Page 292 - CTS - Mechanic Diesel - TP

MECHANIC DIESEL - CITS

Fig 1

Reassembling unit injector
Before reassemble the unit injector all the components must be thoroughly cleaned, serviced tested and
measured, keep you particular attention to the following points during reassembly.
1 Use compressed air to remove fuel from the filter opening
2 Install the filter with the slotted end upward

3 Use new gasket and tighten the filter cap to the specific torque.
4 Slide the control rack in place so that the drill mark are visible, place the gear in the injector body with its drill
mark aligned between the two marks on the control rack.
5 Place the gear retainer on top of the gear

6 Position the bushing dowel pin over the slot and position the bushing to the injector body.
7 Assemble the value and spray tip on the bushing in the following order spill deflector seal ring check valve
cage, valve spring, spring seat spring cage, and spray - tip assembly

8 Carefully guide the nut over the stacked assembly and hand tight the nut while turning the spary tip, use a
torque wrench for tightening with 85 lbs/ft (115 nm).

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CITS : Automotive - Mechanic Diesel - Exercise 15.7