Engine Starting Systems

Question 1

Dry start

Answer 1

No light up within 10 secs after opening fuel valve

No egt rise, rpm, stagnation and ff

Does not require any other procedures before stating again

Question 2

Wet start

Answer 2

No light up within 10secs after opening fuel valve

No egt rise, rpm, stagnation, abnormal ff

Due to faulty ignition/plug

Vapour must be removed to avoid a subsequent hot start

Question 3

Hot start

Answer 3

Egt is excessively high and exceeds max value

Causes - low air pressure to the starter, failure to vent and drain following a wet start

Start cycle needs to be terminated

Question 4

Hung start

Answer 4

Rpm stagnates below idle with high egt

Causes - fuel control malfunction, low air pressure to starter motor, compressor stall

Shut down engine