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Old 11-27-2009, 12:32 AM   #1
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Replacing Spark Plug Onan Microlite 2800

Ok, so it's time to replace the spark plug on our Onan Microlite 2800. What, in an ideal world, "should" be a simple job.

I popped off the tiny access cover to change out the spark plug. Only to discover that the geniuses who designed the thing made it virtually impossible for those with normal hands and fingers to do.

I know somebody on irv2 has replaced this spark plug. Given the extremely tight access, how did you get the plug wire off the end of the plug? I have a spark plug wire puller that works great on vehicle engines, but the clearance is so tight on the Microlite 2800 that I cannot seem to get a good grip. I don't want to risk damaging the spark plug wire. I'm sure replacing that particular item would be a REAL nightmare.

Anybody know what replacement Champion spark plug to use? I'm sure I can get one cheaper at the auto parts store than what an Onan dealer would charge.

Thanks, Tom

1996 Fleetwood Bounder 38Z, Ford F53 chassis, 460 motor
1996 Pleasure-Way STW, Dodge B3500 chassis, 318 motor
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Old 11-27-2009, 02:53 AM   #2
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You will have to drop the genereator at least some, to remove cover enough, to change the spark plug out. I know, it is not the best design!
Mike, RVIA & RVSA Certified Master RV Technician
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