Recent Entries

• What Are the Common Problems with Cummins Barrel and Plunger As

  by long shang Nov 6
  Over time, the barrel and plunger can experience wear due to fuel contamination, poor lubrication, or long-term operation under heavy loads. Common problems include pressure loss, uneven fuel delivery, and hard engine starting. When the plunger or barrel surface becomes worn, fuel can leak pas...

• What Is a Cummins Barrel and Plunger Assembly?

  by long shang Nov 6
  The Cummins barrel and plunger assembly is a key component of the fuel injection system in many Cummins diesel engines. It is responsible for generating the high fuel pressure required for efficient combustion. The plunger moves up and down inside the barrel, driven mechanically by the camshaf...

• What are the signs that my Cummins injectors or their parts are

  by long shang Oct 21
  Recognizing the early warning signs can save you from more extensive engine damage. Look out for these common symptoms: Hard Starting or Misfiring: Difficulty starting the engine, especially when cold, or a rough, shaky idle indicates one or more injectors aren't performing correctly. ...

• What are the key components of a Cummins fuel injector?

  by long shang Oct 21
  A modern Cummins fuel injector is a complex assembly, not just a single part. Understanding its key components helps in diagnosing issues. The main parts include: Nozzle and Tip: This is the business end of the injector. It has extremely fine holes that atomize the fuel into a fine mist fo...

• What is the purpose of the "Stop" and "Run" positions on the PT

  by long shang Sep 23
  This lever is a crucial manual control for engine operation and safety. RUN Position: In this position, fuel flows freely from the pump to the injectors. The engine is allowed to operate normally. STOP Position: Moving the lever to "Stop" does not shut off an electrical circuit l...

• What does "PT" actually stand for?

  by long shang Sep 23
  This is the fundamental question. "PT" is an acronym for Pressure-Time. This name perfectly describes the operating principle of the pump and the system: Pressure: The fuel pump generates a pressure of fuel and supplies it to the injectors. Time: The time that...

• How can I verify the authenticity of a Cummins part?

  by long shang Sep 3
  Protecting your engine from counterfeit parts is essential. Follow these steps to ensure you're getting the real deal: Source from Authorized Distributors: The simplest and most reliable method is to purchase parts directly from an authorized Cummins distributor or dealer. Their suppl...

• What is the difference between Genuine, OEM, and Aftermarket Cu

  by long shang Sep 3
  This is the most crucial question for ensuring engine reliability and longevity. Genuine Cummins Parts: These are the gold standard. They are designed, engineered, and tested by Cummins Inc. themselves. Purchased through an authorized Cummins distributor or dealer, they come with a full wa...