Ursus C330 1983 Black Smoke Issue: Cylinder Head Pistons, Injector Tips & Injection Pump

The discussion revolves around a Ursus C330 tractor experiencing persistent black smoke issues after the replacement of the cylinder head pistons and injector tips. Participants suggest that the injection pump and injectors are likely culprits for the smoke. Additionally, they inquire about the condition of the cylinder head and the possibility of leaking valves. The author confirms that the cylinder head is new and that the ignition on the pump is correctly set. Another suggestion includes checking the air filter for obstructions, as insufficient air intake can also lead to black smoke emissions.
Summary generated by the language model.