Reply
 
Thread Tools Search this Thread Display Modes
 
Old 07-01-2008, 01:53 PM   #1
Winnebago Owner
 
Dunnpe's Avatar
 
Join Date: Aug 2007
Location: Antioch CA
Posts: 79
This past weekend I was driving slowly along a dirt road in a campgroud with genset (5.5 Onan) on to use the AC unit. I noticed a cloud of dirt being kicked up from under the left rear of the coach. I stopped and looked and it was coming directly out of the bottom of the genset. After we stopped I looked closer in that area and it seemed to be coming somewhere from in front of the muffler and did not see anything that would accomodate that much air. Does anyone have any idea what it could be. There is exhaust coming out of the tailpipe also. It doesn't sount like an exhaust leak or overly loud, just alot a hot air coming outs from somewhere in that vicinity.
__________________
2003 Itasca Suncruiser 33V
8.1 GMC, Workhorse, Allison, Koni's
2004 Honda Element toad
Dunnpe is offline   Reply With Quote
Old 07-01-2008, 01:53 PM   #2
Winnebago Owner
 
Dunnpe's Avatar
 
Join Date: Aug 2007
Location: Antioch CA
Posts: 79
This past weekend I was driving slowly along a dirt road in a campgroud with genset (5.5 Onan) on to use the AC unit. I noticed a cloud of dirt being kicked up from under the left rear of the coach. I stopped and looked and it was coming directly out of the bottom of the genset. After we stopped I looked closer in that area and it seemed to be coming somewhere from in front of the muffler and did not see anything that would accomodate that much air. Does anyone have any idea what it could be. There is exhaust coming out of the tailpipe also. It doesn't sount like an exhaust leak or overly loud, just alot a hot air coming outs from somewhere in that vicinity.
__________________
2003 Itasca Suncruiser 33V
8.1 GMC, Workhorse, Allison, Koni's
2004 Honda Element toad
Dunnpe is offline   Reply With Quote
Old 07-01-2008, 02:40 PM   #3
Winnie-Wise
 
ChasA's Avatar
 
Join Date: Mar 2007
Location: Apex, NC
Posts: 449
I think it may be just air from the fan on the genset. My 4KW onan is air cooled. I got under it once when it was running and it does push a lot of air out under there.
__________________
2010 Winnebago Journey Express 34Y
2010 Freightliner XCS (mfd 9/'09)
'07 Saturn Vue V6
ChasA is offline   Reply With Quote
Old 07-01-2008, 03:10 PM   #4
Winnie-Wise
 
RCtime's Avatar
 
Join Date: Jul 2006
Location: So. Calif.
Posts: 367
I had the 5.5 onan on my last coach. A really nice genset.
It is air cooled and just doing what comes naturally for it. If you didn't have all the air movement you would fry it real fast.
__________________
2002 Winnebago Journey DL 34 ' Cat. 330 hp
Great wife and Charlie, Cavalier King Charles Spaniel RIP
TTN
RCtime is offline   Reply With Quote
Old 07-01-2008, 04:28 PM   #5
Winnebago Master
 
AFChap's Avatar
 
Join Date: Aug 2002
Location: ...hopefully on the road!
Posts: 1,597
<BLOCKQUOTE class="ip-ubbcode-quote"><div class="ip-ubbcode-quote-title">quote:</div><div class="ip-ubbcode-quote-content">with genset (5.5 Onan) on to use the AC unit </div></BLOCKQUOTE>
If you have basement air, it also will be pushing lots of hot air straight down while running (normally on passenger side rear). The DW always turns our ac unit off when we enter RV parks/etc with dusty dirt roads. That not only saves getting a lot of dust on the toad, it also keeps a lot of dust out of the basement ac box & motors.
__________________
Paul (KE5LXU) ...was fulltimin', now parttimin'
'03 Winnebago UA 40e / '17 Jeep Grand Cherokee toad
AFChap is offline   Reply With Quote
Old 07-02-2008, 03:44 AM   #6
Winnebago Master
 
