Maserati Manual MK1
Lucas World Service News WSN604 Export
Mistral + 3500 GT Owner's Manual
LUCAS WORLD SERVICE NEWS
WSN 604 EXPORT
Reprinted April 1967
THE LUCAS PETROL INJECTION SYSTEM
The "Lucas" petrol injection system has been developed and proved over a number
of years to give added engine performance, combined with reliability and
increased
economy over the conventional carburetor system.
Fundamentally the system differs very little from that
outlined in publication number 1780 "Developments in Petrol Injection
Equipment," which should be referred
to for general information purposes. Modifications incorporated in the current
system include a permanent magnet motor in place of the wound field type shown
in the brochure, the addition of a thermal relay, and a manual control. The
relay is mounted on the dashboard and incorporates a warning light and resetting
button.
It has been designed to switch the pump off, after approximately 30 seconds,
should the ignition be left on and the engine not started in that time. This
prevents
unnecessary drain on the battery. The manual control has been introduced to
assist cold starting conditions. This also is mounted on the dashboard.
In addition to the theory given in publication number 1780 the following fault
finding notes, outlining the procedure to be adopted when servicing petrol
injection
equipment, will enable you to determine and rectify faults which may occur in
service.
The following test equipment is needed to carry out a systematic check:-
0 - 30 amp.
D.C. Ammeter
0 - 20 volt
D.C. Voltmeter
0 - 150 p.s.i.
Pressure gauge
FAULT Diagnosis WITH P. I. Equipment.
Faults on P.I. Equipment have been categorized under 'FAULT'
headings In the introductory paragraph to each fault reference has been
given to causes outside
those of P.I. Equipment which could present the same symptoms. It will be
assumed that preliminary checks on such causes, in accordance with recognized
procedure,
will have been carried out before commencing with a P.I. diagnosis.
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