What Causes a Single-Cylinder Diesel Engine to Emit Black Smoke and Lose Power?

[AngelaAnn]

Introduction to the causes of a single-cylinder diesel engine emitting black smoke and losing power: 1. The most common cause is a clogged air filter: The fuel injector does not spray but drips fuel. 2. Ignition timing issues: Generally, ignition has minimal impact; early fuel supply timing results in a crisp sound and blue smoke, while late timing causes rough running or backfiring with white smoke. 3. Problems with the fuel pump: Insufficient plunger pressure; check if the screw on the vacuum tube connecting the turbocharger to the fuel pump is loose, and also if the tube connecting the turbocharger to the intake is loose. 4. Check if the engine is air-cooled: A dirty air-cooling system can also cause loss of power and black smoke emission.