Front End Accessory Drive Belt - Damaged/Falls Off
Article No.97-17-12
08/18/97
FRONT END ACCESSORY DRIVE (FEAD) BELT -
BELT DAMAGE AND/OR BELT COMES OFF - 4.6L
MANUAL TRANSMISSION VEHICLES BUILT
THROUGH 5/1/97
FORD:
1996-97 MUSTANG
This TSB article is being republished in its entirety to revise the vehicle built through date.
ISSUE:
The Front End Accessory Drive (FEAD) belt may become broken or frayed and/or detach from (or roll off of) the engine. This may be caused by deceleration of the engine.
ACTION:
Replace the water pump pulley with a new flanged-type water pump pulley and tensioner. The flanged pulley and tensioner should reduce the possibility of belt damage and belt roll-off. Refer to the following Service Procedure for replacement details.
SERVICE PROCEDURE
1. Remove FEAD belt and discard.
2. Verify that the vehicle has the new flanged water pump pulley installed (Figure 1). If raised flange pulley is not installed, remove and discard water pump pulley. Install new Pulley (F6ZZ-8509-AA) and torque bolts to 20-30 N.m (15-22 lb-ft).
3. Remove the three (3) fasteners that mount the automatic belt tensioner. Retain the nut. Discard the tensioner, belt guide and both bolts (Figure 2).
4. Install the new Tensioner (F7AZ-6B209-CB) using one (1) existing stud and two (2) new Studs (N807336-S2). Torque the studs and nuts to 20-30 N.m (15-22 lb-ft).
NOTE:
THE PULLEY MUST BE PRESSED ON 0.67 mm PAST THE END OF THE SHAFT. REFER TO FIGURE 3.
5. Remove the power steering pump pulley and install new raised flanged Power Steering Pulley (F7ZZ-3A733-AA).
6. Install a new FEAD Belt (F7AZ-8620-AA)
7. Install the Tensioner Positive Stop (F7ZZ-19A439-AA) onto the two (2) studs that mount the tensioner. Fasten the stop bracket with two (2) Nuts (N804178-S309). Torque the nuts to 20-30 N-m (15-22 lb-ft). Refer to Figure 4.
8. On the bottom of the power Steering pump there is a power Steering line orientation clip that is mounted with a Single fastener Remove and discard the clip Install the replacement Power Steering Orientation Clip (F7ZZ-3E523-AA).
PART NUMBER PART NAME
F6ZZ-8509-AA Water Pump Pulley
F7AZ-6B209-CB Tensioner
F7ZZ-8620-AA Belt
N807336-S2 Studs
F7ZZ-19A439-AA Tensioner Positive Stop
N804178-S309 Nuts
F7ZZ-3E523-AA Power Steering Orientation clip
F7ZZ-3A733-AA Power Steering Pulley
OTHER APPLICABLE ARTICLES: NONE
SUPERSEDES: 97-14-10
WARRANTY STATUS: Eligible Under The Provisions Of Bumper To Bumper Warranty Coverage
OPERATION DESCRIPTION TIME
971712A Repair As Outlined - 4.6L 0.9 Hr.
DOHC
971712B Repair As Outlined - 4.6L 0.7 Hr.
MFI
DEALER CODING
CONDITION
BASIC PART NO. CODE
8509 42
OASIS CODES: 203100, 206000, 208000, 208999, 402000, 499000