CYLINDER HEAD GP 3172440 - Caterpillar

Introduction
For specifications, refer to the Specifications For 3176C & 3196 Marine Engines, RENR1231. If the Specifications in RENR1231 are not the same as in the Systems Operation, Testing & Adjusting, look at the printing date on the back cover of each book. Use the Specifications given in the book with the latest date.Troubleshooting
To troubleshoot engine problems refer to Troubleshooting, 3176C & 3196 Marine Engines SENR1170.Electronic Control System
Diagnostic Codes
For an explanation of each diagnostic code see the 3176C & 3196 Marine Engines Troubleshooting.Active Diagnostic Codes
Diagnostic codes are used by the 3176C & 3196 Marine Engines System to warn the vessel operator of a problem and indicate to the service technician the nature of the problem. Some codes are used only to record an event and do not indicate problems that need repair.An ACTIVE diagnostic code represents a problem that should be investigated and corrected AS SOON AS POSSIBLE. Repairing the cause of an ACTIVE code will cause the code to be cleared.When an ACTIVE code is generated, the diagnostic lamp will turn ON and remain ON, blinking every five seconds. If the condition generating the fault occurs only for a brief moment, the lamp will go OFF after five seconds and the code will be LOGGED.There are a few codes which are not a response to a performance problem, but merely record an event such as 01, 35, 41, 47 and 55. In these cases troubleshooting is not required.Some Diagnostic Codes cause the 3176C & 3196 Marine Engines System to make major changes in engine operation or limits, as a result of the code being generated.Logged Diagnostic Codes And Events
When the ECM generates a diagnostic code, it usually logs the code in permanent memory within the ECM. The ECM has an internal diagnostic clock and will record the hour EACH time a code is logged. Knowing when and how often the code was generated can be a valuable indicator when troubleshooting intermittent problems. Logged codes can be retrieved or erased using an electronic service tool. They can be a valuable indicator when troubleshooting intermittent problems.* Diagnostic Codes that are logged repeatedly may indicate a problem that needs special investigation. Codes that are logged only a few times and do not result in operator complaints, may not need attention until a scheduled maintenance interval. To troubleshoot a Logged Diagnostic Code, refer to the "Troubleshooting Diagnostic Codes" section in the 3176C & 3196 Marine Engines Troubleshooting. If symptoms continue, refer to "Troubleshooting Without A Diagnostic Code" section in the 3176C & 3196 Marine Engines Troubleshooting.* The most likely cause of an intermittent problem is a faulty connection or damaged wiring. Next likely is a component failure (sensor or switch for example). Least likely is the ECM itself.Electronic Service Tools
The Caterpillar Service Tools for the 3176C & 3196 Marine Engines Electronic Control System are designed to help the service technician:* Diagnose Faults And System Problems* Calibrate Sensors* Program Parameters* Read Trip Data* Read Status Of Sensors/SwitchesThe 3176C & 3196 Marine Engines require