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alan0043

Weed burner for 2012 Volvo

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Hi Everyone,

 

I am in the planning stage for a weed burner on a 2012 Volvo with a D13 engine. I thought I remember someone talking about the number of elbows and pipe size. If you do a weed burner that you need to keep the same number of elbows and the pipe size the same. This is because you do not want to change the back pressure of the system. Did I remember this correctly ? Is it best to have the exhaust system on the passage side of the truck ? Is there anything that I am missing ? I plan to use the stock parts from the truck.

 

Thank you for any help,

Al

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I believe you are remembering correctly. As to passenger vs driver side, I believe the passenger side is where it's usually placed (although I'm not sure why).

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The exhaust comes out of the engine on the passenger side so the exhaust generally stays on that side. Far as changing the back pressure, that is not much of an issue with a turbo charged engine. The only time it is a problem is when the exhaust is too restrictive. You could run a straight pipe off the turbo and the engine will run just fine. You may even drop the EGT just a bit too.

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Alan,

 

If I recall correctly, you can also drop between the frame rails pointed down in the middle rear of the truck. Doesn't come out either passenger or drivers side. Motorcycle drivers next to you would appreciate not having their ankles cooked.

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We are in the process of converting our exhaust while building the bed.

 

It looks like it is going to be fairly straightforward, with the hardest part being to cut the outlet of the DPF and rotate it to face more toward the back of the truck. Other than that, we should be able to use the elbows and straight sections to build the new exhaust.

Edited by VegasFlyer

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The exhaust comes out of the engine on the passenger side so the exhaust generally stays on that side. Far as changing the back pressure, that is not much of an issue with a turbo charged engine. The only time it is a problem is when the exhaust is too restrictive. You could run a straight pipe off the turbo and the engine will run just fine. You may even drop the EGT just a bit too.

Our weed burner exhausts on the passenger side as most seem to be configured. If I were to start from new I might consider exhaust on the driver side or maybe revert to a short vertical stack.

 

Often in town we drive in the right lane and folks on the sidewalk do not like having the Trolley exhaust blowing on their feet and legs. Bike riders sometimes wave with one finger...so friendly...

 

One time we were shoehorned into the right lane at the CA AG-inspection just West of Parker AZ (four corners) and things got ugly in a hurry....it was mabe 95f and the inspectors office airconditioner intake was at waist level right in line with the trolleys weed burner and it took less than a minute to "smoke-out" ALL of the inspectors.....in a flash a lady with a gun on her hip was speaking "forcefully" up to me and waving me out of the inspection lane and over to the side of the back lot. She stomped off and went to sit in her CHP car.....

 

So....the inspectors still had Dolly-the-paint-horse-transit papers so....I set the park brake and walked over to the herd of inspectors and ask if I could have the horse papers back.....hummm they all turned around a glared at me and boy oh boy did the temp drop.... One inspector said "sir please go wait in your truck and after the air in the office clears some in a few minutes I will bring your papers out to your truck"...... Gulp...

 

Drive on.....(weed burners ....be careful who you burn)

Edited by Dollytrolley

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Exit under the truck with turn down would be my first coice, but it can raise a lot of dust on gravel road in camp grounds.

 

As a motorcyclist, I appreciate the concern shown here for others. I just wish the yahoo's in pick-ups would be so polite.

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He wont have a smoke issue with a 2012. Dolley has a polluteasauras from the ancient times :lol:

With under 30k on a New M11 the Trolley never smokes...run the exhaust analysis and it come up VERY clean burning....you want to see SMOKE watch a 2012 at regen-cycle....

 

Drive on ....(don't regen-cycle next to the air conditioner intake)

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Hi Everyone,

 

From what I have been reading there is not to much concerns about the number of elbows or the size of the pipe. As long as the size of the pipe is not smaller than the stock size. Is there a special clamps or just use the stock one ? My plan is to stay stock as possible. My plan is to add a tool box right behind the cab. That is the reason for the weed burner. Or maybe I can find a tool box that can fit behind the cab with out having to do anything with the exhaust. Is there any good ideas for tool boxes with out breaking the bank ?

 

Thanks for any ideas,

Al

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There may be a sensor in the pipe that you have to make sure you move, as well.

 

On our 2008, the last sensor is a temp probe just downstream of the DPF. It is a minor adjustment.

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Never had a problem with the location of my exhaust (out the pass side thru the fairing). Fan makes more dust when it comes on than the exhaust, so I put a switch in to disable it.

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Not that this group is going to run into the problem, but in the industry weed burners are a dispised option. Mostly coming from the fact that we live/sleep in our trucks, and you have some yahoo who insists on parking next to you on a near perfect 70 degree day who idles his truck all night. Even in the winter, when my windows are closed, my ventilation system still picks up the smell even if I have it on recirculate. Although the carbon monoxide situaltion is different than a gas powered vehicle, I cannot consider it healthy to dump the exhaust below the cab and have someone occupy that cab when the vehicle is standing still.

I understand the need, car haulers and others where a high mounted exhaust would damage the cargo/ or trailer. I just don't like it.

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Yea you don't want to move the NOx out sensor on DEF trucks. You'll end up with the MIL light from hell. You pretty much have to stick to tailpipe change only. If the RV theory is right about super light easy hauling then you'll be doing plenty of regens so design for a hot pipe - sst band clamps, bellows not flex, try to use your v-band ends as much as you can, etc. Desorb programming didn't generally start until 2013~ish so your '12 probably puts out the smoke when starting a regen so yea plan your exit location for that too. If it doesn't exit at 13ft high be sure to use a diffuser too.

 

Size of pipe is of concern but it kind of goes without saying on an aftertreatment truck. The whole thing is based on backpressures so don't mess it up...... ;) Safest thing is probably to find out what Volvo does for a 230" WB horizontal truck and built that?

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Reading this makes me glad I don't have to worry about a Regen process with my truck. My weed burner has an elbow pointing down and to the drivers side from the passenger side. It doesn't stir up much dust because I am usually just idling through the campgrounds. The exhaust of the air compressor at it's shut off causes more dust. There is a black mark on the driveshaft so I'm glad it's under the truck and not on the front of my trailer.

 

Rod

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