Caterpillar Diesel term
Hoping for some clarification on engine terminology regarding Caterpillar engine specifications.
The term is "on engine" or "off engine".
It refers to the measurements for adjusting the injector pump. The difference between to 2 measurements, "on or off" engine is about 0.066".
One measurement indicates injector spacing of 2.009" on engine or 2.156" off engine.
Any help would be appreciated