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Jab 3300 cowl install on a 601XL

 
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rsq2424(at)yahoo.com
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PostPosted: Mon Feb 13, 2006 4:00 pm    Post subject: Jab 3300 cowl install on a 601XL Reply with quote

To install the cowl on a 601XL, the Jab instructions say to fabricate a 9" wood "donut", then cut it in half, and attach one half to the lower cowl at the front, and the other on the upper cowl. Presumably, this is to allow it to be alinged on the prop shaft extension. However:

1. Where exactly on the cowls do each of the donut halves attach? Seems to be that if or both halves is off center (up, down, or sideways), even a little bit, that would throw everything off and defeat the purpose of the donut to begin with.

2. The front of both cowl pieces is flat, but doesn't have a cutout for the prop spinner. This cutout would need to be made prior to using the donut technique, but how do you know exactly where to place the hole, and how large? And if you have to cut the hole ahead of time, wouldn't that serve the same purpose of the donut?

Overall, I'm foggy on the whole process even after studying the instructions, so if someone else has already been there, I would love to hear from them. Also, the folks at Jab are also welcome to chime in, as your answer to this post in the archives could be helpful to someone else in the future.

Mike F.
601XL Jab 3300


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JAPhillipsGA(at)aol.com
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PostPosted: Mon Feb 13, 2006 8:36 pm    Post subject: Jab 3300 cowl install on a 601XL Reply with quote

Mike, it's been a year or so, but I recall once I duct taped the wood circle
to the cowl where the rear of the spinner cone would go I drilled two holes
through the wood through the fiberglass of the bottom cowl and attached with
small dome head bolts and nuts. After fitting all together and removing I used
fiberglass resin and some cloth on the inside to cover the holes. Been a while
ago so my memory is fading. Best of luck, Bill N505WP 601XL-3300


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