Today's Message Index:
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1. 08:53 PM - Bolt Hole Clearance - Elevator Horn (Garey Wittich)
2. 10:15 PM - Re: Bolt Hole Clearance - Elevator Horn (Joseph F. Giallo, II)
Message 1
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| Subject: | Bolt Hole Clearance - Elevator Horn |
REF: -Regarding the 1/4 inch bolt holes in the Elevator Control Horns, ab
out which the Left & Right Elevator Horns rotate on the center Hinge Bearin
g fastened to the center of the Horiz Stabilizer.
After drilling these 1/4 inch diameter holes (for the AN4 Bolt), these hole
s are too close to the weld fillet that welds the torque tube to the perpen
dicular part of the Horn. -The weld fillets on my L & R Horns go ALL the
way around the Tube. Thus the AN4 Bolt HEAD and corresponding Nut HEAD will
come in contact with the "weld fillet" BEFORE they are tightened. --
- After reading the "Archieves" for possible solutions and some of my own
thoughts it seems the options are (looking for the BEST Option):
1) Die Grind the weld fillet in the area where the Bolt and Nut heads will
be, then spot prime with Zinc Chromate.
2) -Grind the weld fillet where the Nut Head will be and then use a reduc
ed size Nut (MS21042-4) that has a smaller diameter than the -one supplie
d by Vans.
3) -Use regular AN960 Washers and "contour them" to fit over the weld fil
let so Bolt Head and Nut fit snug against them. -(Will need a longer Bolt
than supplied by Vans.)
4) -Make a "thick" washer out of stainless steel (i.e. 1/8" thick) and "c
ontour it" to fit over the weld fillets; thus the Bolt and Nut heads have a
flat surface to tighten against. -Again a longer Bolt will be required.
-<----- Seems the BEST approach to me. - Any subtle issues involved ???
How did YOU handle this situation ???????
Appreciate your comments !!!
Thanks, - Garey Wittich - Santa Monica, CA=0A=0A=0A
Message 2
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| Subject: | Re: Bolt Hole Clearance - Elevator Horn |
Garey,
I think I would go with either 3 or 4 although I confess that I don't
think I had this issue. Not to worry though, the rumor that Van's has
actually produced two identical kits has never been proven.....
Regards,
Joe
N813MJ
60+hrs
Garey Wittich wrote:
> REF: Regarding the 1/4 inch bolt holes in the Elevator Control Horns,
> about which the Left & Right Elevator Horns rotate on the center Hinge
> Bearing fastened to the center of the Horiz Stabilizer.
>
> After drilling these 1/4 inch diameter holes (for the AN4 Bolt), these
> holes are too close to the weld fillet that welds the torque tube to
> the perpendicular part of the Horn. The weld fillets on my L & R
> Horns go ALL the way around the Tube. Thus the AN4 Bolt HEAD and
> corresponding Nut HEAD will come in contact with the "weld fillet"
> BEFORE they are tightened.
>
> After reading the "Archieves" for possible solutions and some of my
> own thoughts it seems the options are (looking for the BEST Option):
>
> 1) Die Grind the weld fillet in the area where the Bolt and Nut heads
> will be, then spot prime with Zinc Chromate.
>
> 2) Grind the weld fillet where the Nut Head will be and then use a
> reduced size Nut (MS21042-4) that has a smaller diameter than the one
> supplied by Vans.
>
> 3) Use regular AN960 Washers and "contour them" to fit over the weld
> fillet so Bolt Head and Nut fit snug against them. (Will need a
> longer Bolt than supplied by Vans.)
>
> 4) Make a "thick" washer out of stainless steel (i.e. 1/8" thick) and
> "contour it" to fit over the weld fillets; thus the Bolt and Nut heads
> have a flat surface to tighten against. Again a longer Bolt will be
> required. <----- Seems the BEST approach to me. Any subtle issues
> involved ???
>
> How did YOU handle this situation ???????
>
> Appreciate your comments !!!
>
> Thanks, Garey Wittich Santa Monica, CA
>
>
>*
>
>
>*
>
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