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09-23-2019, 11:48 AM
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#21
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Bus Nut
Join Date: Nov 2015
Location: AZ
Posts: 486
Year: 2004
Engine: 7.3L Navistar T444e Diesel
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Quote:
Originally Posted by Native
It does feel great to get that elusive part freed up!
Any pictures of the tacking & cutting you'd like to share?
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This is the section that connects to the turbo, with the tacks, and the weld.
It was my first time welding exhaust, but I think it turned out ok. I'm gonna paint it with exhaust paint and then wrap it with heat "tape".
I'll put up a video on my you tube channel eventually. I have about five videos to edit before getting to this subject.
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09-23-2019, 10:28 PM
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#22
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Bus Geek
Join Date: Sep 2015
Posts: 3,860
Year: 2002
Coachwork: Thomas Built Bus
Chassis: Freightliner FS65
Engine: Caterpillar 3126E Diesel
Rated Cap: 71 Passenger- 30,000 lbs.
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Instead of a flex tube, have you considered an elbow and a reducer? Ogburn Truck Parts here in Fort Worth carries all sorts of exhaust parts. Perhaps you have a similar company.
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09-23-2019, 11:06 PM
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#23
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Bus Nut
Join Date: Nov 2015
Location: AZ
Posts: 486
Year: 2004
Engine: 7.3L Navistar T444e Diesel
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Quote:
Originally Posted by Native
Instead of a flex tube, have you considered an elbow and a reducer? Ogburn Truck Parts here in Fort Worth carries all sorts of exhaust parts. Perhaps you have a similar company.
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I already welded up an elbow, and have another one for the muffler. I want the flex pipe to absorb some of the vibrations and movement.
Something like this:
https://www.amazon.com/dp/B01FG9EDPC...ing=UTF8&psc=1
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09-24-2019, 02:36 AM
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#24
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Bus Geek
Join Date: Sep 2015
Posts: 3,860
Year: 2002
Coachwork: Thomas Built Bus
Chassis: Freightliner FS65
Engine: Caterpillar 3126E Diesel
Rated Cap: 71 Passenger- 30,000 lbs.
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Quote:
Originally Posted by Joe45
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Yeah, the exhaust pipes are usually hung from rubber mounts which allow the pipe to move a lot. Your use of the flex pipe would help the flexing. I believe Cadilackkid suggested a rubber mount for the muffler. The two should help one another keep the vibration down.
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09-24-2019, 03:03 AM
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#25
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Mini-Skoolie
Join Date: Jul 2019
Location: MO
Posts: 50
Year: 1991
Coachwork: Blue bird
Chassis: All American RE
Engine: 8.3L Cummins 6CTA
Rated Cap: 84
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I recently removed my DPF and was able to re-utilize the existing pipe to make my own stack. Worked out perfectly as I will be towing my CRV and preferred not to recolor it black. I still have an extra 18" straight pipe if and when I do my roof raise. The original piping did not have rubber mounts, only 2 flex pipes and metal "U" bolts to support. I reused 2 U bolts for support on the stack and have not had any issues with vibrations.
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09-24-2019, 12:28 PM
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#26
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Bus Nut
Join Date: Nov 2015
Location: AZ
Posts: 486
Year: 2004
Engine: 7.3L Navistar T444e Diesel
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The muffler will be solidly mounted to the side of the bus, since it will have the stack rising out of it, with the flex pipe taking the vibrations.
It''s a very short distance from the turbo to the muffler: maybe 30". I am planning on using a long flex pipe to make it extra pliant.
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09-24-2019, 02:45 PM
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#27
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Mini-Skoolie
Join Date: Aug 2019
Location: Houston, TX
Posts: 11
Year: 2001
Engine: Cummins 8.3L ISC w/CAPS
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Joe45,
If you have an air chisel, give the v-clamp a couple taps to free it from the collars. It should pop loose with a "blurp" or two.
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09-24-2019, 03:15 PM
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#28
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Bus Nut
Join Date: Nov 2015
Location: AZ
Posts: 486
Year: 2004
Engine: 7.3L Navistar T444e Diesel
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Quote:
Originally Posted by Audeamus18
Joe45,
If you have an air chisel, give the v-clamp a couple taps to free it from the collars. It should pop loose with a "blurp" or two.
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Came loose with a couple of taps with a ratchet extension.
Thanks!
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09-25-2021, 09:08 AM
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#29
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Bus Nut
Join Date: Jul 2019
Location: Suburbs of Winterset, OH
Posts: 818
Year: 2005
Coachwork: Thomas
Chassis: FS65
Engine: Mercedes 6.4L
Rated Cap: just the 2 of us
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I know this thread is from 2019...I'm looking for pics of where people rerouted the exhaust out the side of the bus. When I measured for my waste water tanks, I didn't pay close enough attention...my gray water tank is supposed to mount over the tail pipe, I missed the 2 exhaust hangers that are in the way. Trying to decide if I should run the exhaust out in front of or just behind the right side duals.
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09-25-2021, 09:25 AM
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#30
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Bus Geek
Join Date: Sep 2014
Location: Eustis FLORIDA
Posts: 23,830
Year: 1999
Coachwork: Thomas
Chassis: Freighliner FS65
Engine: Cat 3126
Rated Cap: 15
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Quote:
Originally Posted by BarnYardCamp
I know this thread is from 2019...I'm looking for pics of where people rerouted the exhaust out the side of the bus. When I measured for my waste water tanks, I didn't pay close enough attention...my gray water tank is supposed to mount over the tail pipe, I missed the 2 exhaust hangers that are in the way. Trying to decide if I should run the exhaust out in front of or just behind the right side duals.
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On my Wanderlodge the generator and engine exhaust come out right in front of the drivers side rear tires.
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09-25-2021, 10:53 AM
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#31
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Bus Nut
Join Date: Jul 2019
Location: Suburbs of Winterset, OH
Posts: 818
Year: 2005
Coachwork: Thomas
Chassis: FS65
Engine: Mercedes 6.4L
Rated Cap: just the 2 of us
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how far beyond the body should I run the pipe? Should I be concerned about heat on the tires?
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09-25-2021, 11:08 AM
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#32
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Bus Geek
Join Date: Sep 2014
Location: Eustis FLORIDA
Posts: 23,830
Year: 1999
Coachwork: Thomas
Chassis: Freighliner FS65
Engine: Cat 3126
Rated Cap: 15
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Quote:
Originally Posted by BarnYardCamp
how far beyond the body should I run the pipe? Should I be concerned about heat on the tires?
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Mine's just turned out and flush with the body more or less.
heat shouldn't be a concern unless you've got the pipe right on the tire.
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09-25-2021, 11:16 AM
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#33
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Bus Geek
Join Date: Apr 2013
Location: Colorado
Posts: 2,631
Year: 1993
Coachwork: bluebird
Engine: 5.9 Cummins, Allison 2000 conversion
Rated Cap: 2
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not sure about your bus but my TC has options.
check out the autojet catalog. i got the factory parts to turn my exhaust out to the side.
https://www.auto-jet.com/school-bus
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09-25-2021, 11:33 AM
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#34
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Bus Geek
Join Date: Dec 2017
Location: Dawsonville, Ga.
Posts: 10,482
Year: 1999
Coachwork: Genesis
Chassis: International
Engine: DT466/3060
Rated Cap: 77
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Just behind the rear axle the exhaust pipe dropped down at a 45* angle and then another 45* angle to direct it out the back below the bumper. After carefully viewing I saw I could cut make one cut between the angle and turn the piece 90* to turn it out the side. Cut 5' of length off and brought it out the side a few feet behind the rear wheel.
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