B5.9G, B5.9LPG – Troubleshooting and Repair Manual – 013-021   Belt Tensioner, Automatic (Alternator)

Remove the drive belt.

3/8-Inch Square Drive

Lift belt tensioner to relieve tension in the belt, and remove the belt.

NOTE: The belt tensioner is spring-loaded and must be pivoted away from the drive belt. Pivoting in the wrong direction can result in damage to the belt tensioner.

15 mm

Remove the capscrew and belt tensioner from the bracket.

3/8-Inch Square Drive, 15-mm Wrench

Install the belt tensioner and tighten the capscrew.

Lift and hold the tensioner. Install the drive belt and release the tensioner.

Service Tip: If difficulty is experienced installing the drive belt; for example, the belt seems too short; position the belt over the grooved pulleys first; then, while holding the tensioner up, slide the belt over the water pump pulley.