Tips & Troubleshooting
Spark Plug/Ignition System Maintenance
If your engine's spark plug does not seem to be running at 100 percent, learn what you can do to service and maintain it. Read More
Spec’d or Bust: Tips for Choosing a Construction Engine
There’s a lot to consider when spec’ing an engine on construction equipment. What features matter? What is the end-user looking for? Do noise levels make a difference? The right engine can significantly impact the performance of OEM construction equipment. This FAQ answers common questions for ensuring the right engine powers your equipment. Read More
Servicing the fuel tank
Fuel tanks are designed to keep your engine's fuel clean, vented and secure. Learn how to properly service and maintain them. Read More
What is the direct replacement for my engine?
When looking for a direct replacement for your commercial engine, consider all of these variables before making a decision. Read More
Why does my engine start and then shut down?
If your commercial engine starts up but shortly shuts down again, use these steps to diagnose and potentially fix this issue. Read More
Vanguard/Commercial Series Engine Identification
The Model, Type and Trim numbers, stamped directly into the engine, are used to identify our engines. Learn where to find them! Read More
How do you rebuild or overhaul an engine carburetor?
If basic adjustments don’t fix your engine problems or improve performance, learn more about how rebuilding the carburetor may help. Read More
Electrical Schematic & Wiring Diagrams
Look no further to find the electrical schematics or wiring diagram for your Vanguard commercial engine as well as alternator guides and resources. Read More
How Can I Find Part Number For Engine Replacement Parts?
Use your engine's Identified Parts List (IPL) to find all the correct parts for your Vanguard commercial engine. Read More
How do I troubleshoot & repair common engine problems?
Having engine problems? Use this comprehensive guide when troubleshooting issues such as an engine not starting, is stalling, surging or running rough. Read More