Smoking

[Johnm27]

Hello there folks dexta has been running great still is but started smoking tank is spotless fuel going into pump clean fuel coming out at injector dirty colour. I have changed hand primer pump heater primer stopcock underneath tank tractor is running fine no issues apart from the smoke is greyish/whitesh no leaks no water in oil and no oil in water all levels ok oil droplets coming out exhaust manifold engine oil level is spot on as a thought I put new oil in tractor pulls great been ploughing with it never mist a beat iam at a loss if anyone has any suggestions iam all ears the only thing I have changed since getting the tractor is. Red to white I know that can’t do anything !!! sorry for the long explanation. Thanks john m

[Billy26F5]

How hard have you been ploughing? It sounds like you're suffering from lack of work, although dirty fuel in the injection side is of concern, its effect would be missing cylinders, drop in power and black smoke. Try some hard ploughing, if the smoke clears quickly you should be fine, it will come back if you don't keep the hard work on, the slobber is sometimes an extra feature of lack of work, it will come slower but go faster, the healthy exhaust will only show dry carbon and very faint black smoke at full power. Not all engines slobber, but all will smoke badly if not worked hard.
Sandy

[Johnm27]

Thanks sandy I think my next move will the get the injectors reconditioned cos. It starts on the button it runs great and it pulls no problem can’t for the life of me think what else it could be I don’t think it’s internal fingers crossed I hope someone else has said change the fuel filter again make sure you’re airfillter is clean and fresh oil in I don’t see what difference the filters will do at this point will try anything I can see it in at the tractor garage. Once again thanks sandy
Kind regards John

[Billy26F5]

If it runs great it suggests you shouldn't disturb the injectors. Try some hard ploughing for a decent period, it should clear the smoke. As for the dirt in the fuel only some bleeding will easily shift that, but as it runs fine it's a bit risky to fiddle with things and then regret that running has deteriorated. A dirty air filter will cause black smoke, a common problem with many engines, especially modern ones (due to lack of care, not because they're more sensitive to it which I don't think they are).
Sandy