C90-14F carb-airbox studs

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6643
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Re: C90-14F carb-airbox studs

Post by 6643 »

8413 wrote: Sun Mar 15, 2026 11:00 amWhat's that saying?....good things come to those who wait.
Bad things come in threes? (The 2 year overhaul, the studs, and now the runway closure...)

The studs should fit tight enough that they don't unscrew when you take the nuts off. They don't necessarily need to be oversized; standard size studs should fit that way when everything is new.
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8413
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Re: C90-14F carb-airbox studs

Post by 8413 »

6643 wrote: Sun Mar 15, 2026 1:27 pm
8413 wrote: Sun Mar 15, 2026 11:00 amWhat's that saying?....good things come to those who wait.
Bad things come in threes? (The 2 year overhaul, the studs, and now the runway closure...)

The studs should fit tight enough that they don't unscrew when you take the nuts off. They don't necessarily need to be oversized; standard size studs should fit that way when everything is new.
Thank you John.
Josh
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Re: C90-14F carb-airbox studs

Post by 6183 »

Josh,
I can understand, the cost of those studs are way overpriced.

Mike
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Re: C90-14F carb-airbox studs

Post by 8281 »

If it was mine, I would de-grease the threads
and use a drop of Blue Loctite!
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8413
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Re: C90-14F carb-airbox studs

Post by 8413 »

I learned that the nuts that hold the airbox on are supposed to be castle nuts. So, even if the studs are not tight in the carb body, the safety wire thru the castle nuts will keep everything together. The studs are drilled for the castle nuts. My engine had nylock nuts before I sent it in for OH. I think this may have been to make removal of the airbox easier (at annual) since my carb had the 2-piece venturi that needed inspection. Now that my carb has the latest 1-piece venturi, I don't think we will need to remove the airbox every year any more. So the extra work of safety wiring the 4 castle nuts will hopefully be a one time thing.
Josh
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