Gas 2010 initial smoke

Lowbuck1010 · Jan 15, 2023

I completed an in frame on a 63 gas 145 and am experiencing oil smoke (blue) on initial startup for 60 to 120 seconds. After that, the smoke clears completely up. Ambient temperature has little to no effect. The compression is good on all cylinders and it has about 6 hours of use on it post rebuild. All specs were within the range given in the service manual, albeit all right on the very outer limits. Rings, valves, guides, seals and seats were all replaced. Cylinders were honed per Hastings recommendation for the ring set. Is this condition normal for doing a rebuild at the outer limits of "acceptable" or is this indicative of something I may have missed or some other problem.
Thanks
Todd

used red MN · Jan 15, 2023

You have 6 hours on the engine under what kind of
load. If it was not loaded to about 75 percent of full
load for about 2 hours of that it is my opinion that your
rings have not seated. If you have not pulled the
tractor fairly hard for a period of time say are least an
hour, before you say you ring job has went bunk you
are going to have to figure out a way to do that. There
is a possibility that the cylinders were worn too much
to hold a good seal on the rings. If it does not drink a
lot of oil you may just have to live with the initial smoke
show on start up.

Lowbuck1010 · Jan 15, 2023

The initial run time was a combination of discing, bush hog and pulling a scraper blade. I can t say with certainty that it was loaded to 75%. I m currently fixing the lights, but when I m done, I ll throw a 3-14 on it for a few hours.

Lowbuck1010 · Jan 15, 2023

And it hasn t burned a drop of oil in that 6 hrs.

M-MAN · Jan 15, 2023

Did you use break in oil?

Lowbuck1010 · Jan 15, 2023

No, either conventional 10-30 or straight 30 weight.

Fixingfarmer · Jan 15, 2023

Consistent blue smoke or smoke in distinct puff? Found piston
rings lined up once on one hole and it made puffs like a bad
diesel injector but darker. Deere is big on using 10w30 break
in oil for the initial oil change. Most other manufacturers dont
really say much on it and I used it once. Its extra expense to
change that oil so quick and the rings wear in eventually. If its
consistent and not in a puff visible at low idle Id run it and see
what happens.

tomstractorsandtoys · Jan 15, 2023

After reading the posts I would go to a good auto parts store and get a bottle of Lucas Break in Additive. It is high in zinc and a few other
things to help your rings seat. Make sure to get break in and not the regular Lucas additive. I have been adding it to every engine we
overhaul. I do have a dyno to use for break in. Tom

Lowbuck1010 · Jan 15, 2023

Tom,
I will try that. The thing that puzzles me the most is how consistently the smoke clears up. After 60-90 seconds, there is zero smoke out of the exhaust. The exhaust pulses out of the muffler are absolutely smooth; no misfire whatsoever.

tomstractorsandtoys · Jan 16, 2023

Put it to work and see what happens. Your idea of a plow sounds great. Make sure your thermostat is good and the engine gets to normal
operating temperature. Tom

teddy52food · Jan 16, 2023

.How loose are the valve guides?

Lowbuck1010 · Jan 16, 2023

I don t know. I don t have the equipment to press in new guides or ream them out, so I took the head to a machine shop.

J.Wondergem · Jan 16, 2023

If it were me, I'd put it to work and not worry about it. If you happen to put chrome rings in it or have chrome cylinders it will take a lot of hours to break in.

Gas 2010 initial smoke

Lowbuck1010

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used red MN

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Lowbuck1010

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Lowbuck1010

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M-MAN

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Lowbuck1010

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Fixingfarmer

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tomstractorsandtoys

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Lowbuck1010

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teddy52food

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Lowbuck1010

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J.Wondergem

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