3
4
5
6
Checking and repairing fuel injectors
33
Disassembling fuel injectors
Fig. 3
Insert injector assembly (the inlet orifice facing
downwards) into the clamping device and hold in a
vice. Remove union nut and take out nozzle body,
intermediate washer, pressure pin, compression
spring and shim. Take pressure pipe neck out of
holder.
Repairing fuel injectors
Fig. 4
Clean interior of injection body (1) with a small
wooden stick and petrol or Diesel fuel.
Clean nozzle needle (2) with a clean cloth.
Note:
To prevent corrosion, do not touch lapped
faces of nozzle needle with the fingers. The
needle and injection nozzle are matched to
each other and must not be interchanged.
Check cleaned parts for wear and damage, replac-
ing them if necessary. De-grease new parts.
Assembling fuel injectors
Fig. 5
Insert pressure pipe neck into clamping device.
Insert shim and compression spring.
Fig. 6
Insert pressure pin and intermediate washer.
2645
2646
1
2
2654
2655
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