Maserati Manual MK1
Lucas World Service News WSN604 Export
Mistral + 3500 GT Owner's Manual

FAULT B: ENGINE FIRES BUT WILL NOT RUN (COLD)

Assuming there is sufficient fuel in the tank,. and that the ignition/timing has been checked as being in order.

N.B. If the Method or Action involves following the procedure of A. 5. (Fault A), then at the end of the diagnosis, Reconnect
       the lead from the thermal switch to the oil pressure switch.

TEST
B.1. Pulsations at Metering Distributor

METHOD
Proceed to Fault A, and follow through to the end of Method A.1.

ACTION
a) If pulsations are felt at each non-return valve proceed to B.2.

b) If no pulsations are felt at each non-return valve, proceed to 'Engine will not start' (Fault A) ref. A.5 and .hence 1..9 to A.11 inclusive.

c) If pulsations are felt at only two (4-cylinder'engines), three (6-cylinder engines) or six-(8-cylinder engines), a nozzle stuck closed
  should be suspected. REMOVE the injectors where NO pulsations arc felt and blow through them with compressed air in excess
  of 60 p.s.i. This should ascertain the faulty nozzle. Exchange for new nozzle.

TEST
13.2 Faulty Control Unit

METHOD
Proceed to fault A ref. A.5 and hence to Method A.12.

Action
a) If control is found to function satisfactorily, proceed to B3.

b) If a fault is found on the Control Unit, proceed in accordance with Action A.12 (b).

TEST
B.3 Faulty Metering Distributor

METHOD
The. fault may be a sheared drive to the Metering Distributor rotor, causing the rotor. to run out of phase, or intermittently.
Proceed to Fault A, directly to method A.11, and by prolonged observation of the Metering Distributor rotor, the fault may
become apparent as intermittent rotation of the rotor.

ACTION
a) Proceed as Action A.11 (a) to remove the Metering/Control Unit. A replacement should then be fitted.

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