Europa-List Digest Archive

Fri 08/15/08


Total Messages Posted: 15



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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    Time: 06:11:41 AM PST US
    From: Rowland Carson <rowil@clara.net>
    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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    Time: 09:49:09 AM PST US
    Subject: Rough River
    From: Fred Klein <fklein@orcasonline.com>
    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 -- This message has been scanned for viruses and dangerous content by MailScanner, and is believed to be clean.


    Message 3


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    Time: 10:45:57 AM PST US
    Subject: Re: roll control tufnol bearings
    From: <rparigor@suffolk.lib.ny.us>
    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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    Time: 11:12:21 AM PST US
    From: "David Joyce" <davidjoyce@doctors.org.uk>
    Subject: Radio gremlins
    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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    Time: 11:12:24 AM PST US
    From: "Bob Fairall" <bob.fairall@fairalls.co.uk>
    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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    Time: 11:16:23 AM PST US
    From: JEFF ROBERTS <jeff@rmmm.net>
    Subject: Re: Rough River
    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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    Time: 11:17:33 AM PST US
    From: Graham Singleton <grahamsingleton@btinternet.com>
    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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    Time: 11:59:27 AM PST US
    From: "nigel charles" <nwcmc@tiscali.co.uk>
    Subject: Radio gremlins
    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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    Time: 12:04:59 PM PST US
    From: "Pete Lawless" <pete@lawless.info>
    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 -- This message has been scanned for viruses and dangerous content by Houxou, and is believed to be clean.


    Message 10


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    Time: 12:10:36 PM PST US
    From: Rowland Carson <rowil@clara.net>
    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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    Time: 12:10:36 PM PST US
    From: Rowland Carson <rowil@clara.net>
    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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    Time: 12:37:09 PM PST US
    Subject: Re: Radio gremlins
    From: "josok" <josok-e@ukolo.fi>
    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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    Time: 12:38:03 PM PST US
    From: Karl Heindl <kheindl@msn.com>
    Subject: Radio gremlins
    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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    Time: 01:10:18 PM PST US
    From: Karl Heindl <kheindl@msn.com>
    Subject: Radio gremlins
    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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    Time: 01:25:11 PM PST US
    From: "peter.rees01@tiscali.co.uk" <peter.rees01@tiscali.co.uk>
    Subject: excess volts
    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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