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Old 06-17-2013, 10:21 PM   #1
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Onan Fuel Filter

Changing fuel filter from outside of an Onan 4000.
I see no excess panel on bottom.
No way I can get at it from inside.
Suppose to be able to do from outside.
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Old 06-18-2013, 06:29 AM   #2
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My 4000 is older but look on the bottom right side it is made on the fuel pump nothing more than a screen
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Old 06-18-2013, 07:20 AM   #3
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RVTN: I had this same problem and was told by Onan it had to be done by a service center. I never took it in, sold the rig.
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Old 06-18-2013, 07:44 AM   #4
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Quote:
Originally Posted by whem2fish View Post
My 4000 is older but look on the bottom right side it is made on the fuel pump nothing more than a screen
Fuel pump and filter are on bottom left. Facing gen.
Screw on filter.

Stupid ending ever design. To hide something or make it so hard to get at.
.
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Old 06-18-2013, 03:04 PM   #5
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Got it figured out.
Remove hose clamp, than hose, than filter. There is a rubber seal there also.

Almost had it running without doing this.
Sprayed carb cleaner before and while running in air intake. Was running good and longer. So much for the easy way.
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Old 06-19-2013, 07:15 AM   #6
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Mine had an inline filter that was impossible to access. A panel had to be removed to get to it. None on my carb 2006 model.
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Old 06-19-2013, 07:28 PM   #7
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I get a Code 36.
Changed AF today. Checked spark plug and conn.
Have FF. need a deep socket. H
All mine are not deep ones. Either are my pockets.
Will get one from SIL when he gets home.
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Old 06-20-2013, 06:08 PM   #8
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As I have posted on other forums.
Today was a wasted day.
Replaced FF with help of DW today.
Many words were said. But not the her.

What is the PITA is I still have same problem.
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Old 06-20-2013, 06:58 PM   #9
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If its a gas unit you must have 1/4 tank of fuel in the rig to run the genny. Yes I found out the hard way
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Old 06-20-2013, 08:21 PM   #10
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Yes gas tank is full.
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Old 06-22-2013, 04:55 PM   #11
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I am giving up on this beast.
My JD is running out. So is my patience.
I can live without the gen. Not sure about DW and dogs.
I have A/C up front.

Anyone want a Green boat anchor?
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Old 06-24-2013, 12:39 PM   #12
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RE: Gen problem(s)....

Quote:
Originally Posted by rvten View Post
As I have posted on other forums.
Today was a wasted day.
Replaced FF with help of DW today.
Many words were said. But not the her.

What is the PITA is I still have same problem.
Tom:

I have an '06 Cambria 26A [bought new] that had similar problems with the Onan genset. The resolution was replacement of the "intermittent" fuel PUMP! Apparently Onan had some "design" problems at the factory which resulted in fuel pump deficiencies on some delivered units. On mine a simple voltage test confirmed the pump's failure & subsequent generator stoppage after a brief running period.

As a suggestion, if you decide to re-tackle your generator & remove the pump, do make sure you bring it along to the small engine repair shop [or other rebuilder in your area] so that they can order the correct one for your Winnebago unit. It took my repair facility a couple of tries to get both the fuel filter & fuel pump right to replace OEM. Otherwise, because of space restraints in the gen compartment some "other" [than OEM] designs won't fit!

Ask me how I know......
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