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After seeing several posts, it sounds like the horizontal wire on one side
was engaging only half of the hinge. If so the advice you're getting is
correct. Try inserting the pin just a couple of inches and then try to pull
the front of the cowl apart on that side with a few pounds of pressure. Does
the line between upper and lower cowl open up or do they feel locked
together. If they move, then you missed the tabs of the second half of
hinge. John Barrett -----Original Message-----
From: Lancair Mailing List [mailto:lml@lancaironline.net] On Behalf Of
Robert R Pastusek
Sent: Saturday, September 24, 2011 6:05 PM
To: lml@lancaironline.net
Subject: [LML] Re: Piano hinges and checking if....
Ron wrote:
Today on my flight to Sebastian/FL I noticed on landing that the wire that
suppose to go through the piano hinges (cowling) was sticking out on the
side (not a pretty sight)
So I pulled it out and pushed it in again, it looked good to me, and the
cowling seemed ok, but when I can back home it as sticking out.....again :(
So is there any trick I can use ? (it did not do any damage and the wire was
just hanging out at the side.
Ron, This is most often caused by the cowling halves and/or fuselage join not
being correctly mated before inserting the hinge wire. (You didn't say where
specifically you were having trouble; some used this only for joining the
top and bottom; some used it in other areas.) It's important that you
trouble shoot this and correct ASAP, as the cowling could easily fail and
cause loss of the aircraft.
I can't offer much advice if the problem is with the cowl/fuselage joint as
these are all different, but the top/bottom cowl joint is easier to
troubleshoot, especially if the hinge wire enters from the front of the
engine (the most common configuration).
If this is the situation you have, try re-mating the cowling halves with the
pin removed. Then carefully insert the pin an inch or so into the joint, and
look inside the air inlet hole to see where it's going. You may have to
(carefully) push aside some of the baffling to do this. The trick is to make
sure the hinge halves are correctly mated before starting in with the wire.
Once you get the wire through the first top and bottom pivots, it's
impossible to insert it any more into the hinge joint until they are
correctly mated--and aligned--unless one of the hinge parts itself is
broken.
So conduct a good inspection of the area to figure out whether it's a broken
hinge part or a mating issue and work from there.
Glad to talk to you off-line if you want to give a call.
Good luck; this should be trivial to correct once you figure out what's
causing the alignment problem.
Bob Pastusek
703-271-8008
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