Jon,
I have replaced these where the client felt they were too stiff and either
put polishing compound on them or actually machined them larger.
As far as slop, a slight clunk of the stab up and down, for and aft won=92t
hurt anything especially if it a small .005 inch play.
Force in some grease rather than oil if you can=92t stand the noise. Pack
the grease in using your fingers and a lot of pressure normally once a year
and it will be fine.
To replace them just requires disassembly of the tail plane torque tube. (
I hope you made your inspection hole larger.) I have had to pull a couple
of them out, an 8 hour day is normal. One had only the sight hole to inspe
ct, I put a six inch hole in the back to get my arm in there and patched th
e fuselage. It was the only way to stay sane.
Bud Yerly
Custom Flight Creations
Sent from Mail<https://go.microsoft.com/fwlink/?LinkId=550986> for Window
s 10
________________________________
From: owner-europa-list-server@matronics.com <owner-europa-list-server@matr
onics.com> on behalf of JonathanMilbank <jdmilbank@yahoo.co.uk>
Sent: Sunday, September 30, 2018 4:08:47 PM
Subject: Europa-List: Re: Vertical play at stabilator tips
>
At the risk of being shot down in flames (yet again), this is a subject whi
ch is quite dear to my heart. I've asked a few people over the years the sa
me question and never been given a definitive answer. I doubt very much tha
t there's anyone at Europa who could either. What I do know is that the lat
e Nev Eyre replaced the bronze bushes for at least one of his customers, bu
t seemingly only because they wanted it done and not because he thought it
was really necessary. That's the impression he gave me anyway.
Either you belong to the school of opinion that even slight play is unaccep
table, or you take the pragmatic view of considering whether the play is li
kely to cause a problem. I fall in with the latter and have no reason to be
lieve that even a mm of play in the bush would cause flutter or any other u
ndesirable effect. One of my bushes has about .015" of movement and the oth
er is probably double that. The airframe has around 1200 hours and I've bee
n aware of play for several years.
In order to keep those bushes lubricated, I have a plastic syringe drilled
out to accept a very thin plastic tube of the type which inserts into the n
ozzle of an ACF 50 spray can. I load the syringe with a little clean engine
oil and using a torch, I insert the tube through the narrow gap at the roo
t of each tail plane. The oil flows around and down the metal sleeve which
passes through each bush and then wicks sideways into the gap.
This I do every few flying hours and it avoids the need to unpin and slide
each tail plane sideways. For the past couple of years there has been no di
scernible increase in wear of the bushes.
Read this topic online here:
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