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n282rs(at)satx.rr.com
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 Posted: Sun Jan 07, 2007 9:13 am Post subject: canopy crack |
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Stop drill it before it gets any worse. I had a couple of cracks on mine
when I installed it. I used a 1/16" bit to stop drill it at the very end of
the crack. Make sure the bit is dull and go easy on it while drilling. You
almost want to burn the hole through rather than cut it. Then get some
acrylic glue and let it wick through the crack. When you install your
screws, only tighten enough that the finishing washer does not move. Any
more and you will have another crack.
Randy Stout
San Antonio TX
n282rs at satx.rr.com
www.geocities.com/r5t0ut21
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planecrazydld(at)yahoo.co
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| Posted: Sun Jan 07, 2007 10:35 am Post subject: canopy crack |
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Gentlemen;
There is a better way: Use drill bits designed to drill acrylic. Their end geometry is different than "normal" bits.
Randy Stout <n282rs(at)satx.rr.com> wrote:
[quote]--> Zenith-List message posted by: "Randy Stout"
Stop drill it before it gets any worse. I had a couple of cracks on mine
when I installed it. I used a 1/16" bit to stop drill it at the very end of
the crack. Make sure the bit is dull and go easy on it while drilling. You
almost want to burn the hole through rather than cut it. Then get some
acrylic glue and let it wick through the crack. When you install your
screws, only tighten enough that the finishing washer does not move. Any
more and you will have another crack.
Randy Stout
San Antonio TX
n282rs at satx.rr.com
www.geocities.com/r5t0ut21
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bryanmmartin
Joined: 10 Jan 2006
Posts: 1018
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| Posted: Sun Jan 07, 2007 10:35 am Post subject: canopy crack |
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Drill a small hole at the end of the crack to stop it from getting
any longer. Then a little methylene chloride (the main ingredient for
most acrylic glues) applied to the crack with a syringe will fuse the
edges together. Wipe up any excess immediately and try not to
breathe the vapors. Some people have used liquid super-glue with good
results also. If the crack is to be covered up under the flashing,
you may not need the glue.
Check the archives for more suggestions. it has come up many times
before on the list.
On Jan 7, 2007, at 11:44 AM, john butterfield wrote:
| Quote: | i was drilling holes for my canopy and noticed a small
hireline crack coming out of one of them. it is about
one inch long and i am wondering if i should drill a
small hole at the end of it before i use the step
drill to enlarge it for final fitting. is seems that
there is only one and is there anything else i should
do to keep it from getting bigger. how about glue or
some other remedial effort
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Bryan Martin
N61BM, CH 601 XL,
RAM Subaru, Stratus redrive.
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_________________
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Bryan Martin
N61BM, CH 601 XL, Stratus Subaru.
do not archive. |
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daveaustin2(at)can.rogers
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| Posted: Sun Jan 07, 2007 10:38 am Post subject: canopy crack |
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John,
My canopy developed several hairline cracks as you describe. I stop-drilled
each one with a blunt drill and then added a dab of Polyzap. 14 years old
and still flying. They do look a bit ugly though.
Dave Austin 601HDS - 912, Spitfire Mk VIII
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planes_by_ken(at)bellsout
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| Posted: Mon Jan 08, 2007 3:50 pm Post subject: canopy crack |
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Poking a soldering iron with a 1/8" round tip through will work.
Eliminates a chance of further cracking during stop drilling.
Ken Lilja
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