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Rough Idle/Backfire

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jrmartin1964
10+ Years
10+ Years
Posts: 23
Joined: Fri Jul 05, 2013 12:13 pm
Zip Code: 38862
Tractors Owned: :
1945 Farmall A
1947 Farmall A
1949 Farmall Cub
1950 John Deere M
Location: Plantersville, MS

Re: Rough Idle/Backfire

Postby jrmartin1964 » Sun Jul 07, 2013 12:32 pm

Glad to see you got your Cub back up to power. The only thing I have to add regards the smoke you are seeing. From what I could see in your video, the smoke only seems to occur on cranking and when the engine first takes up a load (climbing a hill, engaging the mower, etc.), and then clears up. From what I understand, that's perfectly normal - except that it is generally a bit darker, more towards black (ill have to say the white smoke had me concerned at first, but it seemed to clear up in no time) - and all internal combustion engines do this. Maybe the white color has something to do with the additive you're using?

Anyway, it's great that you are up and running. :{_}:

Jim
1945 Farmall A
1947 Farmall A
1949 Farmall Cub
1950 John Deere M

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AgTires4295
10+ Years
10+ Years
Posts: 197
Joined: Fri Dec 30, 2011 7:36 pm
Zip Code: 20646
Tractors Owned: 1940 Farmall A
1947 Farmall H
1951 Farmall Cub
1970 Cub Cadet 127
1970 Simplicity Broadmoor 728 (x2)
1984 Cub Cadet 782
1964 Simplicity Landlord
2014 Simplicity Broadmoor 23/50
Location: La Plata, MD

Re: Rough Idle/Backfire

Postby AgTires4295 » Sun Jul 07, 2013 11:16 pm

Thanks Jim 8) The smoking I've seen since it has been back up and running properly is variable. Sometimes it smokes a little and seemingly under the exact same conditions, smokes A LOT. I've run the fuel down, and cleaned out the bowl since the additive. Guessing it's just burning oil (it has a slight blue haze to it) and showing when I cant control one variable: heat. Either way, I couldnt be happier! Just hoping to find my grinding gremlin now :lol:
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1940 Farmall A
1947 Farmall H
1951 Farmall Cub

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Rudi
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Tractors Owned: 1947 Cub "Granny"
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1968 Cub Lo-Boy
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IH 129 CC
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Re: Rough Idle/Backfire

Postby Rudi » Mon Jul 08, 2013 8:26 am

If you added some SeaFoam to the gas and to the crankcase, this is normal and nothing to worry about as the SeaFoam is doing it's thing. Wait for a bit and see what happens, the smoke may simply be carbon burning off.
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