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| Re: Dual-Fuel Generator at Costco [message #203324 is a reply to message #203320] |
Mon, 01 April 2013 17:18   |
kerry pinkerton
Messages: 2565
Registered: July 2012
Location: Harvest, Al
Karma: 15
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I have what appears to be the same generator in a single fuel model. Just about positive it's made in China but that isn't necessarily a bad thing. Mine runs great and although it is set up for electric start, it pulls easily and has always started on the first or second pull. Noisy however.
Kerry Pinkerton - North Alabama
Had 5 over the years. Currently have a '06 Fleetwood Discovery 39L
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| Re: [GMCnet] Dual-Fuel Generator at Costco [message #212453 is a reply to message #212447] |
Thu, 27 June 2013 01:01 |
Guy Lopes
Messages: 499
Registered: April 2004
Location: Sacramento, CA
Karma: 3
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Ken,
I'm leaning in that direction. Could anything be done to quiet it down any?
Maybe a slightly different muffler?
Thanks,
Guy
-----Original Message-----
From: gmclist-bounces@temp.gmcnet.org
[mailto:gmclist-bounces@temp.gmcnet.org] On Behalf Of Ken Henderson
Sent: Wednesday, June 26, 2013 10:09 PM
To: gmclist
Subject: Re: [GMCnet] Dual-Fuel Generator at Costco
That's very similar to the TroyBilt unit I installed. While mine is perhaps
a little noisier than the old Onan, it's certainly not a problem for us
inside during the short times we normally use it. Once I solved the fuel
pump problem by using a crankcase pressure fluctuation operated pump, it's
been completely reliable and trouble-free. It starts easily and runs as
long as we want it to, powering everything in the coach better than shore
power -- what more could we ask?
http://www.gmcmhphotos.com/photos/g5330-troybilt-generator-installation.html
Ken H.
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Guy Lopes
76 Birchaven "Orion"
Sacramento, CA
W6TOL
www.GMC-Guy.com
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| Re: Dual-Fuel Generator at Costco [message #212492 is a reply to message #212457] |
Thu, 27 June 2013 10:37 |
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Matt Colie
Messages: 8547
Registered: March 2007
Location: S.E. Michigan
Karma: 7
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| Francois wrote on Thu, 27 June 2013 07:44 |
I don't think adaptation of these one cylinder generators presents any insurmountable engineering challenges. Especially if the cylinder head is not vertical, it should fit in our drawers. 12v fans of a whole variety of sizes (most designed for radiator cooling) are easy to find online.
The issue is noise. They are loud. When I think of all the one cylinder engines I have ever heard run, whether they be lawn mowers, generators or motorcycles, they have always been loud.
Harbor Freight advertises Chinese one cylinder generators with the ad touting how "Super Quiet" they are. I am guessing, but I think that probably just means that it is slightly quieter than other one cylinder motors.
My Onan isn't the quietest thing, but I wonder if a two cylinder system might be inherently quieter.
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Francois,
About a hundred years ago a (honestly near forty), a genius engineer friend designed and built a very effective small engine muffler. When we put it on a little B&S it became clear why nobody would be interested. That engine was so mechanically noisy that the muffler's real value was hiding that fact.
Part of the reason Onans are not so unpleasant is that they are 1800 RPM units. This does a while lot for being nice.
Matt
I have though about my Onan,
Matt & Mary Colie - Chaumière -'73 Glacier 23 - Members GMCMI, GMCGL, GMCES
Electronically Controlled Quiet Engine Cooling Fan with OE Rear Drum Brakes with Applied Control Arms
SE Michigan - Near DTW - Twixt A2 and Detroit
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| Re: [GMCnet] Dual-Fuel Generator at Costco [message #212541 is a reply to message #212457] |
Thu, 27 June 2013 15:20 |
jhbridges
Messages: 8412
Registered: May 2011
Location: Braselton ga
Karma: -74
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Senior Member |
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An 1800 RPM system is normally less noisy than a 3600 RPM system. My single cylinder Kohler is substantially quieter than my single cylinder Yamaha. The Kohler has a 4 pole (1800 RPM) alternator, the Yomamaha has a 2 pole (3600) RPM alternator. That Kohler is the only single cylinder 4 pole set I have ever seen.
--johnny
'76 23' transmode norris
'76 palm beach
________________________________
From: Sigmund Frankenfelter <ziggy.frankenf@gmail.com>
To: gmclist@temp.gmcnet.org
Sent: Thursday, June 27, 2013 7:45 AM
Subject: Re: [GMCnet] Dual-Fuel Generator at Costco
I don't think adaptation of these one cylinder generators presents any insurmountable engineering challenges. Especially if the cylinder head is not vertical, it should fit in our drawers. 12v fans of a whole variety of sizes (most designed for radiator cooling) are easy to find online.
The issue is noise. They are loud. When I think of all the one cylinder engines I have ever heard run, whether they be lawn mowers, generators or motorcycles, they have always been loud.
Harbor Freight advertises Chinese one cylinder generators with the ad touting how "Super Quiet" they are. I am guessing, but I think that probably just means that it is slightly quieter than other one cylinder motors.
My Onan isn't the quietest thing, but I wonder if a two cylinder system might be inherently quieter.
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Foolish Carriage, 76 26' Eleganza(?) with beaucoup mods and add - ons.
Braselton, Ga.
I forgive them all, save those who hurt the dogs. They must answer to me in hell
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| Re: [GMCnet] Dual-Fuel Generator at Costco [message #212597 is a reply to message #212549] |
Fri, 28 June 2013 06:12 |
jhbridges
Messages: 8412
Registered: May 2011
Location: Braselton ga
Karma: -74
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Senior Member |
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Probably cost in an air cooled engine. I doubt RV sales re a large part of genset sales in the 4-8KW range, and the other buyers (homeowners and contractors) won't pay an extra $50 or so to make the thing quieter.
--johnny
'76 23' transmode norris
'76 palm beach
________________________________
From: Sigmund Frankenfelter <ziggy.frankenf@gmail.com>
To: gmclist@temp.gmcnet.org
Sent: Thursday, June 27, 2013 5:17 PM
Subject: Re: [GMCnet] Dual-Fuel Generator at Costco
It's just strange to me that a v8 can idle right next to me, and I won't even have to raise my voice, but when an engine with less than one eighth the displacement is running nearby, it feels like someone is jackhammering my head..
It's clear that eliminating this noise would improve the RV experience. I can't believe the major generator manufacturers are unaware of this. I could be wrong, but it feels like it would either be impossible or cost prohibitive to solve this noise issue.
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Foolish Carriage, 76 26' Eleganza(?) with beaucoup mods and add - ons.
Braselton, Ga.
I forgive them all, save those who hurt the dogs. They must answer to me in hell
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