F 250 4WD Pickup V8-6.9L DSL (1983)
Injection Timing: Technical Service Bulletins
Injection Timing - Methods and Equipment
Article No. 85-16-24
TIMING (6.9L DIESEL) - FORD VS. INTERNATIONAL HARVESTER (IH) METHOD AND EQUIPMENT
LIGHT TRUCK 1983-85 E- & F-SERIES
In setting timing on the 6.9L diesel engine, be aware that International Harvester dealers use a different method and equipment than the one used by Ford
dealers.
International Harvester dealers set timing by measuring injection impulse at the fuel injection nozzles (similar to the 2.4L BMW diesel engine on the
Mark VII and Lincoln Continental). The specified setting will always be in BTDC~.
The Ford equipment measures combustion through a luminosity probe inserted into the No. 1 glow plug hole. The specified setting will always be in
ATDC~.
The above differences should be remembered since some Ford dealers call International Harvester dealers for directions on setting the timing for
maximum performance. Most International Harvester dealers are unaware of the Ford method of setting timing and may give the Ford dealer timing
specifications in BTDC~. Setting timing in BTDC~ with the Ford timing equipment will result in excessive engine operating noise and will eventually
cause a lack of power condition brought on by piston damage.
OTHER APPLICABLE ARTICLES: 83-24-23, 83-12-16, 83-10-19
WARRANTY STATUS: "INFORMATION ONLY"
