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Rear exit exhaust Vs. Vertical stack

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ryanwheelock

Member
Wanted to see if you guys can forsee any problems with running the exhaust on a Farmall H so it comes out by the rear drawbar. Tractor does mostly tillage work, nothing around dry hay that could start a fire. I've seen a few Ford Ns and an AC or 2 done like this. Problem is the tractor smokes a bit and gives me headaches from the fumes. I tried running a tall stack but still happens. Wondering if it'll affect the back pressure in a bad way? Not sure if gonna do it or not but the headache/ fume thing has been going on for a few years. My other Farmall H doesnt smoke or give me headaches.
Thanks for the input
Ryan
 
No issue. There is no real back pressure issue to worry about. The pipes will flow well if 1.5" or bigger. Auto exhaust work W/O any problems on larger engines running mor RPM. Jim
 
I don't see that back pressure would be much of an issue as long as you ran the full diameter pipe all the way. I think it is about 2 1/2" exhaust tubing size. It might be a little fun trying to get it bent around under the hood.
 
I was going to run the elbows just above the hood. Might not look as good as if under the hood but I ones I've seen done didnt look that bad. I've got a pipe bender at my work so I can make all my own pipes and keeps the cost down.
 
I'm not sure that is going to solve your fumes problem...I have a diesel w/rear exhaust and it is smellier than the tractors with vertical exhaust....heat rises.
 
I do not think that will help with fume problems either, you will get more of them than with vertical.
 
Not if the breeze is at your back. You'll be moving maybe 4 mph in the field and a 4 mph breeze is almost nothing. My 300U has a underslung exhaust like you're describing and it's not near as pleasant to drive as my Farmall B with vertical exhaust. Also consider that your left foot is going to get warm from the heat rising off the exhaust pipe.
 
If diesel run the exhaust up. If gas either is fine. Just run a diesel in a garage for a few seconds. Nasty
 
I changed my Jubilee to a vertical exhaust and like it much better. The first time I fired it up inside the garage, it cleaned the rafters. Went to NAPA and purchased a 90 exhaust pipe that fits over the end of the vertical. Was going to clamp it in position, but like the idea of backing the tractor into the garage and pointing the 90 so the exhaust is forced out the door. Can run the tractor inside the garage without a problem. Point the 90 to the left most other times. Just have to remember not to shake hands with a hot 90. I don't worry about rain getting into the exhaust, because I never leave my tractors out in the rain. I removed the metal flapper from my IH C so the exhaust could be sent upward and not back at me.
 
I don't think you will be happy with the results of switching yours. I converted the exhaust on my Ford 3000 from horizontal to vertical because of fumes. It was 'ok' for field work, but awful for hooking any equipment on. With it vertical, it is 'ok' for hooking equipment on and better than 'ok' for field work.

How tall did you extend the pipe vertically? I have a Case DC that burns a lot of oil, so I extended the exhaust higher than my head. It's not as good as fixing the rings, but it's a lot cheaper.
 
We had 2 Ford 960's, one came with vertical, one came with out the back.

Dad was as frugal a guy as you've ever seen, he actually threw away the out the back pipes and put on new vertical before they were wore out. We hated that out the back stuff so bad, it added so much heat to the driver area, aweful for hooking anything up, just generally miserable. Only good thing was mowing under trees with it, otherwise it was just a miserable thing.

--->Paul
 
My cousin had rear exhaust on his little Ford. I dreaded riding his tobacco setter worse than just about anything. Both riders would be ill for days after inhaling the exhaust from that little Ford idling along as slow as it would keep running.
 
It might be better to spend time finding out why it's smoking so much and fix that. Why try to get rid of the symptoms if you can cure the disease? You will eventually have other problems caused by what ever is making the tractor smoke so I'd suggest working it from that angle instead.
 
I have spent many hours with each and for me there is no question; the vertical is far better from the fume standpoint. As someone else mentioned, heat rises, so, much more of the fumes rise up and away from me with a vertical exhaust. And, of course, with an underslung exhaust much more of the fumes rise up and gas me because at least half of the time, the breeze seems to help the fumes stay right with me instead of carrying them away.
 
It was stuck when I bought it and I freed it up years ago. It has ran good for 5-6 years just uses a bit of oil and a bit of smoke. Sounds like the rear exhaust might not be as good as I was hoping for now that a few have told be they prefer the vertical.
Thanks again
Ryan
 
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