| [GMCnet] Fuel Starvation When Onan Runs [message #312882] |
Tue, 07 February 2017 10:29  |
bdub
Messages: 1578
Registered: February 2004
Location: Central Texas
Karma:
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Senior Member |
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This came up on Facebook this morning. One suggested possible cause intrigues
me. I'd like some of your opinions on its merit as my eletrical/electonics
knowledge is limited to keeping the smoke contained.
1977 Eleganza II (455) with new OEM fuel pump as well as an electric backup.
Concern:
When I drive the coach it runs fine, when I drive it with the generator on for
the roof air, the coach engine is starving for fuel. Almost seems like the vent
isn't letting enough air in.
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Explanation:
The problem may be coming from the Onan generator itself. Although not common it
is possible that one(1) diode of the bridge rectifier has opened. If this has
happened you may be inducing enough alternating current in to the ground and
wiring to interfere with the electronic module in the distributor. The same
thing happens when the engines alternator has only one diode fail open. Not very
common, but it does happen. If you still have regular light bulbs in the coach
you might notice a slight flickering of the light - like what you see in a
fluorescent light.
Does this explanation have merit?
Thanks
bdub
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bdub
'76 Palm Beach/Central Texas
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