builder318

I have a John Deere 318 with the P218 Onan Engine. I am having a problem with it shutting down when it gets hot(after an hour or so). and the fuel filter will be dry. It will not start up for about 30-45 minutes the will start and run for 30-45 minutes before shutting down again with a dry fuel filter. This has bee doing this for about 2 months. About 2 weeks ago it did this and after I got it restarted, I finished mowing and it died just as i pulled into the shed. I went back the next day and it would not start even though there was fuel in the filter. I disconnected the fuel line on the fuel pump side of the filter and turned the motor over and it was pumping gas so I reconnected and disconnected the fuel line on the carb side of the filter and it was pumping gas. I eventually found a had a bad coil. Replaced it and she fired right up. Cut for a bout an 1 1/2 hour no problem. The next day I cut for about 1 1/2 hour and she died with dry fuel filter. Waited a while and she started up and ran for a while the same problem, dry fuel filter. When she dies she will turnover but will not start. Any suggestions.

jhngardner367

Check the PRESSURE of the fuel pump,not just the volume.It should hold 4-6 psi.If it does,check the fuel lines for clogging,leaks,etc. If the fuel lines haven't been changed,you may want change them,since the ethanol in todays fuel degrades the lines,from inside-out. It will run awhile,but as the lines swell,it closes off the fuel flow.

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crazyhorse

Make sure the vent in the gas cap is open.
Good luck.