Re: smoke from engine

Posted by Texasmark on January 01, 2022 at 11:23:00 from (99.197.208.100):

In Reply to: Re: smoke from engine posted by M-MAN on January 01, 2022 at 07:52:21:

I agree. Does your oil turn black early on after an oil change? Next time you do an oil change, run your finger in the drain hole in the oil pan and see if the bottom of the pan is full of sludge. If so getting rid of it may solve the problem.

I had a '63 2000D with 3900 original hours (proofmeter little tell tale rolling proving that it's working) when I traded it in this past January. There haven't been any wrenches on the engine proper, not even a valve cover removal to have the valves tweaked, that had varying amounts of smoke over the years in the exhaust even with a new oil change. I did add Sea Foam to the crankcase on a couple of occasions, like a pint to 6 gallons of oil, right before an oil change, running for half an hour or so, engine up to temp.

A big surprise came not long ago when I had a couple of hours job to do that put a (tolerable) strain on the tractor.....I worked it. The next time I went to use it it didn't smoke. Best guess was that rings may have been carboned up and the detergent in the oil plus stress of hard working caused the carbon to loosen, allowing the rings to expand back to normal and seal off the combustion chamber.

But I had that tractor since the early 80s at least, may have been sooner, and it smoked all that time enough to tell it was doing it, and the smoke was more blue than black so I wasn't having fuel injector problems. I knew I had good compression and injection because I never used a starting aid here in N. Tx. in the winter and the engine, after sitting for a couple of weeks or so usually, or more, would light off within 30 seconds raring to go. No way could I get enough heat in the cylinder to light off Diesel mist if I had low compression due to bad seating valves or worn rings.

So sir, let her rip is my advice unless you just need a place to spend money and/or need something to do.

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