INJECTOR SYNCHRONIZATION, FUEL SETTING, AND FUEL TIMING
THIS WORK PACKAGE COVERS
Injector Synchronization, Fuel Setting, Setting Top Center Position (TCP), Fuel Timing
Tools and Special Tools
Tool kit, general mechanic's (Item 33, WP 0172
Battery disconnect switch in OFF position (TM 5-
3800-205-10-1 or TM 5-3800-205-10-2)
Injector synchronization is setting of all injector racks to a reference position so each injector gives
same amount of fuel to each cylinder. This is accomplished by setting each injector rack to same posi-
tion while control linkage is in a fixed position.
Synchronizing injectors is accomplished by placing a Sync Gage Block between injector rack head pin
and injector body of no. 1 injector.
There is no adjustment screw for no. 1 injector since it is the reference point for all other injectors.
Therefore, no synchronizing adjustment is made for no. 1 injector.
Always synchronize an injector after it has been removed and reused or replaced. If no. 1 injector has
been removed and reused or replaced, synchronization of ALL injectors must be checked/adjusted.