Me and a cousin restored a 1949 John Deere A. I was just driving it the other night, while it was dark out, and every time a piston hit fire came out the exhaust stack. I was wondering what a possible cause of this could be... Any help is appreciated.
John Deere A Exhaust Fire
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Your probably running a straight stack. If you had a muffler on there you would not see any flame.
Dragsters do the same thing with unmuffled engines.
I would leave it. Tends to be a crowd pleaser at pulls
Dragsters do the same thing with unmuffled engines.
I would leave it. Tends to be a crowd pleaser at pulls
Yeah I'm runnin a straight stack If it doesn't hurt anything i'll just let it go... I was worried that the fire meant there was something wrong or needed to be adjusted or timed... I don't pull it or anything but a lot of people were watching me drive it that night and they were tellin me i should leave because it looks nice...
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Actually there is a kit that people buy to get flame from their exhaust. So you got it for free!
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Yeah anything with cylinders the size of paint cans and a straight pipe will do that 
As long as it sounds good and the engine don't sound like it's missing or out of time you'll be ok. It's not hurting anything. My "A" has a good bit of flame. I don't pull it often just for fun if I take it to a show,but when I do I like when it's at night. I'll get about a 4 inch flame out of it
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That's normal. On my '48 model A there is no ignition switch so you kill the engine by pulling the throttle all the way back.FarmerBoy said:
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