How do you set timing on ford 3000 diesel with simms replaced from cav?

To set the timing on a Ford 3000 diesel engine with a Simms injector pump, first ensure the engine is at TDC (Top Dead Center) on the compression stroke of cylinder one. Then, align the timing mark on the pump drive gear with the timing mark on the engine. Next, rotate the pump to set the timing to the specified degrees before TDC, typically around 24 degrees for the Ford 3000. Finally, securely fasten the pump, double-check the alignment, and start the engine to verify proper operation.