Today's Message Index:
----------------------
1. 06:11 AM - roll control tufnol bearings (Rowland Carson)
2. 09:49 AM - Rough River (Fred Klein)
3. 10:45 AM - Re: roll control tufnol bearings ()
4. 11:12 AM - Radio gremlins (David Joyce)
5. 11:12 AM - NSI Prop brushes (Bob Fairall)
6. 11:16 AM - Re: Rough River (JEFF ROBERTS)
7. 11:17 AM - Re: roll control tufnol bearings (Graham Singleton)
8. 11:59 AM - Re: Radio gremlins (nigel charles)
9. 12:04 PM - Re: NSI Prop brushes (Pete Lawless)
10. 12:10 PM - Re: Europa - roll control washers etc. (Rowland Carson)
11. 12:10 PM - Re: roll control tufnol bearings (Rowland Carson)
12. 12:37 PM - Re: Radio gremlins (josok)
13. 12:38 PM - Re: Radio gremlins (Karl Heindl)
14. 01:10 PM - Re: Radio gremlins (Karl Heindl)
15. 01:25 PM - excess volts (peter.rees01@tiscali.co.uk)
Message 1
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Subject: | roll control tufnol bearings |
In connexion with my earlier query about including or not AN960-10L
washers, I've been looking in the archives for postings about the
control system installation, and noticed some recommendations to fit
grease nipples in the Tofnol bearings before assembly to allow later
lubrication with a grease-gun.
Two questions arise from that:
1 - is adding a grease nipple "standard aviation practice" or does it
require a Mod to be raised for a UK build? (I wonder is LAA
Engineering aware of those UK Europas with such grease nipple fitted?)
2 - is there any particular type of grease that should be used, or
any that should definetely be avoided, for the Tufnol-aluminium
interface? I tend to favour a water-resistant and anti-corrosive
grease (from a yacht chandler) for slow-moving things like this on my
trailer and other exposed places and would stick with it unless
advised not to. The Europa manual does advise greasing the non-bonded
parts of the CS02-CS03-CS04 assembly, but makes no stipulation as to
type, so I infer from that it's not critical. However, I'd like to
know if anyone has found otherwise from bitter experience.
regards
Rowland
--
| Rowland Carson LAA #16532 http://home.clara.net/rowil/aviation/
| 1070 hours building Europa #435 G-ROWI e-mail <rowil@clara.net>
Message 2
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Looks like I can join the gang at Rough River...yea! I hope those
flying in will excuse me if I drool on their flying Europas...
Assuming I can get them thru airport security, I'll be bringing a set
of my wing root fairings for show and tell,
Fred
A194
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Message 3
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Subject: | Re: roll control tufnol bearings |
Hi Rowland
"is there any particular type of grease that should be used, or
> any that should definetely be avoided, for the Tufnol-aluminium
> interface?"
My accelerated cockpit module came assembled with a black grease. All was
free when we picked it up. Then when it was about ready to install, it had
a slight binding, not much. Then when ready to install it was questionable
binding, so we bit the bullet and beat the aft bushing out and lapped the
front one with a lap purchased from McMaster Carr. It begins as a lap,
then turns to polish, then disappears. What a pain! Amazing how free the
controls are now! You use pig oil with lap and it makes a mess and took
days and days to complete. If you use a lap that does not disintegrate, it
can embed itself in tufnal and wear on aluminium forever.
Anyway that black grease expanded the Tufnal. I for one would not put any
grease on Tufnal unless you know for sure that the selected grease over
years and years will not expand Tufnal. Not only did the Tufnal expand and
make a smaller ID, it got thicker and was binding in thrust as well!
I have some spray for lubricating aluminium (sliding windows with teflon),
it flashes off quick and leaves some teflon, if you forced me to make a
choice what to lube with, that would be my choice. I took some Tufnal that
I sanded glaze off all sides and measured dimensions with a precision
micrometer, kept spraying for a few months with the aluminium teflon spray
and dimensions were stable.
If cockpit module were installed and bushings expanded, you could probably
lap a better fit in place as I described after a bit of surgery and
repair. You would however make a mess beyond belief!
I saw somewhere someone bonded into the bushings a plastic tube to connect
to an aerosol can.
BE CAREFUL WITH GREASING!
Mine may get a quick spray of the teflon aluminium spray once every few
years.
Ron Parigoris
Message 4
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My nearly new Garmin SL30 which has previously worked fine, today in the air
started refusing to change frequency. It was as though it had decided to
stick to just one working frequency and just one standby. Changing the
standby saw it change back to the starting one over the next second or two.
Changing from the active to the standby was followed by it changing itself
back to the previous active. This is a potential disaster as I am due to fly
off to the Black Sea (fortunately the West bank of it!) on Wednesday, and
the avionics experts at RGV Aviation are off on holiday.
