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cj7365's avatar
cj7365
Explorer
Mar 04, 2015

Un Modifying (fuel pump related) Onan 4 Emerald BGE UPDATE

Just bought a 1995 Winnebago Brave 27ft, the onan generator runs, but someone bypassed the original fuel pump and install some after market one, and hooked up a 12v switch to turn the pump on, it work...
MrWizard's avatar
MrWizard
Moderator
Mar 04, 2015
I think if you goto Onan or Byrant RV you can download the service manual and schematics

we do have an Onan expert who is a member and very helpful..
maybe he will see your post

did you run the generator and then measure the voltage with the Onan running
the pump will be controlled by the control board and there will be NO voltage unless it is running

could be there was a control board failure, and the MOD was done to avoid buying a new control board

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