SHIELD 7C1187 - Caterpillar

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. Evaluate the fuel with the Cat methane number program that is contained in Gas Engine Rating Pro (GERP). 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 Cat Electronic Technician (ET) to adjust the timing. Adjust the timing according to the instructions in Special Instruction, REHS1438, "Installation and Initial Start-Up Procedures for G3500C and G3500E Engines". Consult your Cat dealer for assistance.