Injection Pump Timing

Timing Alignment Marks:

Original factory timing is accomplished in two ways. The pump is marked with a static timing mark, and then is dynamically checked by the factory. The dynamic timing mark is designated by a circle. The first mark, a straight line scribed across both the pump flange and front housing, is the static timing mark.

For the engine to be properly timed, the two halves of the circle, between the pump flange and the front housing must be aligned. The engine must be off while timing is being set.

A service pump will not be marked with a dynamic timing mark (circle), and should be timed using the static timing mark (if a production pump is not marked with a dynamic timing mark, it should be timed using the static timing mark).

1. Injection Timing.
- Loosen the three pump retaining nuts.
- Align the mark on the injection pump with the mark on the front cover.
- Tighten pump retaining nuts to 40 Nm (30 ft lbs).

2. Adjust throttle rod.