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Discussion Starter · #1 ·
so progressively the blue smoke got worse and worse and worse. i said ok let me think, its not from burning oil. i looked at the sparkplugs. blacker than black can be. i think my fuel mixture was too rich causing the plugs to foul up and making it smoke. i cleaned the plugs and it barely smokes. and i adjusted the carb a bit.
 

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Red Tractor Nut & Diesel Addict
Joined
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32,409 Posts
Blue smoke is oil, black smoke is fuel too rich. If too rich, will start out black smoke, then after oil is thinned, it will become blue smoke from the too-thin oil going past the rings & valve guides.
 

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Fixer of Broken junk
Joined
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4,794 Posts
I would suspect that your going to need new Piston rings in the future.If the tractor sat for a Long time,one of the oil scraper rings may be stuck fast to the piston.
Did you ever have the heads off of the engine?
Is the cylinder walls scored up?
 
G

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Discussion Starter · #7 ·
the cylinder walls look fine. and what if i used thicker oil? my oil goes black after running it for a few hours, this thing barely ever had its oil changed.
 
G

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Discussion Starter · #8 ·
i suspect sludge buildup is also in the engine. the oil can be barely dirty, you change it and black and thick. nastiest oil ever.
 
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