ROD 3237372 - Caterpillar

maintenance has been performed on the ignition system, check the timing of the ignition system. Adjust the timing, if necessary.Ignition timing for gas engines varies with the gas chemistry. Obtain a fuel analysis in order to determine if the timing for the ignition system is correct. Enter the data from the fuel analysis into the Caterpillar Software Program, LEKQ6378, "Methane Number Program". Alternatively, you may provide the results of a gas analysis to your Caterpillar dealer for assistance in determining the correct timing for your application.Use the Caterpillar Electronic Technician (ET) to adjust the timing. Adjust the timing according to the instructions in Special Instruction, "Installation and Initial Start-Up Procedures For G3500B Engines". Consult your Caterpillar dealer for assistance.