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Aircraft Maintenance TroubleShoot > Aircraft Turbocharger & Controller

Wastegate oil pressure specifications. Exhaust bypass valve

These specifications were originally published by AirResearch in the 1970's. They may have changed since then. Contact the current certificate holder (Kelly Aerospace) for updated information.

1. The valve must start to close by pressure P1, maximum;
must be fully closed by P2, maximum;
must start to open by P3, minimum;
and must be fully open by P4, minimum; psi.

AirReasearch P/n
                        P1     P2     P3     P4
470780-13     15     35     25     7
470780-14     15     35     25     7
470780-15     18     55     35     4
470780-16     18     55     35     4
470818-1     20     39     18     6
470818-2     20     39     18     6
470818-3     30     57     38     17
470818-5     20     48     28     5
470818-6     20     39     18     6
470818-10     20     48     28     5
470842-3     15     52     33     5
470842-4     15     52     33     5
470908-6     20     42     27     5
470908-11     20     42     27     5
470908-12     20     42     27     5
470908-13     20     42     27     5
470908-15     20     42     27     5
470908-16     20     42     27     5
470908-17     20     42     27     5
470954-1     20     48     28     5
470830-10     18     52     32     4
470830-20     18     52     32     4
470864-1     23     51     32     9
470872-1     23     51     32     9
 

 

 



 

 


 

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