F 350 4WD Pickup V8-351 5.8L VIN H EFI (1997)
Drive Belt Tensioner: Service and Repair
Belt Tensioner Pulley Replacement
Conditions requiring pulley replacement are excessive pulley wear or pulley bearing noise, usually resulting from extended operation in abrasive off-road
conditions.
Using a 16 mm closed-end wrench, remove the drive belt.
REMOVAL
1. Using the 16 mm wrench, loosen the belt idler pulley retention bolt or nut.
NOTE: Excessive rearward force on the bolt during removal can overstress and crack the tensioner arm. Pulleys being replaced for suspected
bearing wear should be evaluated for rough bearings. Bearing noise that continues or rapidly returns after a replacement pulley is installed is
usually belt chirp rather than worn bearings. Bearings should rotate smoothly with a slight resistance due to the permanent lubrication.
2. Remove bolt or nut and dust shield and remove the drive belt tensioner from the tensioner arm locating boss.
INSTALLATION
1. Follow the removal procedure in reverse order observing the correct rotation of the retention bolt.
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Tighten bolt or nut to specifications.
