BLADE & EDGE GP-SEMI-UNIVERSAL 4918134 - Caterpillar

Refer to Table 4. Locate the engine timing calibration port.
Table 4
Location of the Timing Calibration Port    
Engine Model    Crankshaft Counterweight    Engine Location    
C7     3     Left Side    
C-9     3     Left Side    
C-10     8     Right Side    
C11     8     Left Side    
C-12     8     Right Side    
C13     8     Left Side    
C-15     2     Left Side    
C15     2     Left Side    
C-16     2     Left Side    
C18     2     Left Side    
Remove the plug from