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Thread: Scott 3200 AN6?

  1. #1
    behindpropellers's Avatar
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    Scott 3200 AN6?

    Hanger neighbor took their 3200 off of their Legend Cub Sport and asked be about the bolt that goes through it into the spring.

    AN 6 bolt is loose in the Scott 3200. Spring has a hole for the AN-6. An-7 fits in the tailwheel correctly.

    Did they loose a bushing?

    Thanks,

    Tim
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  2. #2
    stewartb's Avatar
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    Sounds like it, yes. There's a bushing in that hole in my 3200s.

  3. #3
    G44's Avatar
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    Speaking of this bolt, change it from time to time. I had mine break and I am very gentle with the tail during operations.

    Kurt
    Last edited by G44; 01-11-2022 at 09:14 AM.
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  4. #4
    Crash, Jr.'s Avatar
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    Scott and ABI 3200 heads are milled with an AN8 (1/2" hole) and then get bushed down to 7/16" for most installations. J3's, PA-11's and Taylorcraft have a tailspring with a 3/8" bolt which for me meant I drilled my tailspring out to 7/16". You could possibly have a bushing made to go from 1/2" to 3/8" but that would be a custom job.
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  5. #5
    Steve Pierce's Avatar
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    I would drill out the spring or better yet replace it with a AK Bushwheel spring.
    Steve Pierce

    Everybody is ignorant, only on different subjects.
    Will Rogers
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  6. #6

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    Quote Originally Posted by Crash, Jr. View Post
    Scott and ABI 3200 heads are milled with an AN8 (1/2" hole) and then get bushed down to 7/16" for most installations. J3's, PA-11's and Taylorcraft have a tailspring with a 3/8" bolt which for me meant I drilled my tailspring out to 7/16". You could possibly have a bushing made to go from 1/2" to 3/8" but that would be a custom job.
    Oh! Stuff I did not know! It explains a mod I inherited on my PA-11. Thanks!
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  7. #7
    KJC's Avatar
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    Here’s how not to do it. If your missing the 7/16 bushing, just use a 1/2 bolt and wallow out the spring to make it work. Complete BS job. The bushing is $10. You can see this spring was about 1 landing away from disaster. Click image for larger version. 

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    PA-12 N418BS

  8. #8
    G44's Avatar
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    Quote Originally Posted by KJC View Post
    Here’s how not to do it. If your missing the 7/16 bushing, just use a 1/2 bolt and wallow out the spring to make it work. Complete BS job. The bushing is $10. You can see this spring was about 1 landing away from disaster. Click image for larger version. 

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    Make sure you change that bolt too! I had one fail, not good.

    Kurt

  9. #9
    KJC's Avatar
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    Yes new AN-7 bolt bolt and new Airframes 1 3/4” spring. It’s a good 3 leaf spring and gets rid of the adaptor. Also, make sure to grease between the springs. ( Remember they move.). It will help prevent them from rusting as the paint wears away from use.
    PA-12 N418BS

  10. #10
    Steve Pierce's Avatar
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    It always throws me when people drill them. I keep all the AN7 bolts for single bolt and double bolt tail wheels along with the bushings but not any AN8 bolts.
    Steve Pierce

    Everybody is ignorant, only on different subjects.
    Will Rogers

  11. #11
    KJC's Avatar
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    Yeah I don’t ever recall using AN8 bolts for anything.
    PA-12 N418BS

  12. #12

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    Use a NAS bolt for higher tensile strength. And always carry a spare had mine snap while back taxiing in a reasonably smooth spot simple fatigue brake. Anytime I take the Tailwheel of for a full service ( usually annual ) just replace the bolt and call it a day.

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