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Old 04-30-2018, 08:44 AM   #1
Senior Member
Join Date: Aug 2014
Location: Collinsville, IL
Posts: 135
Rebuilding Generator--is it worth it?

I'm at the Cummins-Onan shop, with my 1999 Onan 7500 Quiet Diesel generator. It seems that, when I started it this spring, there was a lot of clunking inside, so I shut it down. It wouldn't crank over after that. It gave a 33 code, Service Required.

I just got an estimate of $3,600 to replace a damaged Stator assembly, rotor assembly. and fan. It would cost an additional $1,750 to include a new inverter in the package, but I'll gamble that the old one will still work. By the way, there are only 987 hours on the genset.

I've used the generator a total of 3 hours this past year, so I toyed with not spending the money to repair it. DW said don't fix it, but after joining the Cummins club, we've gotten the price down to around $3,000, so I decided to go ahead with the fix. For what it's worth, about $300 of cost is for removal and reinstallation of he generator.

It's painfully obvious that neither I nor any prior owner, has run the generator monthly, as recommended by the manufacturer. I figure, for the cost of these repairs, I could have exercised the genset for 2 hours a month for more than 13 years. Another expensive lesson learned.

But the question was, is it really worth repairing a generator on a 19-year old motorhome. DW contends that most folks will simply plug in somewhere and won't use the generator, just like us. For my part, I prefer that, if I have a generator, I want it to be operational, even if I seldom use it. I must admit, however, that, had the cost to rebuild been a little higher, I wasn't going to spend the money.

The moral of the story: EXERCISE YOUR GENERATORS.

Dale "MrK"
2012 Allegro Bus 36qsp
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Old 04-30-2018, 09:01 AM   #2
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96Bounder1st's Avatar
Monaco Owners Club
Fleetwood Owners Club
Join Date: Sep 2016
Location: Manitoba
Posts: 752
My 1996 Bounder has a 5000 Onan and under 200 hrs since new apparently. Since I bought it I have been doing the 2 hours of running , monthly, in the summer when we are using it. In the winter we are 3300 kmís away so it sits in cold storage.
I bought this MH as it had a generator and I would fix it if it quits. The convenience of power anywhere while seldom used is what I wanted.
Used a Honda 2000 in the previous 5er and appreciated power when needed.
Also can run the house A/C when driving to keep us cool.
All the best
2002 Monaco Windsor 40PKD. Marjorie 2.
2015 Equinox V6 Roadmaster tow setup
1996 Fleetwood Bounder 36S P32, AKA Marjorie in storage till spring then for sale.
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