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Old 05-24-2006, 11:10 PM   #1 (permalink)
RyanW
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Join Date: Apr 2006
Location: Champaign, IL
Posts: 172
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Help! Cowl Alignment- Yak

As I am working on the GP Yak 54, I am either really dense this evening or this cowl just will not line up with the prop shaft. GP includes a handy little jig that should make this an absolute snap, but the cowl is way off in one of two ways. First- if you have the front of the cowl flush with the mounting ring, which makes the front flange of the cowl perpendicular to the prop shaft (meaning prop is same distance from the cowl through the entire revolution), then it is not centered with the prop shaft when looking at it from the front. This is really funny looking because the spinner is set off to one side- not cool. Second- if you get the cowl centered exactly upon the prop shaft, then it isn't perpendicular to the axis and the prop is close to one side through a revolution and spaced far away from the other side. I know it sounds crazy, but if you have had this problem you would completely understand!

So, I am looking at errors that I have either done with the assembly of the jig or in my failed attempts at putting this thing together. I mean it's so easy a caveman could do it. (sorry Geico dudes!)

If you guys/gals have any pointers, please let me know.
Thanks!
-Ryan
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