The 5.7 Chevy 350 engine is a popular choice among truck and car enthusiasts, and understanding the belt routing for models without air conditioning (AC) is essential for maintenance and repairs. This guide provides a clear overview of the belt diagram and routing for the Chevy 350 when the AC system is not in use.

Overview of the 5.7 Chevy 350 Belt System

When removing the AC compressor from a 5.7 Chevy 350 engine, it's crucial to ensure that the serpentine belt is properly routed to maintain functionality of other components such as the alternator and power steering pump. The absence of AC means that an idler pulley is often required to replace the compressor.

Belt Routing Diagram

For a 5.7 Chevy 350 without AC, the typical belt routing involves connecting the following components:

  • Crankshaft Pulley
  • Power Steering Pump
  • Alternator
  • Water Pump
  • Idler Pulley (if AC is removed)

The belt should be routed as follows:

1. From the crankshaft pulley, go to the power steering pump.

2. From the power steering pump, route to the water pump.

3. From the water pump, go to the alternator.

4. Finally, return to the crankshaft pulley.

This routing ensures that all necessary components are driven efficiently without the load of an AC compressor.

ComponentFunction
Crankshaft PulleyDrives all accessories
Power Steering PumpProvides steering assist
Water PumpCirculates coolant
AlternatorCharges battery
Idler PulleyMaintains belt tension

Important Considerations

  • Belt Length: When switching from an AC to a non-AC setup, you may need a shorter serpentine belt. It's advisable to check with an auto parts store for the correct size.

  • Idler Pulley: If your vehicle was originally equipped with AC, you will need to install an idler pulley in place of the AC compressor to maintain proper tension on the belt.

  • Tension Adjustment: Ensure that the belt tensioner is functioning correctly to avoid slippage or premature wear on components.

FAQs About 5.7 Chevy 350 Belt Routing

FAQs About 5.7 Chevy 350 Belt Routing Without AC

    • What happens if I don't use an idler pulley?
      If you do not install an idler pulley after removing the AC compressor, you may experience issues with belt tension, leading to slippage or damage.

    • Can I use a longer belt instead of an idler pulley?
      No, using a longer belt may not provide adequate tension and could lead to operational issues.

    • Where can I find a replacement belt?
      You can find replacement belts at most auto parts stores or online retailers by specifying your vehicle's make and model.

By following this guide, you can successfully reroute your Chevy 350's belt system without AC, ensuring reliable performance and longevity of your engine components.