We spend a great deal of time dry camping. I have always performed oil changes and air filter changes myself. Our onboard Onan RV QG 5500 started "sputtering" when under full load. I've used SeaFoam to clean the generator intake and it has helped. But the last few uses, the unevenness of the idle has not cleared up. With 650+ hours on the generator, I decided to changes the spark plugs (I found out the manual recommends changing at 500 hours).
I looked all through the internet with little success on information. Not much around. Just finding the location of the plugs was purely by feel as seeing the plugs isn't possible in our coach.
I did read inputs from others on tools and approach. So I decided to document with pics the where the plugs are at and tools I used.
Once you find the plugs by feel, changing them took me about 20 mins. Plug #2 (as shown in the attached PDF) is the toughest one - simply because of limited access. Also note that following the suggesting of others, I removed the rubber rings from the plug wrench.
Hope this helps.
Note: I posted this over at Thor Forums also
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US Army Retired - loving it in our Challenger 37TB.
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bigben: Just wondering, did changing your spark plugs solve the sputtering issue on your genset?
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1996 34'J Fleetwood Bounder, Chevy 454 TBI P-32, Bank PowerPack, Ultra Power Chip, BellCranks, Rear Trac Bar, Silver Safe-T-Plus and 04 CR-V Toad, Roadmaster Base Plate and All Terain Tow Bar, SMI Stay-In-Play DUO.
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