Starting Air Valve Leak Testing Main Engine

Starting Air Valve Leak Testing 
  • There are two methods to test the leakage of starting air valve in main engine.

First Method
  • >Close the air valve to  the starting air distributor 
  • >Give an air kick to the main engine 
  • >Monitor the propeller shaft. if it's rotating, means starting air valve is leaking. 

Second Method   
  • >Close the air valve to the starting air distributor   
    >Put cloths over all indicator cocks.
    >Give a kick to the main engine
    > Clothes should not come out from any of the indicator cocks if it comes out it implies leakage in that valve.