GENERAL SPECIFICATIONS
| Item | Specification |
|---|---|
| 4.6L, 5.4L and 6.8L gasoline and natural gas 6 rib Poly-V belt | Tension is within specification if the tensioner is within the indicator markings |
| 6.0L 8 rib Poly-V belt | Tension is within specification if the tensioner is within the indicator markings |
GENERAL SPECIFICATIONS
Note. All belts new and used must meet the same specifications for the specific application.
TORQUE SPECIFICATIONS
| Description | Nm |
|---|---|
| Belt idler pulley bolt - 4.6L, 5.4L and 6.8L | 25 |
| Belt tensioner bolts - 4.6L, 5.4L and 6.8L | 25 |
| Belt idler pulley bolt (6.0L diesel) | 47 |
| Belt tensioner bolts (6.0L diesel) | 25 |
| Crankshaft pulley bolts (6.0L diesel, dual generator) | 47 |
| Generator mounting bracket bolts (6.0L diesel, dual generator) | 47 |
TORQUE SPECIFICATIONS
Ford vehicles are equipped with a Poly-V drive belt. To make sure of maximum belt life, newly installed drive belts must be of the same type and specification as originally installed.
The drive belt is tensioned by a spring-loaded tensioner that maintains correct belt tension at all times.
A loose drive belt will result in slippage, which can cause a noise complaint or incorrect accessory operation. An overly tight drive belt will place severe loads on accessory bearings and result in premature drive belt or accessory failure. Refer to the following illustrations for the belt routing.
