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Smoking-need help

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AGR538

03-13-2003 15:13:38




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Ok, here is the story. 1940 H, smoked very little when bought about a year ago. I did not run it much but I did use it for some light work. Still very little to no smoke. It sit for a couple of months and when I started it again it would not run right, spit, sputtered, would quit if I tried to move it, would not race up to high RPMs, it would just smother out. Still no smoke. I figured there was trash in my carb and it appeared the float was sticking. Put a new sediment bowl on and an inline filter. Did not help. Left the gas turned on by mistake one day and when I started it up again to work on it some more it smoked like a train. Blue, black and gray when one cylinder hit. I mean it looked like a cold diesel with a heavy load at full throttle. Cut the engine after a minute or two. Let it sit for another month or so and drained the oil last night. Smelled like gas and oil was weak. Started it with new oil and again..smoking like crazy. I fear the rings are shot but I have never seen it happen that quick before. Any thoughts or personal experiences appreciated.

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Rick P

03-14-2003 02:42:33




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 Re: Smoking-need help in reply to AGR538, 03-13-2003 15:13:38  
An oldtimer friend of mine told me auto trans fluid in cyl. loosens rings. He also said with todays gas to use D21 champion or equal type. Rick P



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Ray in Pa.

03-13-2003 20:49:16




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 Re: Smoking-need help in reply to AGR538, 03-13-2003 15:13:38  
It's very possible you have stuck rings in at least one cylinder. This had happened to my tractor apparently due to the previous owner running the carburetor mixture far to rich and then letting the tractor sit for sometime. My tractor for several years was burning alot of oil of which resulted in alot of blue smoke. It also fouled the plugs often in two cylinders and had a ping when hot even though the timing was set correctly. I originally thought it needed a ring job and then one day I wanted to try a cylinder, head cleaner to see if it might help. I added some Chem. carb. cleaner/carbon remover into about 5 gallon of gasoline in the gas tank, and then ran it. Now my tractor doesn't have blue smoke, rarely ever fouls a plug, and gained alittle power. In my situation, I am still amazed in how much of a difference the cleaner made.

Thanks, Ray in Pa.

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Chuck

03-13-2003 18:58:06




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 Re: Smoking-need help in reply to AGR538, 03-13-2003 15:13:38  
Take the air cleaner to carb pipe off at the carb and let the gas run out.Then start the tractor with the pipe disconnected and let it run until all the smoke clears up.



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CNKS

03-13-2003 18:15:59




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 Re: Smoking-need help in reply to AGR538, 03-13-2003 15:13:38  
Check your air cleaner, start with the oil cup. It is possible, perhaps not likely, that gas has backed up into the unit, into the cup, messing up your air flow. I have never seen this happen, but have read about it on this forum. Caused by a stuck float if you left the gas on too long. Kind of a long shot. I can't see the rings sticking in a year's time, but -- who knows?



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Tractor Dan

03-13-2003 17:52:30




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 Re: Smoking-need help in reply to AGR538, 03-13-2003 15:13:38  
i would do like the other guys said but also put the lead additve to the gas as well good luck



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Alton

03-13-2003 15:28:23




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 Re: Smoking-need help in reply to AGR538, 03-13-2003 15:13:38  
I would take a compression check first. First dry and then add a spoon of oil into the spark plug holes. If the compression rises the rings are probally bad. If it does not rise after you added the oil it is probally valve related. Check the readings with factory specs. This will tell you if the engine is basically sound. If it is I would then look at some fuel issues such and needle not seating, float not working correctly. You can check the fuel flow by taking drain from bottom of carb.

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dhermesc

03-13-2003 15:46:44




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 Re: Re: Smoking-need help in reply to Alton, 03-13-2003 15:28:23  
You might pull the plugs and squirt you favorite solvent into the pistons and let them soak. It sounds like your rings may have seized. I like to use Chem 12 and I have also heard good things about Marvel (?) Oil. Make sure you turn the engine over a few times before putting the plugs back in, it blows the remaining solvent out (kind of a mess). Otherwise you could hydrolock your engine.

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Alton

03-13-2003 15:28:09




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 Re: Smoking-need help in reply to AGR538, 03-13-2003 15:13:38  
I would take a compression check first. First dry and then add a spoon of oil into the spark plug holes. If the compression rises the rings are probally bad. If it does not rise after you added the oil it is probally valve related. Check the readings with factory specs. This will tell you if the engine is basically sound. If it is I would then look at some fuel issues such and needle not seating, float not working correctly. You can check the fuel flow by taking drain from bottom of carb.

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