Accessory Drive Belt - Noise/Excessive Wear

Article No.
94-1-10

01/12/94

^ BELT - FRONT END ACCESSORY DRIVE (FEAD) - EXCESSIVE IDLER/TENSIONER PULLEY WEAR

^ BELT - FRONT END ACCESSORY DRIVE (FEAD) - NEW BELT FOR ABRASIVE ENVIRONMENT

^ NOISE - "THUMP" FROM FRONT END ACCESSORY DRIVE (FEAD) BELT - BELT EDGE STARTS TO FRAY

LIGHT TRUCK:
1987-93 BRONCO, ECONOLINE, F-150-350 SERIES

ISSUE:
Front End Accessory Drive (FEAD) belts have a cloth backing which can trap abrasive particles, resulting in belt wear and erosion of the idler pulleys.

ACTION:
Replace the current FEAD belt with a new neoprene-backed belt which does not retain abrasive particles or promote pulley wear. Refer to the following procedure for service details.

1. Inspect the tensioner and idler pulleys for wear of the drive surfaces.

NOTE:
NOMINAL PULLEY DIAMETER IS 90 mm (3.453") OR 76 mm (2.916"); PULLEYS WORN TO 88 mm (3.377") OR 74 mm (2.839") SHOULD BE REPLACED.

2. Select the appropriate neoprene-backed belt and install per standard belt routing (refer to Service Manual Section 03-05).

3. Insure that all belt vee's are in all pulley grooves.








Parts Block

OTHER APPLICABLE ARTICLES: 89-10-11
WARRANTY STATUS:
Eligible Under The Provisions Of The Bumper To Bumper Warranty Coverage For 1992-93 Models And Eligible Under Basic Warranty Coverage For Other Model Years. Emission Warranty Coverage Applies If Vehicle Is Equipped With Thermactor System

OPERATION DESCRIPTION TIME
940110A Replace Belt - 0.3 Hr.
F-Series/Bronco
940110B Replace Belt And Tensioner 0.4 Hr.
- F-Series/Bronco
940110C Replace Belt - Econoline 0.4 Hr.
940110D Replace Belt And Tensioner 0.5 Hr.
- Econoline

DEALER CODING
BASIC PART NO. CONDITION CODE
8620 30

OASIS CODES: 497000