Join Date: Oct 2000
Location: North East Indiana
Posts: 762
It could be either or both the gen or A/C output of exhaust air (not combustion exhaust). Mine has a lot of air coming out of the A/C right rear area, when it is operating.
Izzyblueye is offline   Reply With Quote
Old 07-02-2008, 04:01 AM   #7
Winnebago Owner
 
Join Date: Oct 2006
Posts: 128
The air discharge is probably a design feature in an air cooled genset. The cooling fan forces air, via cowling and/or ducts, over the generator and engine to keep it from overheating. Old Volkswagens and some airplane engines used the same system.
__________________
06 Itasca Meridian 36G, 350 Cat , Flnr XC-S Chassis

07 Jeep Wrangler Unlimited
Chief is offline   Reply With Quote
Old 07-02-2008, 05:08 AM   #8
Winnebago Master
 
Join Date: Nov 2005
Posts: 1,079
The generator will put out quite a volume of air to keep it cool. If you have a dual tube muffler the spark arrestor unit on the top section of the muffler has a plug that might be missing. Page 21 of the owners manual describes the location and procedure for inspection.

Here's a link to the index page for generator owners manuals on the Cummins Onan site: http://www.cumminsonan.com/rv/support/manuals
__________________
Hikerdogs
2013 Adventurer 32H
Hikerdogs is offline   Reply With Quote
Old 07-02-2008, 05:33 AM   #9
Winnie-Wise
 
Pubtym's Avatar
 
Join Date: May 2006
Posts: 359
Missing item here...to be added...is the fact that road dust primarily from rear wheels is recirculating back up into air filter of GEN Set...rapidly fouling it up. I learned that after inspecting my Gen Set air filter after running Gen Set as I drove along somewhat dusty road. It was really dirty with same dust.

If I see dusty road conditions with Gen Set operating, now I'll shut down Gen Set and A/C until back on non dusty surface.

Added: I always carry a new/spare Gen Set air filter...just in case..replaceing them early makes all gen Set factors happy...and that in turn tickles the electrical items supported by Gen Set.
__________________
Pubtym, 20th SOS "Green Hornet" , Viet Nam 68-69,
2015 Thor A.C.E 29.3
Pubtym is offline   Reply With Quote
Old 07-02-2008, 03:18 PM   #10
Winnebago Owner
 
Dunnpe's Avatar
 
Join Date: Aug 2007
Location: Antioch CA
Posts: 79
Thanks to all who have responded. I am sure glad it is normal. I did and will from now on turn the genset and AC unit off during runs on dirt roads to eliminate and excess dirt flying and causing premature problems. This is a superb forum.
__________________
2003 Itasca Suncruiser 33V
8.1 GMC, Workhorse, Allison, Koni's
2004 Honda Element toad
Dunnpe is offline   Reply With Quote
Reply


Currently Active Users Viewing This Thread: 1 (0 members and 1 guests)
 
Thread Tools Search this Thread
Search this Thread:

Advanced Search
Display Modes

Posting Rules
You may not post new threads
You may not post replies
You may not post attachments
You may not edit your posts

BB code is On
Smilies are On
[IMG] code is On
HTML code is Off
Trackbacks are Off
Pingbacks are Off
Refbacks are Off


Similar Threads
Thread Thread Starter Forum Replies Last Post
Slide Out Seal Coming Out tkamsal General Maintenance and Repair 13 03-26-2014 07:57 AM
Push out coming out from bottom wildmandmc General Maintenance and Repair 8 01-14-2014 09:44 PM
Excessive engine fan noise MegaRoadie General Maintenance and Repair 10 06-17-2011 12:32 PM
Slide out's coming out while driving? Rocket Heart General Maintenance and Repair 8 05-13-2008 03:44 PM

» Featured Campgrounds

Reviews provided by

Disclaimer:

This website is not affiliated with or endorsed by Winnebago Industries or any of its affiliates. This is an independent, unofficial site.


All times are GMT -6. The time now is 02:30 PM.


Powered by vBulletin® Version 3.8.8 Beta 1
Copyright ©2000 - 2020, vBulletin Solutions, Inc.
×