7500 Onan Gen won't stay running.
Hi all, 2002 Holiday Rambler with 7500 Onan gen. Ran gen 12 hours yesterday ran just fine. Now when I start it up it runs for maybe 30 seconds then stops. 1. Diesel tank is full 2. Changed out air...
Forum Discussion
Kit,
I have lots of diesel experience, and what you have sounds very much like a "low side leak". That means that part of the fuel system where the fuel is being drawn in has a leak that lets air in. This is why bleeding is a temporary fix. These things are a bear to find, but look for anyplace that has external evidence of fuel that should be dry.
I have most often found these leaks in the base gasket of screw on fuel filters. It does not take much and a crease or wrinkle will do it. Get your cloves out, you will end up with fuel on your hands....
Good Luck
Matt
I have lots of diesel experience, and what you have sounds very much like a "low side leak". That means that part of the fuel system where the fuel is being drawn in has a leak that lets air in. This is why bleeding is a temporary fix. These things are a bear to find, but look for anyplace that has external evidence of fuel that should be dry.
I have most often found these leaks in the base gasket of screw on fuel filters. It does not take much and a crease or wrinkle will do it. Get your cloves out, you will end up with fuel on your hands....
Good Luck
Matt
