Airforce Texan 457 tuning wheel

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Poke-E

Poke-E

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Sep 18, 2023
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Lake Charles LA
I just received my Texan CF bottle with TX2 valve and want to tune using the tuning wheel on my Texan 457. I see there are 5 marks on the barrel for the wheel. I watched a video with Ton Jones with airforce airguns saying the the max tune is only the second line. I am wondering what are the other 2 lines closer to the end of barrel for?

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im not going to be of much help here but wanted to share some info that may be helpful possibly. Im thinking Mr.Hollowpoint has uploaded some videos on the texan testing some heavy slugs, and he did make mention of that power wheel. I don't have a link to the video but you can probably find it pretty easily. I have an Airforce talonP and it has a power wheel on it as well but it's a very very different setup than what you have. if you have a chronograph you could always test it out and see what happens.
 
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The Archer said:
Did you get your answers yet? If not I can shed light on the purpose of the power wheel and how to tune for both max power and max air efficiency. There is also a little known secret regarding the top hats travel and return bumper that very few seem to know about.

Daniel
Click to expand...

I don't use my Texan much but hell I'd like to know!
 
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OK... First question; Are you aware that the action needs to be open to view the tensioner wheel. The images below are with the action closed and again with it open (see the tensioner wheel). Ignore my marks, just note that the round holes are all the way to the right/towards the chamber. This position places the maximum tension on the hammer spring. This is the place you want to start when tuning. Also, it may be necessary to crank it in like this when running max pressure in your tank. Let me know when you are ready for more info.

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