No Alternate Air?

[Rob58]

Here’s a question for my forum friends that are familiar with the IO-470 setup as used in the 14-19-3… where is the alternate air mechanism to be found? I would think that having an alternate air source is simply a required feature on any fuel injected engine. What am I missing? Thanks… Rob

 

[SoCalPlaneDoc]

'bout the only thing is the spring loaded flapper in the cowl inlet. Opens if the filter gets blocked.

they also didn't come with alternate air for the vacuum. Although I never needed one in my entire life, I did add it. High-and-mighty CFII's wont train without one. I added it, then ejected the instructor.

 

[Rob58]

Thanks Bill. If the weather would clean up a bit I hope to make it down your way in my temporary ride (Socata TB-10)... Rob