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09-03-2012, 12:48 AM | #31 |
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Re: Onan info
Where do you guys read these codes? I have a 7000 marquis, I think its a 1999 year model. I have had to replace the fuel pump several times in the last few years. After the original onan pump quit I replaced it with a $50 low pressure pump from the Advanced Auto part because we were at a race when it gave up. The $50 pumps look just like the onan pump, but they don't seem to last very long. Is the Onan pump really worth the $260 they cost?
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09-03-2012, 12:52 AM | #32 | |
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Re: Onan info
Quote:
To get the code, press the stop/prime button 3x within 5 seconds. It'll then blink a single digit. Press it one more time, and it'll blink a two-digit code. A fuel pump problem will generate a generic 36 - which stands for fuel delivery problem. Could be a pump issue, low fuel level, leaking fuel line, gummed carb, or anything else that causes the genny to starve of fuel. It's probably one of the more common codes. |
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09-03-2012, 01:26 AM | #33 |
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Re: Onan info
I don't have any type of digital readout. Are you saying that the light on the start button will blink a code? Mine has a remote start button with a analog style hour meter.
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09-03-2012, 01:44 AM | #34 | |
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Re: Onan info
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In either case, you count the blinks. Remember, the first blinks after pressing the stop button 3x will be either a 1, 2, 3, or 4. But it'll be only a single digit. It'll keep flashing the same digit, until you press stop one more time. Then it'll be flashing two digits... i.e. 3 blinks, pause, 6 blinks = 36. Happy hunting. |
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09-03-2012, 02:04 AM | #35 |
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Re: Onan info
Got it, thanks.
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09-03-2012, 08:16 AM | #36 |
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Re: Onan info
A 1999 model is probably the old design. Flathead engine. Does it have a black sheet metal cover? Big square type box? They made a 7000 Marquis back then. The best unit they ever made......Electronic governor, quiet 1800 rpm.....
If it is the old design they did not have the self diagnosing feature of the newer design units..... Onan parts prices are pretty high and they are owned by Cummins.... I have seen a lot of bad fuel pumps on many different models. I don't doubt the fuel is killing some of them....
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Rich Biebel S/C 1479 Stock 147R |
09-05-2012, 05:06 AM | #37 | |
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Re: Onan info
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09-05-2012, 09:55 AM | #38 |
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Re: Onan info
No real reason to buy strictly an Onan pump Darren other than using OEM parts and having a good direct replacement fit.
We sell.service and install Onans so that is what we use and install. Facet makes pumps that will work and so do some other companies. LOW pressure pumps only.......Or the needle and seat will not hold... They make about 3-4 lbs max.... Onan is no different than every other company out there. They make $$$ on parts..... That unit you have is the best one they ever made in my opnion. Carbon buildup is something they do if used a lot and they do need to be taken apart and thouroughly cleaned once they start to have running problems.....
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Rich Biebel S/C 1479 Stock 147R |
09-05-2012, 11:02 AM | #39 | |
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Re: Onan info
Been there, done that, with the carbon issue. Thanks for the info.
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09-05-2012, 05:02 PM | #40 | |
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Re: Onan info
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Took this to 2 different dealers. Both said the Stator was shot and wanted 1300 by one dealer and 2000 by the other. Cummins Bridgeway in Columbus sold us a complete new one for 2550. I guess I have a bunch of spare parts. This one is a model 4.0KY-FA 26100K. It looks identical to me but I'm sure some things are not interchangeable. Thanks for your help getting us through the generator blues.
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