PLATE 1846391 - Caterpillar

Table 1
Counterclockwise Rotation (Standard) from the Flywheel End of the Engine
Cylinders to Check/Adjust
Engine Correct Stroke For No. 1 Piston At Top Center Position(1) Inlet Valves Exhaust Valves Injectors
3512 Compression 1-2-3-4-7-8 1-2-5-8-9-10 5-6-9-10-11-12
Exhaust 5-6-9-10-11-12 3-4-6-7-11-12 1-2-3-4-7-8
(1) Put the No. 1 Piston at the top center (TC) position and identify the correct stroke. Refer to Testing and Adjusting, "Finding the Top Center Position for the No 1 Piston". Find the top center position for a particular stroke and make the adjustment for the correct cylinders. Remove the timing bolt . Turn the flywheel by 360 degrees in the direction of normal engine rotation. Turning the flywheel will put the No. 1 piston at the top center (TC) position on the other stroke. Install the timing bolt in the flywheel and complete the adjustments for the cylinders that remain.
Table 2
Clockwise Rotation (Reverse) from the Flywheel End of the Engine
Cylinders To Check/Adjust
Engine Correct Stroke For No. 1 Piston At Top Center Position(1) Inlet Valves Exhaust Valves Injectors
3512 Compression 1-2-3-7-8-10 1-2-5-6-9-10 4-5-6-9-11-12
Exhaust 4-5-6-9-11-12 3-4-7-8-11-12 1-2-3-7-8-10
(1) Put the No. 1 Piston at the top center (TC) position and identify the correct stroke. Refer to Testing and Adjusting, "Finding the Top Center Position for the No 1 Piston". Find the top center position for a particular stroke and make the adjustment for the correct cylinders. Remove the timing bolt . Turn the flywheel by 360 degrees in the direction of normal engine rotation. Turning the flywheel will put the No. 1 piston at the top center (TC) position on the other stroke. Install the timing bolt in the flywheel and complete the adjustments for the cylinders that remain.