does not cause a problem and should not occur the next time the tool is used.

Section 1.16.1
Engine Barring Tool Installation

Install the engine barring tool (J–46392) as follows:‪

  1. Remove the two bolts holding the inspection cover to the flywheel housing. See Figure "Engine Barring Tool Installation" .
    Click to see this graphic in a separate window

     1. Inspection Cover‪

    Figure 1. Engine Barring Tool Installation

  2. Remove the pin from the engine barring tool (J–46392) .
  3. Install the tool in the flywheel housing and secure with two bolts of sufficient length.

    Note: The inspection cover bolts are not long enough to install the engine barring tool. Longer ones will be needed.

  4. As needed, insert the pin to lock the tool and block movement of the flywheel ring gear.

Section 1.16.2
Engine Barring Tool Removal

Remove the engine barring tool (J–46392) as follows:‪


The engine barring tool must be removed from the timing case before starting the engine. Failure to do so could damage the flywheel ring gear.‪

  1. Remove the two bolts and the barring tool from the flywheel housing. It is not necessary to remove the pin.
  2. Install the inspection cover on the flywheel housing with the two bolts. Tighten the bolts 25 N·m (18 lb·ft).

MBE 4000 Service Manual - 6SE412
Generated on 10-13-2008

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