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Speakingof air stacks


 
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Dan in Ohio
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PostPosted: Thu Nov 24, 2022 3:01 am    Post subject: Speakingof air stacks Reply to specific post Reply with quote

I have been told several times that the air stack on my 80 is on backwards. I just shrug and say "I didn't do that" and let it go but after looking at other 80's I realized they are all like mine. All my other letter series tractors air stacks face the opposite direction.

What is up with that, why is it different on the 80?

My 80




The following 80's are NOT mine. Don't tell me they have all been restored incorrectly.

















This post was edited by Dan in Ohio on 11/24/2022 at 03:05 am.

 
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matthies
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PostPosted: Thu Nov 24, 2022 5:35 am    Post subject: Re: Speakingof air stacks Reply to specific post Reply with quote

To keep exhaust gases out of the engine.
 
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Mike(NEOhio)
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PostPosted: Thu Nov 24, 2022 5:56 am    Post subject: Re: Speakingof air stacks Reply to specific post Reply with quote

Ram induction???
 
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Dan in Ohio
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PostPosted: Thu Nov 24, 2022 6:00 am    Post subject: Re: Speakingof air stacks Reply to specific post Reply with quote

I guess it makes sense to have the air stack face away from the exhaust but not really when we think about how the numbered series draw air.



 
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Mark Poss
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PostPosted: Thu Nov 24, 2022 6:07 am    Post subject: Re: Speakingof air stacks Reply to specific post Reply with quote

Dont know which way its supposed to face but thats a great looking tractor!!
 
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Dan in Ohio
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PostPosted: Thu Nov 24, 2022 6:31 am    Post subject: Re: Speakingof air stacks Reply to specific post Reply with quote

Thanks, just wish it wasn't such a beast to haul. Usually the only one at the local tractor shows.
 
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Mark Poss
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PostPosted: Thu Nov 24, 2022 6:34 am    Post subject: Re: Speakingof air stacks Reply to specific post Reply with quote

Great looking 70 also. My 70 Diesel doesnt have an air stack. Is yours factory?
 
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JIM MN
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PostPosted: Thu Nov 24, 2022 7:01 am    Post subject: Re: Speakingof air stacks Reply to specific post Reply with quote

Seems all the other two-cylinder tractors that have this style of air stack have the open side facing away from their exhaust stacks .. They came from the factory that way..
 
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Masseyharrisnut
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PostPosted: Thu Nov 24, 2022 8:05 am    Post subject: Re: Speakingof air stacks Reply to specific post Reply with quote

Nice 80 that you have.
 
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Dan in Ohio
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PostPosted: Thu Nov 24, 2022 9:24 am    Post subject: Re: Speakingof air stacks Reply to specific post Reply with quote


No, the 70D air stack is not factory although it has been changed to look factory as it originally (PO installed) was mounted straight up on the air cleaner like the 20 series tractors. Using original parts I changed it to come up through the grill as the 70 was originally.
 
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Pete in MD
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PostPosted: Thu Nov 24, 2022 6:57 pm    Post subject: Re: Speakingof air stacks Reply to specific post Reply with quote

''Seems all the other two-cylinder tractors that have this style of air stack have the open side facing away from their exhaust stacks .. They came from the factory that way.''

The opening on the airstack faces rearward toward the muffler on A and B tractors.
 
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Rich'sToys
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PostPosted: Thu Nov 24, 2022 9:30 pm    Post subject: Re: Speakingof air stacks Reply to specific post Reply with quote

CVPost-Pete in MD wrote:
(quoted from post at 21:57:49 11/24/22) ''Seems all the other two-cylinder tractors that have this style of air stack have the open side facing away from their exhaust stacks .. They came from the factory that way.''

The opening on the airstack faces rearward toward the muffler on A and B tractors.


The opening on the stack DOES face the rear on A's and B's, but that IS also away from the muffler, as the muffler is in front on those tractors.
 
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JIM MN
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PostPosted: Thu Nov 24, 2022 9:49 pm    Post subject: Re: Speakingof air stacks Reply to specific post Reply with quote

I disagree.. On a styled A or B , the exhaust is in front of the air stack . The openings on the air stack face away from the muffler..
 
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Pete in MD
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PostPosted: Fri Nov 25, 2022 5:59 am    Post subject: Re: Speakingof air stacks Reply to specific post Reply with quote

Now that my brain fog has cleared, I agree with you. Mia culpa.
 
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jd2cyl1943
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PostPosted: Fri Nov 25, 2022 10:11 am    Post subject: Re: Speakingof air stacks Reply to specific post Reply with quote

It had to do with the air cleaner being to bulky to fit to the rear because of the starting motor. so they just pushed it in front instead.
 
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