Finding Top Center Position for No. 4 Piston
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Do not open the high pressure fuel system without allowing the fuel system to purge. After the engine has shut down, allow the fuel system to purge for ten minutes. This operating fuel system contains high pressure. Exposure to high pressure fuel can result in personal injury. |
- Remove window cover (1) from flywheel housing (2).
- Rotate the flywheel counterclockwise and align the TDC mark on the gear with the TDC mark on the flywheel.
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Illustration 2 g06372608 (3) Idle gear timing mark
(4) Idle gear
(5) Fuel supply pump gear
(6) Fuel supply pump gear timing mark - If the fuel supply pump gear timing mark (6) meshes with the idle gear timing mark (3), piston number four is at TDC. If the timing marks do not mesh, rotate the flywheel counterclockwise one revolution and recheck the timing marks.
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| Illustration 1 | g03655634 |
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(1) Window cover
(2) Flywheel housing | |
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