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super h /new rings question

R

rick deere

Well-known Member
Is it normal for the tractor to smoke after putting new rings in. No water getting into oil. But have light blue smoke, smells oily.not antifreeze.tractor runs ok but I dont know why it would smoke any. thanks Rick
 
Did you hone the cylinders thoroughly? Did you offset the ring gaps? If you did all this it may just be break in until the rings seat. I have had that happen a couple of times.
 
Provided you did the sleeves as suggested below, they haven't seated yet. I have only replaced sleeves, pistons and rings in 3 engines, so I'm no expert, but none smoked -- at all. Probably because the sleeves and pistons were a matched set. I have not as yet installed rings on old pistons and sleeves.
 
Light blue smoke is definitely oil.

I wouldn't call it normal, but rings can take a while to wear in to match the cylinders.

I assume the cylinders where honed to a cross hatch pattern.

But if that pattern isn't 45 degrees, either too flat horizontally, or too steep vertically, I know the scratches can either catch or pass excessive oil. Whether that's enough oil to show up as smoke, I just don't know, but it's conceivable.

If that's the case, I wouldn't worry too much about it, things should start fitting themselves together soon.
 
you have to get the engine under a load and to operating temperature to get the rings to seat. just idling around will do nothing and may even glaze the cyl. walls, then thats another story. take it you have deglazed the cyl's before installing pistons.
 
I just re-read your post - I had thought you put in new sleeves, but now I see you didn't. If any the original cylinders are out of round, of if there is any vertical scoring, new rings won't help too much.

Did you check everything over carefull first?
 
Yes had a pro hone very good,Im gonna try pulling something for about an hour and cover radiator and see if that helps.thanks
 
If you did everything right with the honing, check for out of round, etc. I would agree with Rustred and JRSutton. light to moderate work for an hour, but don't overdo it ( or under do it). I have rebuilt many engines over the years, and I never got too worked up if they smoked a bit of "blue" smoke the first couple of runs. Rings need to "seat".

If you put an hour or two of moderate work on her, and she still smokes, then something is definately wrong.
 
Some of these old engines pour a lot of oil on the rocker arms and down onto valves so if you have no valve seals you can pull a lot of oil through under high vacuum no load conditions. Have seen those rocker arms and shaft worn so bad the oil just poured onto valves.
 
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