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PA30 Fuel Caps

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PA30 Fuel Caps

Postby Frank Brunot » Wed Nov 04, 2015 4:22 pm

Just a curiosity question from an engineer:

Why does a PA30 have two types of fuel caps (one for the Mains, and one for the Aux), when the filler necks on both are identical sizes?

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Re: PA30 Fuel Caps

Postby Pat Elliott » Wed Nov 04, 2015 4:24 pm

Are the Aux caps vented and the mains not?
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Re: PA30 Fuel Caps

Postby Frank Brunot » Sat Nov 07, 2015 10:15 pm

I don't believe either are vented. There are separate vent tubes that protrude under the wing.

Both type of caps are suppose to be air tight, as I'm told.

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Re: PA30 Fuel Caps

Postby Kristin Winter » Sun Nov 08, 2015 4:34 am

They are the same for the aux and the mains and they are not supposed to be vented. If you have a vented one, someone installed Aztec fuel caps instead. I like Webco's PMA caps so would go that route.
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Re: PA30 Fuel Caps

Postby Frank Brunot » Wed Dec 16, 2015 4:05 am

Thanks, Kristin. Four new Webco caps are now on the plane.
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