INJECTOR SYNCHRONIZATION, FUEL SETTING, AND FUEL TIMING - CONTINUED
Injector spring must be slightly compressed to allow free movement of injector rack. Either rocker arm
assembly or spring compressor must be installed on all injectors to prevent internal damage to injectors.
Spring compressor is shown installed on no. 1 injector.
Apply a small amount of clean engine oil to top of injector (1) and install spring compressor (2) and bolt (3) into vacated
rocker arm bolt hole.