Belt Adjustment
NOTE:
Unless otherwise specified, references to Pickup include the F350 Super Duty commercial chassis.
Inspect belt for fraying. If fraying has occurred, ensure belt and tensioner are aligned properly. See Fig 1. If tensioner has reached its limit of travel, belt is excessively stretched and replacement of belt is required. If excessive noise is noticed from tensioner or idler, check for possible bearing failure. Belt tension adjustment is not required on vehicles with automatic belt tensioners. DO NOT apply belt dressing or any other additive to belt(s). Ensure belts are properly installed. See Figure-Figure
. See BELT TENSION ADJUSTMENT SPECIFICATIONS table.
Courtesy of FORD MOTOR CO. BELT TENSION ADJUSTMENT SPECIFICATIONS
| Application |
New Belt Lbs. (kg) |
Used Belt Lbs. (kg) |
| 2.3L, 3.0L |
110-140 (50-64) |
110-130 (50-59) |
| 2.9L |
120-160 (54-73) |
110-130 (50-59) |
| 3.0L |
110-140 (50-64) |
110-130 (50-59) |
| 4.0L |
108-132 (49-60) |
108-132 (49-60) |
| 4.9L |
90-117 (41-53) |
90-117 (41-53) |
| 5.0L & 5.8L |
77-111 (35-50) |
77-111 (35-50) |
| 7.3L Except Ambulance Vac. Pump W/ 3/8" Belt Vac. Pump W/ 1/2" Belt |
90-130 (41-59) 110-150 (50-68) |
65-85 (30-39) 75-95 (34-43) |
| All Other W/ 1/2" Belt |
140-180 (64-82) |
95-115 (43-52) |
| 7.3L Ambulance Alternator Vac. Pump A/C & P/S |
140-160 (64-73) 90-130 (41-59) 140-180 (64-82) |
140-160 (64-73) 65-85 (30-39) 95-115 (43-52) |
| 7.5L With Tensioner Alt. & Air Pump |
160-200 (73-91) |
110-130 (50-59) |