AC 190 Gas Smoking blue fixed

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   Hey all though I would give everyone an update on my 190 gas that was smoking blue. I did what all the 

helpfull people on here said. I First changed oil to w30 did not help much. Then I just ran the tractor smoking 

started getting worse and worse. After a while it was smoking a ton so I pulled it into the shop and started to pull 

down the engine to look at what needed replacment. After I pulled the valve cover I found the intake pushrod on 

cyl 3 was out of the rocker arm. Popped it back in and set the gap and put back together and started it up 

smoked a ton on startup and then burned clean. what I am gessing what happened was when the piston tried to 

pull air fuel mix in like it normally would it could not and therefore made a lot of suction on the rings and valves in 

cyl 3 and then pulled in oil. Then when the exaust valve opened it would push the oil into the exaust then when it 

warmed up and the pipe got hot it would burn the oil in the muffler and make the blue smoke. this tractor sat 

nonrunning for 5 years. previous owner said it just didnt have power. must have just been always been running on 

5 out of 6 cyl. sorta interesting never heard of anyone else having a problem like this

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Allis Eli Members Profile Send Private Message Find Members Posts Add to Buddy List Bronze Level Joined: 17 Apr 2024 Location: MN Points: 38	Post Options Post Reply Quote Allis Eli Report Post Thanks(0) Quote Reply Topic: AC 190 Gas Smoking blue fixed Posted: 27 Oct 2024 at 8:41pm
	Hey all though I would give everyone an update on my 190 gas that was smoking blue. I did what all the helpfull people on here said. I First changed oil to w30 did not help much. Then I just ran the tractor smoking started getting worse and worse. After a while it was smoking a ton so I pulled it into the shop and started to pull down the engine to look at what needed replacment. After I pulled the valve cover I found the intake pushrod on cyl 3 was out of the rocker arm. Popped it back in and set the gap and put back together and started it up smoked a ton on startup and then burned clean. what I am gessing what happened was when the piston tried to pull air fuel mix in like it normally would it could not and therefore made a lot of suction on the rings and valves in cyl 3 and then pulled in oil. Then when the exaust valve opened it would push the oil into the exaust then when it warmed up and the pipe got hot it would burn the oil in the muffler and make the blue smoke. this tractor sat nonrunning for 5 years. previous owner said it just didnt have power. must have just been always been running on 5 out of 6 cyl. sorta interesting never heard of anyone else having a problem like this

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DrAllis Members Profile Send Private Message Find Members Posts Add to Buddy List Orange Level Access Joined: 12 Sep 2009 Points: 20523	Post Options Post Reply Quote DrAllis Report Post Thanks(0) Quote Reply Posted: 27 Oct 2024 at 9:51pm
	All those who read and posted suggestions as to what to do, all naturally assumed that the engine was hitting on all six cylinders. The only one who could possibly know it wasn't was you.

Allis Eli Members Profile Send Private Message Find Members Posts Add to Buddy List Bronze Level Joined: 17 Apr 2024 Location: MN Points: 38	Post Options Post Reply Quote Allis Eli Report Post Thanks(0) Quote Reply Posted: 27 Oct 2024 at 10:00pm
	yes I agree. Not trying to say everyone should of thought of it or something. I am the one who should have known that it was only running on 5. everyone was extremly knowledgeable and helpfull for trying to find the problem. thanks

injpumpEd Members Profile Send Private Message Find Members Posts Add to Buddy List Orange Level Access Joined: 13 Sep 2009 Location: Walnut IL Points: 4916	Post Options Post Reply Quote injpumpEd Report Post Thanks(0) Quote Reply Posted: 28 Oct 2024 at 9:59am
	I've had some very "seasoned" mechanics have this issue bite them. Had a IH mechanic have us rebuild the pump and injectors off a 1066 for putting fuel in the oil. He got it back on and still complained of the issue. We told him to check the valvetrain, but he insisted it had to be our pump and/or injectors at fault. "It runs perfect, and doesn't miss!" he kept stating. Well, after wasting a lot of our time to once again prove the pump wasn't leaking, and checked injectors numerous times, he finally pulled valve cover and found a broken rocker arm. This guy knows these engines very well, but could not pick up on a miss! lol! A couple of things I always try to suggest is compression test, and temp gun on exh manifold. Is it smoking in puffs, or steady? Glad this one was easy!
	210 "too hot to farm" puller, part of the "insane pumpkin posse". Owner of Guenther Heritage Diesel, specializing in fuel injection systems on heritage era tractors. stock rebuilds to all out pullers!

Les Kerf Members Profile Send Private Message Find Members Posts Add to Buddy List Orange Level Joined: 08 May 2020 Location: Idaho Points: 783	Post Options Post Reply Quote Les Kerf Report Post Thanks(0) Quote Reply Posted: 28 Oct 2024 at 10:48am
	Not everyone has a good 'ear' for picking up on these things; I know that I do not. My wife can sing harmony by just picking it out of the air, I just sing off key (but I sing loud to make up for it). For those who can hear a slight 'miss' in an engine, count your blessings, we less talented folks need to rely on tools to help us with our disabilities. My infra-red non-contact thermometer gets a lot of use, what a wonderful tool!