LUCAS INJECTION

Lucas MK1 and MK2 fuel / petrol injection

 

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Lucas Service Training Centre
Petrol Injection Mk II


                                                     Fig. 19

 

 

 


                                                    Fig. 20

 

 

 

 


                                               Fig. 21

DISMANTLING AND RE-ASSEMBLY OF METERING DISTRIBUTOR/CONTROL UNIT

1.    The metering distributor/control unit can be dismantled without difficulty and special calibration equipment is not required, providing the following parts are not disturbed:

(i) The three calibration screws on the end of the depression chamber.
(ii) The full load setting screw. (These are shown in Figure18 items 2, 3, 4 and
45).

Important
UNLESS THE NECESSARY CALIBRATION EQUIPMENT (CONSISTING OF A VARIABLE VACUUM SUPPLY 0-28 Hg AND GAUGE AND SUITABLE TEST RIG) IS AVAILABLE, THE CALIBRATION SCREWS MENTIONED ABOVE MUST NOT BE DISTURBED. IF A NEW CONTROL UNIT IS FITTED TO A DISTRIBUTOR OR VICE-VERSA, OR ANY NEW PARTS FITTED OTHER THAN SEALS RE-CALIBRATION WILL BE NECESSARY.

CLEANLINESS OF WORK AND TOOLS
As cleanliness of petrol injection equipment is of vital importance, the working area of the bench, and the tools should be thoroughly clean at all times. In addition, all the internal parts of the equipment should be washed in clean kerosene before re-assembly. The rotor and sleeve assembly is particularly vulnerable to dirt and damage through mishandling. When removed from the metering unit, it must be placed where it cannot be knocked or scratched.

2. DISMANTLING METERING DISTRIBUTOR/CONTROL UNIT



(a) Separating the Metering Distributor from Control Unit

(i) Remove the four nuts which secure the mixture control unit to the metering distributor.

Note: The balance spring of the cam follower is compressed between these two units, so they must be held together while the nuts are undone and then allowed to part slowly. The spring and cam follower are then removed.

(b) Dismantling the Control Unit

(i) Remove cover plate securing screws and take off cover plate.

(continued)

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