Picture of the 5.7 L engine drive belt diagram
Even though General Motors has moved on and replaced this engine with lighter weight larger displacement power plants the old 5.7 L remains a favorite for hot roders and truck drivers alike.
This makes the condition and the pulling force critical for proper belt operation.
Worn or weak tensioners can cause belt noise as well as improper rotation of accessories.
When operating the tensioner the travel should be smooth (not notchy) and the force required to disengage the belt should increase as you reach the travel stop. Also look closely at the unit to make sure that no looseness is present.
When to replace the engine belt
The exception to this rule is when the belt becomes noisy. The face of the belt can become glazed with no visible cracks and can cause unwanted engine belt noises. The speed at which a belt will become glazed is directly linked to the quality and materials used during manufacturing.
If your looking for a different sized motor or application I have a few more listed on my engine belt diagrams page.
For more information about auto repair visit this blogs main page. This next link takes you there from this page about the 5.7 L belt diagram.