Is white smoke and little blue smoke normal for first st

Hello I have a Farmall 706 d282. When it's
cold and I always use my glow plugs before
starting. I noticed it will smoke a mix of
white and blue till she warms up and it
don't smoke at all. I also notice a
missing sound or popping but when she is
warm it runs smooth. It only makes that
popping sound couple of times. Thanks

The popping is where it is missing till the temperature rises enough in that cylinder to fire on it's own. The smoke is normal for a cold diesel at first. If it quits in a minute or 2 depending on the temperature outside it is normal. Should be done smoking by the time you would drive out of the shed if you move it as soon as the oil pressure is up. If you warm them up before moving and still smoking it is a problem. Our MD used to smoke upon change over then clean up right away.

Too much gas will cause my farmall C to make white smoke when it starts. Clears up after a few seconds.

My Oliver 1800 always did that too, never became a problem all the years I had it. I always let it warm up a good long time.

Continue holding the glow plugs while starting and a short time after it starts. Not all cylinders are exactly equal. It is low cylinder temp causing both smoke and popping. Unless you have a burned out glow plug .

Also , not a good idea to apply glow plugs after you have released them after it is running due to higher voltage. The glow plugs draw enough current that the voltage does not build to max until you release them. They can draw as much as 70 amps and the original generator is 35amps.

If I need to hit glow plugs again after starting, I throttle down and turn lights on to lower voltage. High voltage kills glow plugs real fast.

Hey cat guy my neighbor has a 40hp new holland tractor even when it is 80 degrees outside he has to glow plug it to get it started what do you think is going on , if you shut it off when hot it will refire but gives a puff of black smoke

(quoted from post at 08:13:33 04/01/22) Hello I have a Farmall 706 d282. When it's
cold and I always use my glow plugs before
starting. I noticed it will smoke a mix of
white and blue till she warms up and it
don't smoke at all. I also notice a
missing sound or popping but when she is
warm it runs smooth. It only makes that
popping sound couple of times. Thanks

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Nine different diesels here and they all do that to some extent depending on how cold it is outside.

Many things you can contribute it to;

-worn rings
-weak or leaking injector
-low compression
-valve guides or seals
-valve adjustment
-timing
-air restriction
-bad glow plug
-head gaskets
-intake gaskets
-turbo seals
-engine not getting warm when used or idling for long periods can load up the muffler with fuel (slobering/wet stack)
-the list goes on ....

As long as it clears up after warming up and then runs good I don't get too worried about it.

White smoke can be coolant, it can also be excess fuel in a cold engine.

Blue smoke can be oil, at times it can also be fuel.

Black smoke can be fuel, it can also be lack of air.

Smoke from water or coolant tends to dissipate rapidly.
Smoke from fuel dissipates a little quicker, smell is usually quite pronounced, if real heavy it will even give you a burn your eyes feeling.
Smoke from oil tends to linger the longest and the smell is distinct if there is enough of it burning off.

In your case with it giving you some popping sounds my first guess would be an injector is leaking down when parked overnight.
By morning there is a small amount of fuel in that cylinder that will smoke off at start up until the pump can build pressure back up in that line, when that happens it once again can produce a good spray from that injector and that cylinder runs normal with no more popping.

Neighbor had a 656 that I think had the same engine. It would smoke, pop rattle and bang for a few minutes after starting. It took glow plugs on the hottest day of the year. It was one tough tractor. It had blowby so bad he tied a gallon oil jug under the breather and would dump it back in the engine the next day. Imagine how dirty that was when plowing, disking or chopping silage. That engine was still running the last I knew but has been retired from heavy work. Tom

I know of a 706D that does the same thing.

I don't know about that New Holland but having to use glow plugs even on warm does is pretty common.

Grizz: If you remember the old Ford pickups with the diesel would need them if they cooled off or were first started in the day cold. Even in summer or mid day the first start would need them Or if it sat long enough to cool of. Though if you have to turn it over several times with or without the glow plugs then I would be wondering about the compression and or the injectors. I would check the glow plugs first though as it is easier than pulling injectors or checking compression.

I always figured a little smoke in the absence of shrieking, squealing and/or a final loud bang is just fine.

Thats the way an indirect injection engine starts . International wont start in 110 degrees wouldnt start without glow plugs my Chevy 6.5 Was the same way

Our older trucks with Catapiller engines would sound like a bunch of marbles bouncing around in the engine when it first started. My old 855 Cummings will blow white smile for awhile till it warms up if it ever does! When it's really cold, it never does get warm idling!

White is water vapor, byproduct of initial combustion, especially on cool, humid days and blue is getting by the rings on initial expansion.....neither a biggie problem, normal operation for higher hour tractor.