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-   -   Fuel injection system flushing flow rates (https://vansairforce.net/community/showthread.php?t=46577)

AltonD 08-09-2009 12:09 PM
Fuel injection system flushing flow rates
 
A question for all of you seasoned mechanics:

I have a factory new IO-360-M1B with Pecision Airmotive fuel injection.

I have flused up to the fuel servo and get good flow rates. On the engine side of the servo, I am only getting 4.3 PGH with mixture full rich and throttle wide open. Is this normal? I am thinking it is normal with no airflow through the servo.

BTW, fuel pressure is 33 PSIG.

Kevin Horton 08-09-2009 01:58 PM
The servo varies the fuel flow as a function of the air flow and mixture control. With zero air flow, you shouldn't expect a high fuel flow out of the servo. I wouldn't start worrying yet.

Walt 08-09-2009 02:22 PM
Sounds right...
 
That's the about the same as mine with AFP servo.


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