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Speakingof air stacks

Dan in Ohio

Dan in Ohio

Well-known Member
Location
Mid-Ohio
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


mvphoto99659.jpg


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


mvphoto99660.jpg




mvphoto99661.jpg




mvphoto99662.jpg




mvphoto99663.jpg



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


mvphoto99664.jpg
 
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..
 

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.
 
''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.
 
(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.
Click to expand...

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.
 
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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