The SL30 is linked to a Blue Mountain Efis to display VORs & glide
slopes, and potentially to share frequencies, but the radio behaved the same
when I switched off the Efis.
Any thoughts would be most welcome
Regards, David Joyce, G-XSDJ
Message 5
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Subject: | NSI Prop brushes |
Can anyone give me a lead on where to buy NSI Aero Products propeller
brushes please, or a suitable alternative?
Thanks,
Bob Fairall, G-BXLK, no. 71
Message 6
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Fred,
I am looking forward to your fairing show & tell. Maybe you will have a
mold we can all steel from you. ;o)
Regards,
Jeff R.
A258 - N128LJ / Gold Rush 140 hours and climbing slowly.
On Aug 15, 2008, at 11:46 AM, Fred Klein wrote:
> Looks like I can join the gang at Rough River...yea! I hope those
> flying in will excuse me if I drool on their flying Europas...
>
> Assuming I can get them thru airport security, I'll be bringing a set
> of my wing root fairings for show and tell,
>
> Fred
> A194
>
> http://www.matronics.com/Navigator?Europa-List
Message 7
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Subject: | Re: roll control tufnol bearings |
Rowland
do not go for an engineering bearing fit with the Tufnol. I once took of
after a cold night (in the hangar) and the weather had warmed up a lot.
The metal parts expanded a lot quicker than the Tufnol did and the
controls were stiff for the first hour or two, then loosened up.
There are two problem points as Ron says, the axial clearance which is
best set up with a tissue paper washer, torn out after cure.
The radial binding is sometimes due to the CS02 fork end not being
coaxial with the torque tube, because of the clearance needed to get the
Redux in. If the Tufnol block is also not coaxial it will bind when the
torque tube rotates.
If you inserted thin wire splines of just the right thickness (1/2 the
clearance, whatever that is, that might work
Graham
rparigor@suffolk.lib.ny.us wrote:
>
> Hi Rowland
> Anyway that black grease expanded the Tufnal. I for one would not put any
> grease on Tufnal unless you know for sure that the selected grease over
> years and years will not expand Tufnal. Not only did the Tufnal expand and
> make a smaller ID, it got thicker and was binding in thrust as well!
>
> If cockpit module were installed and bushings expanded, you could probably
> lap a better fit in place as I described after a bit of surgery and
> repair. You would however make a mess beyond belief!
>
> BE CAREFUL WITH GREASING!
>
> Mine may get a quick spray of the teflon aluminium spray once every few
> years.
>
> Ron Parigoris
Message 8
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If you can use an SL40 in the same rack then you can borrow my radio as
I will be too busy to fly my Europa for the next couple of weeks.
Regards
Nigel Charles
-----Original Message-----
From: owner-europa-list-server@matronics.com
[mailto:owner-europa-list-server@matronics.com] On Behalf Of David Joyce
Sent: 15 August 2008 19:11
Subject: Europa-List: Radio gremlins
<davidjoyce@doctors.org.uk>
My nearly new Garmin SL30 which has previously worked fine, today in the
air
started refusing to change frequency. It was as though it had decided to
stick to just one working frequency and just one standby. Changing the
standby saw it change back to the starting one over the next second or
two.
Changing from the active to the standby was followed by it changing
itself
back to the previous active. This is a potential disaster as I am due to
fly
off to the Black Sea (fortunately the West bank of it!) on Wednesday,
and
the avionics experts at RGV Aviation are off on holiday.
The SL30 is linked to a Blue Mountain Efis to display VORs &
glide
slopes, and potentially to share frequencies, but the radio behaved the
same
when I switched off the Efis.
Any thoughts would be most welcome
Regards, David Joyce, G-XSDJ
Checked by AVG - http://www.avg.com
8/15/2008 5:58 AM
Message 9
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Subject: | NSI Prop brushes |
Hi Bob
Have a look at Maxwell. They bought NSI and have been selling of the CAP140
spares. I got some brushes last year from them they may still have some
left.
They were fine to deal with and accept credit cards.
Regards
Pete
www.maxwellpropulsion.com
-----Original Message-----
From: owner-europa-list-server@matronics.com
[mailto:owner-europa-list-server@matronics.com] On Behalf Of Bob Fairall
Sent: 15 August 2008 19:12
Subject: Europa-List: NSI Prop brushes
<bob.fairall@fairalls.co.uk>
Can anyone give me a lead on where to buy NSI Aero Products propeller
brushes please, or a suitable alternative?
Thanks,
Bob Fairall, G-BXLK, no. 71
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Message 10
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Subject: | Re: Europa - roll control washers etc. |
At 2008-08-15 10:04 -0700 Fred Klein wrote:
>The nature of the interface between the AN bolt heads and the
>bearing surface IMHO warrants the use of the AN960-10L washers
Fred - I agree with your assessment. I think the manual is in error
in omitting them.
Why is it that my technical queries always seem to arise about noon
on a Friday, just after John & Roger have gone off for the weekend?
