02-16-2017 10:34 PM
You said that you had a bad buffer and replaced it on cyl. 3. Did you have the cyl 3 code 503-09 also with 505-09, 507-09, and 511-09 Ignition Failed? If you had this condition, then it is likely that the buffer on cyl. 5 might be bad. In this vintage G3612, I believe the buffers were wired in what Cat called a "daisy chain". That means that if a buffer failed, then the rest of the buffers in that chain would also "fail" or show the fault code 5xx-09. So now if the cyl 5 buffer is bad, then the rest of the odd bank cyl will also show the 5xx-09 code.
The other thing to remember is that the engine will run with one 5xx-09 fault code, not flashing. If a second 5xx-09 occurs while the first one is still active, then the engine will shut down and the second 5xx-09 will be flashing. The engine will not run with more than one 5xx-09; a second one will cause the engine to stop.
Do you have the Troubleshooting Manual SENR6510-05? This is the latest (and last) troubleshooting manual for the ESS. Do not use the -04 version; it has lots of mistakes in it?
02-16-2017 09:24 PM
Ii need to know which engine this is. Is this an old ESS engine with a magneto? Does it have the CIS ignition on it; no magneto but a small ignition box on the ritght rear upper side of the engine. What is the serial number? I will need this infomation to better respond to your problem. Thanks.
02-16-2017 07:47 PM