Drive Belt Routing: Description

The single ("serpentine" or "V" ribbed) drive belt system has been adopted by several manufacturers as a replacement for multiple "V" belt systems previously offered. The "serpentine" belt requires a suitable belt tensioner similar to those used to control timing belt tension.

Use of a tensioner allows engine accessories to be mounted rigidly on the engine. Individual accessory belt tension adjustment is not required. The single belt drive system has a predicted life of 100,000 miles before replacement is required.

The belt tensioner has a wide functional range and is capable of maintaining tension during the expected life of the belt. Tensioner cannot compensate for extreme belt lengths. Poor tension control and possible tensioner damage can result from excessive belt length.