>As for the greasing of the bearings, I did not have your presence of
>mind to raise the question of what kind of grease to use and used
>regular automotive axle grease. Subsequently I've seen posts which
>purport that such grease soaks into and expands the tufnol to cause
>unstated problems...I hope this does not come back to haunt me
I thought I'd seen something like that, but couldn't dig it out. Hope
we can get to the bottom of it.
Thanks for your message.
regards
Rowland
--
| Rowland Carson LAA #16532 http://home.clara.net/rowil/aviation/
| 1070 hours building Europa #435 G-ROWI e-mail <rowil@clara.net>
Message 11
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Subject: | Re: roll control tufnol bearings |
At 2008-08-15 09:41 -0400 Peter Zutrauen wrote:
>Although I have *no* insight at all, I would wonder if the tufnol
>material would absorb oil/grease and swell.
Pete - thanks for your message. I had the feeling I'd seen a
reference to just such an occurrence a good while back, but I can't
dig it up now.
It seems that the manual is talking about greasing the face of the
Tufnol, which is all smooth resin with no fibres bare, rather than
the bore, which has cut fibres terminating throughout its surface.
Grease or oil might well have the possibility of migrating into those
fibres. The different behaviours of a drop of grease or oil when
wiped against the faces and ends of a piece of Tufnol suggest to me
that some absorption is taking place - the face wipes clean with no
trace left, but the edge remains stained.
I am concerned that fitting and using a grease nipple would increase
the opportunity for absorption, even if it did help with the
lubrication of the bearing faces.
>If you receive or find the answer of tufnol compatible lubrication,
>I'd be grateful if you could pass the info along
I'll post the answer here on the list if I get one by any other route.
regards
Rowland
--
| Rowland Carson LAA #16532 http://home.clara.net/rowil/aviation/
| 1070 hours building Europa #435 G-ROWI e-mail <rowil@clara.net>
Message 12
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Subject: | Re: Radio gremlins |
David,
Looks like a wiring fault. Is it very difficult to remove the connecting wires?
Regards,
Jos
Visit - www.EuropaOwners.org
Message 13
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David=2C
I don't want to ruin your weekend and I hope you find a solution locally. M
y transponder failed last year and had to be shipped to the factory in Oreg
on. They charge a flat rate of $ 400 plus the shipping.
They also provide a 'loaner' foc=2C but again you pay for the courier cost.
Karl
<html><div></div>> From: davidjoyce@doctors.org.uk> To: europa-list@
matronics.com> Subject: Europa-List: Radio gremlins> Date: Fri=2C 15 Aug 20
djoyce@doctors.org.uk>> > My nearly new Garmin SL30 which has previously wo
rked fine=2C today in the air > started refusing to change frequency. It wa
s as though it had decided to > stick to just one working frequency and jus
t one standby. Changing the > standby saw it change back to the starting on
e over the next second or two. > Changing from the active to the standby wa
s followed by it changing itself > back to the previous active. This is a p
otential disaster as I am due to fly > off to the Black Sea (fortunately th
e West bank of it!) on Wednesday=2C and > the avionics experts at RGV Aviat
ion are off on holiday.> The SL30 is linked to a Blue Mountain Efis to disp
lay VORs & glide > slopes=2C and potentially to share frequencies=2C but th
e radio behaved the same > when I switched off the Efis.> Any thoughts woul
========================> >
>
Message 14
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David=2C
I just called Garmin Apollo support to get the phone number for calling fro
m overseas: 503-391-3411.
As they are on Pacific time=2C you may still reach them this afternoon.
Karl
<html><div></div>> From: davidjoyce@doctors.org.uk> To: europa-list@
matronics.com> Subject: Europa-List: Radio gremlins> Date: Fri=2C 15 Aug 20
djoyce@doctors.org.uk>> > My nearly new Garmin SL30 which has previously wo
rked fine=2C today in the air > started refusing to change frequency. It wa
s as though it had decided to > stick to just one working frequency and jus
t one standby. Changing the > standby saw it change back to the starting on
e over the next second or two. > Changing from the active to the standby wa
s followed by it changing itself > back to the previous active. This is a p
otential disaster as I am due to fly > off to the Black Sea (fortunately th
e West bank of it!) on Wednesday=2C and > the avionics experts at RGV Aviat
ion are off on holiday.> The SL30 is linked to a Blue Mountain Efis to disp
lay VORs & glide > slopes=2C and potentially to share frequencies=2C but th
e radio behaved the same > when I switched off the Efis.> Any thoughts woul
========================> >
>
Message 15
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A couple of times, we've noticed that the volt gauge goes into the red
- exceeding 16 volts. Is this a sign that the regulator is on its last
legs? If not, anyone got any other ideas??
Peter
G-MFHI
2 for 1 on ID protection with Tiscali SpyGuard (offer ends 18th August 2008) - http://www.tiscali.co.uk/spyguard
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