I have posted this in the Iseki forum:
a lot of thick, black, sooty smoke: injector?
I have 2022 Massey Ferguson GC 1723EB tractor (TLB). It just turned 500 hours recently and it has an Iseki E3112-XB03 engine. I has always had a little bit of black smoke at startup and under heavy load, but it has now started to really pour it out, again, especially under heavy load. It has become a bit harder to start, and smokes then, and it also smoke a bunch when the engine is throttled down from 2500 to 1500 rpm (under no load). It does not seem to have lost a great deal of power, nor does it seem to be guzzling fuel I replaced the fuel filter (it was clean) and the air filter (pretty clean too), gave it the Seafoam treatment: filled the fuel filter bowl with Seafoam (of course, it doesn't hold much) and put the rest in the fuel tank; all of these had no effect. I got fresh fuel from another station, filled the fuel filter with Seafoam again, and put an entire 5.25-ounce bottle of Lucas upper cylinder cleaner with injector cleaners in. Still no change, so I am guessing that I need to clean the injectors.
Is that something I can do myself or do I need to take it to the dealer? Or can any service station do this?
Any tips on removing them? Do I need new gaskets?
TIA, Dick