Service Procedure, Campaign Label Information
SERVICE PROCEDURE1. Open and prop hood.
Inspection
2. Water pump pulleys are stamped (on front face) with a 4-character production manufacturing date code which is visible on pulley as installed on vehicle (see illustration). First two (2) characters are the date code. Last two (2) characters can be disregarded. Check date code to determine if replacement is required.
Character Position: 1 2 3 4
Sample date code: F 7 - -
Character Position #1 = Month Of Production
A = January E = May J = September
B = February F = June K = October
C = March G = July L = November
D = April H = August M = December
NOTICE: Letter I is not used.
Character Position- #2 = Year Of Pulley Production
7 = 1987 8 = 1988
Character Positions #3 & #4 - Disregard
Therefore, sample date code "F 7 - -" equals June of 1987
SERVICE PROCEDURE (CONT'D)
If inspection indicates date code stamp F7, G7, H7, J7, K7 or L7, (i.e., pulleys built between June and November of 1987) replacement is required. Follow instructions under Pulley Replacement described below.
If date code stamp is anything other than F7, G7, H7, J7, K7, or L7, replacement is NOT required. Install campaign identification label and close hood.
Pulley Replacement
3. Install fender cover and disconnect negative battery cable.
4. Remove serpentine belt. To remove belt, rotate tensioner as shown in Illustration.
5. Remove heater hose pipe clips to allow sufficient room to remove water pump pulley.
6. Remove water pump pulley using Pulley Remover J25034-B or J29785-A.
7. Install new water pump pulley using Pulley Installer J25033-B or BT-7515.
8. Reinstall heater hose pipe clips.
9. Reinstall serpentine belt. To reinstall belt, rotate tensioner as shown in Illustration. Belt routing is also shown in Illustration.
10. Install Campaign Identification Label.
11. Connect negative battery cable, remove fender cover and close hood.
CAMPAIGN IDENTIFICATION LABEL
Each vehicle modified in accordance with the instructions outlined in this Product Campaign Bulletin will require a "Campaign Identification Label". Each label provides a space to include the campaign number, the five digit dealer code of the dealer performing the campaign service, and the date the vehicle was campaigned. This information may be inserted with a typewriter or ballpoint pen. Install the label only on a clean, dry surface of the radiator baffle where it is readily visible. (Additional campaign labels are available on stationery order as Form 7901-709).