PLUG 3727342 - Caterpillar

Table 1
Standard Rotation (Counterclockwise) As Viewed From Flywheel End    
Cylinders To Check/Adjust    
Engine     Correct Stroke For No. 1 Piston At Top Center Position (1)     Inlet Valves     Exhaust Valves     Injectors    
3512B     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    
( 1 ) Put the No. 1 Piston at the top center (TC) position and identify the correct stroke. Make reference to Testing And Adjusting, "Finding Top Center Position For 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.