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Old 08-07-2014, 06:58 PM   #15
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Onan with 4500+ hours and going strong.

Ronnie (WD5GIC) & Jan (WD5IHU)
2003 Monaco Dynasty Countess 42' w/tag, 2012 Ford Flex

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Old 08-07-2014, 06:59 PM   #16
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365 on mine.

2011 40' Monaco Cayman PBQ ISC 360
2013 Jeep Wrangler Unlimited
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Old 08-07-2014, 07:06 PM   #17
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Originally Posted by Nxkharra View Post
Ours is Onan 5000. One year old. Have used it once or twice. I start it occasionally when on the road. Not that often. Should I start it more? Anything else I need to do? They say it needs workout??

I believe the rule of thumb is you should exercise the generator regularly, every month or two, and with a load on it such as the airconditioners in the summer or electric heaters in the winter. Run it long enough so that it warms up completely - half an hour or more.
Bob, Sandi & Marmaduke the Big Pug
SW OREGON 2004 Journey 39K, 330 Cat
If towing: a 2006 Mini Cooper or 2015 RAM Limited 4X4
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Old 08-07-2014, 07:12 PM   #18
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9 year old QD 7500. Only has 765 hours but we are working on that problem. LOL Because of the limited info on previous genny service we opted to do the 1000 hour/5 year service this summer. Glad we did for a couple items that actually needed replacement and peace of mind.

BTW...the biggest surprise was that ALL 4 BOLTS that held our genny to the front slide rail were GONE! According to the tech, missing bolts are not rare at all but all 4 being gone is extreme but not unique. The problem seem rooted in the self tapping bolts used to mount the genny to the rails that get over torqued. They drilled and tapped all 4 mounting bolt holes to correct the problem.
Don, Sandee & GSD Zeus. Guardian GSDs Gunny (7/11/15) & Thor (5/5/15)
2006 DSDP 4320, Spartan MM IFS, 2013 CR-V, Blue Ox Avail, SMI AF1, Samsung 197R Refer.
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Old 08-07-2014, 07:40 PM   #19
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Air Filter

Have a 1999 7500 onan where is the air filter
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Old 08-07-2014, 07:42 PM   #20
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Somewhere between 1,300 and 1,400 hours on mine. Runs great, service it annually.
Paul (KE5LXU) ...was fulltimin', now parttimin'
'03 Winnebago UA 40e / '05 Honda Odyssey toad
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Old 08-07-2014, 07:43 PM   #21
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Originally Posted by comanche View Post
Have a 1999 7500 onan where is the air filter
in the front passenger side
97 Holiday Rambler Endeavor 275 Cat powered
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Old 08-08-2014, 05:18 AM   #22
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The 7.5 Onan in our old 91 Beaver had 3000+ hours on it and going strong. Had to replace the fuel pump twice. The 12.5 Onan on our Monaco has 1400+ hours and usually runs whenever the coach is moving. Absolutely runs great. We like to be comfortable when traveling, so we run the roof AC most of the time.
Monaco 2004 Signature 45' Castle IV Detroit 60
Towing 2015 Jeep Grand Cherokee diesel
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Old 08-08-2014, 08:08 AM   #23
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Here's a picture of the fuel filter ripped open. This is the one that came with the coach when I bought it. Judging the color and residue, I think this one was way past it's replace interval:

1999 HR Endeavor 37WDS
Handicapped Lift Equiped
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Old 08-09-2014, 08:31 PM   #24
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Our 2002 Fleetwood Bounder 39r with 330hp Turbo Diesel has 115.000 miles. The Onan 7.500 Generator has 4,436 hrs on it. Both have no problems beside regular service.
Happy Travel
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Old 08-09-2014, 08:51 PM   #25
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12.5 Onan diesel with 5300+ hours. Normal scheduled maintenance with no issues so far. I was also told to expect well over 10k hours with proper care.
'98 Signature 42' Classic Suite purchased July 2000
Toads: (4 down) Jeep Grand Cherokee, Chevy 2500HD 4x4, or Scout Terra
Trailers: 28' HRC Stacker, 24' Look; contents vary per trip
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Old 08-09-2014, 08:58 PM   #26
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How many hours on your diesel genny?

Our '02 DS has about 63k miles and the 7.5 Onan about 780 gen hrs. The first two owners put on 45k miles and 425 hrs in 10 years. I've put on 18k miles and 350 hrs in 2 years. Running fine.
John & Diane, Fulltimers. RVM103 NHSO
On the road since June '12 with Lincoln, the guard cat.
2002 Dutch Star 40, Freightliner, Cat 3126, 2004 Element
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Old 08-09-2014, 09:00 PM   #27
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My Onan 8K will outlast me. Way more hours on me than the Genny.
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Old 08-10-2014, 02:39 PM   #28
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Parents RV - Onan 10K 4500 (2000 Model Year)

MyRV - Powertech 8000 - 1135 (2005)

Grooming Van - Onan RVQD8000- 1430 (2013)

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