Atlas Copco Rich Combustion / Overfueling

Excessive black smoke from exhaust during operation

This repair may involve working with high voltage components or water connections. Always unplug the appliance before removing any panels.

If you are not confident in your ability to perform this repair safely, we strongly recommend contacting a professional technician.

Possible Causes

Clogged air filter, Overloading, Faulty turbocharger, Incorrect fuel injection timing

Safety first: Operate in a well‑ventilated area. Avoid breathing exhaust fumes.

Check air filter: Inspect and replace a dirty air filter element.
Reduce load: Temporarily reduce load to see if smoke decreases. If so, review load sizing.
Inspect turbocharger (if fitted): Check for oil leaks, damaged compressor wheel, or restricted intake piping.
Schedule engine tune‑up: Persistent black smoke under normal load may require injector and timing checks by a diesel specialist.

Medium 3/5

Air Filter Element

Check Price on Amazon

We may earn a commission from links on this page.