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2005 Onan Marquis Gold 5500


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Old 04-12-2018, 03:58:32 PM
marysdad marysdad is offline
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Default 2005 Onan Marquis Gold 5500

Have access to one of these that was removed from a toy hauler that had a tree fall on it (not on the genny, though). Says it was running at the time.

I figured out from the serial number that it was made in 2005. Not able to decipher the model number using the info in the sticky.

Model: 5.5HGJAB-1038D

It is a gasoline model. Trying to assess whether this is worth getting running and convert to propane for use in a fifth wheel. To the good, there is a box of extras that includes a new carb in a plastic bag.

What would be the steps to perform before trying to start it to see if it will run, assuming that it sat a couple of years?
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Old 04-12-2018, 04:03:31 PM
len k len k is offline
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Default Re: 2005 Onan Marquis Gold 5500

Might want to clean genhead slip rings before making AC. (they oxidize if they sit)

Haven't heard it on these yet , but the older model Marquis design ( BGM/NHM , horzontal shaft design) had a problem with the $245 AC voltage regs dieing if gen sat for months without cleaning slip rings
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