Thread Tools Display Modes
Old 11-11-2014, 09:06 PM   #1
Bus Nut
Join Date: Jul 2011
Location: Virginia
Posts: 446
Generator Exhaust Routing?

Question: Can the generator exhaust be connected to the main engine exhaust and work without causing any issues? More specifically, if the generator is run while the bus engine is running will the larger bus exhaust flow cause any issue with the generator or it's exhaust flow? Seems like it would be much easier and safer to connect the generator exhaust to the bus exhaust to use the same common exhaust outlet.
dgorila1 is offline   Reply With Quote
Old 11-11-2014, 11:13 PM   #2
Bus Crazy
ol trunt's Avatar
Join Date: Apr 2012
Location: So Cal
Posts: 1,695
Year: 1935
Coachwork: Superior
Chassis: Chevy
Engine: 317 ci/tid / Isuzu
Re: Generator Exhaust Routing?

You probably will have back pressure problems with the bus and genny running and without a doubt you will be feeding bus exhaust back through the genny if the bus is running and genny is off. I had the same idea and went with two exhaust systems. There are a couple of other considerations such as sizing the genny exhaust pipe to maintain just enough flow resistance to keep the genny exhaust pulses tightly packed and therefore quieter. Funny how nothing is ever simple!?!
ol trunt is offline   Reply With Quote
Old 11-12-2014, 11:05 AM   #3
Bus Nut
Join Date: Jul 2011
Location: Virginia
Posts: 446
Re: Generator Exhaust Routing?

That's what I was wondering about...pressures, venturi effect from the larger bus exhaust flow, etc. Good info, thanks.
dgorila1 is offline   Reply With Quote
Old 11-12-2014, 05:57 PM   #4
Bus Crazy
Stu & Filo. T's Avatar
Join Date: Sep 2013
Location: Vacaville, Ca
Posts: 1,084
Year: 1988
Coachwork: Crown / Pusher
Engine: 8.3 Cummins
Re: Generator Exhaust Routing?

If you were to angle the genny exhaust at a 45 deg angle facing towards the exit wouldn't the pulses from the Bus exhaust help pull the genny exhaust? I can see if you tied in at a 90 deg you might pressurise the genny but the 90 deg should be ok
Stu & Filo. T is offline   Reply With Quote
Old 11-14-2014, 11:45 PM   #5
Bus Nut
gmarvel's Avatar
Join Date: Jul 2013
Location: Danville, California
Posts: 343
Year: 1988
Coachwork: Crown
Chassis: Supercoach
Engine: DD6-71T
Rated Cap: 78
Re: Generator Exhaust Routing?

I am not an engineer. However, I have never seen a Class A motor home with generator exhaust hooked up to the main engine exhaust. There has to be a very good reason. Too many unintended consequences could come from this.
Greg and Donna Marvel

Danville, California
gmarvel is offline   Reply With Quote

Thread Tools
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
Propane routing question Diesel Dan Conversion General Discussions 6 08-17-2012 10:02 AM
DT466 4x4 Exhaust routing martian International | Navistar Drivetrain 1 04-22-2011 10:51 PM
Exhaust and oil pan problems Seeria Mechanical and Drivetrains 3 08-10-2010 11:23 AM
Routing Exhaust... bus-ted Short-Bus Conversion Projects 3 06-27-2010 01:13 PM
Flexible exhaust hose for generator Ob1 Mechanical and Drivetrains 7 11-17-2009 12:03 AM

» Virginia Campgrounds

Reviews provided by

Powered by vBadvanced CMPS v3.2.3

All times are GMT -5. The time now is 12:00 AM.

Powered by vBulletin® Version 3.8.8 Beta 4
Copyright ©2000 - 2016, vBulletin Solutions, Inc.