Diesel Engine Inline Pumps

The parts breakdown for a Bosch size A Series PE inline pump for six-cylinder engines is shown in Fig. 5-3. Shims (21 and 49) establish camshaft float. Two fuel delivery adjustments are provided. The basic setting is determined by the height of the adjustment bolts (35) that thread into the tops of each tappet. In addition, friction clamps (29) permit the control-sleeve pinions (30) to move relative to the rack to compensate for tooth wear and production tolerances. Fuel-delivery adjustments for this and all other injection pumps must be made on a test stand.