Bronco Full Size L6-300 4.9L (1987)
Timing Marks and Indicators: All Technical Service Bulletins
Campaign - Mis-stamped Ignition Timing Pointer
Number:
B7987
J.
P. King Ford Motor Company
Manager
3000 Schaefer Road
Service Engineering Office
P.O. Box 1904
Ford Parts and Service Division
Dearborn, Michigan 48121
August, 1987
To:
All Ford Dealers (Please Give Copies of This Bulletin to Your Parts and Service Managers)
Subject:
Owner Notification Program B79 - Certain 1987-Model E & F Series and Bronco Trucks Equipped With 4.9L Engines -
Ignition Timing
Trucks
All 1987-model E & F Series and Bronco trucks equipped
Affected
with 4.9L engines, at all plants producing these trucks
from December 3, 1986 through February 27, 1987.
Reasons for
Engines in the affected trucks were produced with a mis-
This Program
stamped ignition timing pointer. This pointer will cause
incorrect ignition timing if the numbers stamped on the pointer are used when readjusting the timing.
Engines that are not timed properly may experience spark knock with potential for engine damage.
Program
Owners of trucks affected by this program will be sent a
Provisions
decal that describes the correct way to readjust the
ignition timing. Instructions will also be sent describing the location where the decals are to be affixed on the trucks.
Action By Ford
Owners of affected trucks will be mailed the letter
Motor Company
shown on Attachment II. Enclosed with that letter will
be a decal that the owner may affix to the truck.
Action By
Affix a decal to trucks that may be in dealer stock.
Dealers
Affix decals to trucks that are returned by the owners.
Additional
Technical Instructions, Labor Operations, and Claims
Information
Preparation Instructions are contained on Attachment I.
Contact your Service Zone Manager if you have questions regarding this program.
