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MAPresure ,stays at 29.2

by Bob Prescott in 912 / 914 Technical Questions 8 years ago

MAP is 29.2 before starting my 914 ,then after Take off it stays at 29.2 doesn't go up to 39 ..what do you think is the problem

Re: MAPresure ,stays at 29.2

by Rob Seaton » 8 years ago

Rob Seaton

3 1.32k 240

We need some more info Bob, what is the MAP after you start/run-up/take-off?

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Re: MAPresure ,stays at 29.2

by Bob Prescott » 8 years ago

Bob Prescott

1 2 0

MAP, before start up is 29.2,then after start is 29.2,and after T.O. MAP stays at 29.2 never moves,, RPM goes to 5700 after T.O today, bring it back to 5200 RPM engine runs great,,any Idea on MAP.anybody ?

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Re: MAPresure ,stays at 29.2

by David Bird » 8 years ago

David Bird

0 7 0

The capillary is dissconnected and it can only see ambiant pressure

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Re: MAPresure ,stays at 29.2

by Rob Seaton » 8 years ago

Rob Seaton

3 1.32k 240

Yes, sounds like the MAP gauge is not connected to the crossover tube fitting.

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Re: MAPresure ,stays at 29.2

by Bob Prescott » 8 years ago

Bob Prescott

1 2 0

There was a ambient line disconnected ,fix it every thing is ok,,thanks

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