75 4 DLT ENGINE Tighten adapter cap nut. Rotate crankshaft in anti-clockwise direction by approximately 30 degrees. Precisely locate bottom dead center of fuel injection pump plunger by slight rotation of crank shaft in either direction. Set dial gauge reading to 0. Rotate the crank shaft clockwise to TDC position and insert the timing pin in the flywheel. Refer Figure 156 Slowly rotate fuel injection pump till plunger lifts by 0.71+0.02 mm (dial gauge). Rotating fuel injection pump towards crank case increases plunger lift and vice versa. Refer Figure 157 Fully tighten fuel injection pump front mounting nuts, rear mounting bolt and taper nut in this position. Remove timing pin from cylinder block. Rechecking timing Rotate crank shaft by two full rotations. Check injection pump plunger lift is 0.71+0.02 mm (dial gauge). In this position it should be possible to insert timing pin in the flywheel. If not, repeat fuel injection timing adjustment procedure. Remove dial gauge and timing adapter, 2654 5890 05 09. Refer Figure 158 Fit back timing plug on fuel injection pump. Connect high pressure injection pipes to fuel injection pump. Refer Figure 159 Fig. 157 Fig. 158 Fig. 159 Fig. 156
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