10-21-2012, 11:24 PM
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#1
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4 Rivet Member
2002 31' Classic
Houston
, Texas
Join Date: Oct 2004
Posts: 442
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Onan Microquiet 4000 Maintenance
I just had to R&R the fuel pump on my “onboard” Onan Microquiet 4000 genset (33 amps @ 120 volts) and thought the forum might like to know my APPROXIMATE maintenance overhead the last 11 years with 1,009 hours of service:- Oil Changes - Once per year with 1.6 quarts Mobil 1 15W-50 @ ~$5.50 per quart.
- Valve Adjustment & Spark Plug – Only done once at ~500 hours (need to look at them again now that I have 1,009 hours on the clock); it’s a DIY in my case with ~$10 for a spark plug.
- Generator Slip Ring Brushes – Failed at 912 hours (kicked an “over frequency” fault code). This was a rather involved DIY job in tight quarters. Needed to purchase a Fluke 115 multi-meter (~$160) to be able to adjust the governor to set the frequency accurately. The brushes only cost ~$25.
- Fuel Pump – Failed at 1,009 hours; fairly easy DIY R&R at a cost of ~$70.
So my costs were ~$60 for oil + ~$10 for a spark plug + ~$25 for brushes + ~$160 for a Fluke multi-meter + ~$70 for a fuel pump, all totaling ~$325. I’d guestimate that having a dealer do the maintenance would cost ~$1,500+.
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