SEAL-O-RING 2147568 - 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    
3508     Compression     1-2-6-8     1-2-3-7     3-4-5-7    
Exhaust 3-4-5-7     4-5-6-8     1-2-6-8    
3512     Compression     1-3-6-7-10-12     1-4-5-6-9-12     2-4-5-8-9-11    
Exhaust 2-4-5-8-9-11     2-3-7-8-10-11     1-3-6-7-10-12    
3516     Compression     1-2-5-7-8-12-13-14     1-2-3-4-5-6-8-9     3-4-6-9-10-11-15-16    
Exhaust 3-4-6-9-10-11-15-16     7-10-11-12-13-14-15-16     1-2-5-7-8-12-13-14    
( 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. This 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    
3508     Compression     1-3-4-8     1-2-7-8     2-5-6-7    
Exhaust 2-5-6-7     3-4-5-6     1-3-4-8    
3512     Compression     1-3-4-6-7-12     1-4-5-8-9-12     2-5-8-9-10-11    
Exhaust 2-5-8-9-10-11     2-3-6-7-10-11     1-3-4-6-7-12    
3516     Compression     1-2-5-6-7-8-13-14     1-2-3-4-5-6-9-10     3-4-9-10-11-12-15-16    
Exhaust 3-4-9-10-11-12-15-16     7-8-11-12-13-14-15-16     1-2-5-6-7-8-13-14    
( 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. This 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.