Today's Message Index:
----------------------
1. 06:40 AM - RV 8 Gear Towers (ed clegg)
2. 10:12 AM - Re: RV 8 Gear Towers (owner-rv7-list-server@matronics.com)
3. 11:30 AM - Roller tappets - another ~ - OUCH !! (Gerry Filby)
4. 03:34 PM - SEC: UNCLASSIFIED Re: Roller tappets - another ~ - OUCH !! (Francis, David CMDR)
Message 1
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| Subject: | RV 8 Gear Towers |
--> RV7-List message posted by: "ed clegg" <edwclg@adelphia.net>
There has been some discussion relating to opening the towers for better
access.
What I would like is those that have and are flying to let us know how they
are holding up.
Also is there any engineering out there on the pros and cons.
I am thinking of this but still up in the air. I have had mixed opinions
from good sources.
Thanks,
Ed Clegg
Message 2
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| Subject: | RV 8 Gear Towers |
--> RV7-List message posted by:
Vans has indicated that the rivets which hold the 802C to the angles could
be replaced with #8 screws. I consequently went ahead and cut 802C cross
wise above the WD821 weldment and two rivet holes below the top lightening
hole. I also put two stout doubler plates to effect the junction. The
doubler plates are riveted into the removable part of 802C and screwed via
#8s into the top and bottom part of 802C. Have not flown yet so can't
report but if anyone is interested I can send pictures.
Michele Delsol
RV8 Fuselage
> -----Original Message-----
> From: owner-rv7-list-server@matronics.com [mailto:owner-rv7-list-
> server@matronics.com] On Behalf Of ed clegg
> Sent: Tuesday, August 16, 2005 3:39 PM
> To: rv7-list@matronics.com; RV-8@yahoogroups.com
> Subject: RV7-List: RV 8 Gear Towers
>
> --> RV7-List message posted by: "ed clegg" <edwclg@adelphia.net>
>
> There has been some discussion relating to opening the towers for better
> access.
> What I would like is those that have and are flying to let us know how
> they
> are holding up.
> Also is there any engineering out there on the pros and cons.
> I am thinking of this but still up in the air. I have had mixed opinions
> from good sources.
> Thanks,
> Ed Clegg
>
>
>
>
>
Message 3
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| Subject: | Roller tappets - another ~ - OUCH !! |
0.25 HELO_DYNAMIC_DHCP Relay HELO'd using suspicious hostname (DHCP)
0.74 HELO_DYNAMIC_HCC Relay HELO'd using suspicious hostname (HCC)
1.40 HELO_DYNAMIC_IPADDR Relay HELO'd using suspicious hostname (IP
addr 1)
--> RV7-List message posted by: Gerry Filby <gerf@gerf.com>
Folks,
Looks like adding the roller tappet option to your 320 or 360
is going to add another $3-4000 to the price (that's Aerosport's
current estimate).
I've been hunting around and haven't found much discussion on
the upgrade apart from various announcements from Delphi and
Lycoming. This "new technology" solves premature wear and
corrosion only ? They also enable alternate cam profiles ? (Not
likely for this first timer.)
Is it worth it ?
If the subject's been beaten to death already I'd happily take
a link to some reference ...
__g__
==========================================================
Gerry Filby gerf@gerf.com
Tel: 415 203 9177
Message 4
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| Subject: | Roller tappets - another ~ - OUCH !! |
--> RV7-List message posted by: "Francis, David CMDR" <David.Francis@defence.gov.au>
Gerry,
As I understand it galled tappets are expensive to repair, probably more than the
cost of the installation of roller tappets. But the writings I have seen indicate
that galled tappets is most common in aircraft that fly infrequently.
If you fly a minimum of 30 minutes per week every week you will probably be safe.
The 30 minute figure is driven by a separate issue. It generally takes a bit
under 30 minutes of operation at normal temperatures to drive all moisture out
of the lubrication oil, and that prevents internal engine corrosion.
I fly a Pawnee glider tug that flies only on weekends, 1-3 hrs per week, since
1982, and its never had a galling problem.
Regards, David Francis, Canberra, Australia
-----Original Message-----
From: owner-rv7-list-server@matronics.com
[mailto:owner-rv7-list-server@matronics.com]
Subject: RV7-List: Roller tappets - another ~ - OUCH !!
--> RV7-List message posted by: Gerry Filby <gerf@gerf.com>
Folks,
Looks like adding the roller tappet option to your 320 or 360
is going to add another $3-4000 to the price (that's Aerosport's
current estimate).
I've been hunting around and haven't found much discussion on
the upgrade apart from various announcements from Delphi and
Lycoming. This "new technology" solves premature wear and
corrosion only ? They also enable alternate cam profiles ? (Not
likely for this first timer.)
Is it worth it ?
If the subject's been beaten to death already I'd happily take
a link to some reference ...
__g__
==========================================================
Gerry Filby gerf@gerf.com
Tel: 415 203 9177
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