Today's Message Index:
----------------------
1. 07:36 AM - Re: AFP Injection and RV-8A (rvg8tor)
2. 11:41 AM - Re: Re: AFP Injection and RV-8A (Terry Watson)
3. 01:06 PM - RV-8A Toe In Progress Report (Robin Marks)
4. 01:27 PM - Re: RV-8A Toe In Progress Report (Larry Bowen)
5. 02:07 PM - Re: RV-8A Toe In Progress Report (Craig Gallenbach)
6. 04:27 PM - Re: AFP Injection and RV-8A (Carl Froehlich)
7. 05:09 PM - Re: AFP Injection and RV-8A (rvg8tor)
8. 05:33 PM - Re: Re: AFP Injection and RV-8A (Carl Froehlich)
Message 1
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| Subject: | Re: AFP Injection and RV-8A |
Terry,
It looks like you came up with the solution I am getting too. I assume you had
the AFP unit sent back to have the mixture control rotation revered to make yours
work. My unit came with the rotation from ICO to Rich being Clockwise and
it needed to be revered to make the control work with where the cable needed
to be located.
Thanks for the pictures. You are the first -8A using both Vert Ind and AFP FI
I have seen.
Cheers
--------
Mike "Nemo" Elliott
RV-8A QB (Fuselage)
Read this topic online here:
http://forums.matronics.com/viewtopic.php?p=342404#342404
Message 2
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| Subject: | Re: AFP Injection and RV-8A |
I don't recall having the mixture control rotation reversed. But then it has
been quite awhile - and maybe I have it backwards!
Terry
-----Original Message-----
From: owner-rv8-list-server@matronics.com
[mailto:owner-rv8-list-server@matronics.com] On Behalf Of rvg8tor
Sent: Wednesday, June 08, 2011 7:34 AM
Subject: RV8-List: Re: AFP Injection and RV-8A
Terry,
It looks like you came up with the solution I am getting too. I assume you
had the AFP unit sent back to have the mixture control rotation revered to
make yours work. My unit came with the rotation from ICO to Rich being
Clockwise and it needed to be revered to make the control work with where
the cable needed to be located.
Thanks for the pictures. You are the first -8A using both Vert Ind and AFP
FI I have seen.
Cheers
--------
Mike "Nemo" Elliott
RV-8A QB (Fuselage)
Read this topic online here:
http://forums.matronics.com/viewtopic.php?p=342404#342404
Message 3
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| Subject: | RV-8A Toe In Progress Report |
Upon further investigation and inquiry our toe in situation is profound. We
pulled off all the items hung on the gear to take accurate measurements. It
turns out there is a 1" over 14" toe in angle/measurement equating to a 4
degree toe in position. Vans calls for no more than 1/2 degree toe
in angle/measurement. As we purchased the 8A kit partially built (on it's
legs) we then assumed the legs were transposed. Upon pulling off one leg to
visualize how it would be reversed we realized that swapping the legs would
place the wheels at extreme angles so that was not a possibility. After
speaking to Vans (prior to pulling the gear leg) they told us the 7A, 8A &
9A legs are definitely different in geometry. The only thing I can think of
at this point is that we have the wrong gear legs for our model. I do not
like the idea of re-drilling the gear legs because of how difficult they are
to drill and because the offset to the current hole would only be 4 degrees
making for an even more challenging machining exercise. We will be calling
Vans again later today to discuss.
Photos attached...
Robin
Message 4
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| Subject: | Re: RV-8A Toe In Progress Report |
I built an 8 before and am working on a 7 now. I noticed the same thing
when I put the 7 on it's gear a couple months ago. I concluded it was just
the nature of the wittman style gear. As they take loads from 0 to 2000+
pounds, they sweep out and back. Staying aligned during this range of
operation is impossible. The bar-type gear on the 8 only flexes out --
making alignment more reasonable.
--
Larry Bowen
Larry@BowenAero.com
http://BowenAero.com
On Wed, Jun 8, 2011 at 4:03 PM, Robin Marks <robin@painttheweb.com> wrote:
> Upon further investigation and inquiry our toe in situation is profound. We
> pulled off all the items hung on the gear to take accurate measurements. It
> turns out there is a 1" over 14" toe in angle/measurement equating to a 4
> degree toe in position. Vans calls for no more than 1/2 degree toe
> in angle/measurement. As we purchased the 8A kit partially built (on it's
> legs) we then assumed the legs were transposed. Upon pulling off one leg to
> visualize how it would be reversed we realized that swapping the legs would
> place the wheels at extreme angles so that was not a possibility. After
> speaking to Vans (prior to pulling the gear leg) they told us the 7A, 8A &
> 9A legs are definitely different in geometry. The only thing I can think of
> at this point is that we have the wrong gear legs for our model. I do not
> like the idea of re-drilling the gear legs because of how difficult they are
> to drill and because the offset to the current hole would only be 4 degrees
> making for an even more challenging machining exercise. We will be calling
> Vans again later today to discuss.
>
> Photos attached...
> Robin
>
>
Message 5
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| Subject: | Re: RV-8A Toe In Progress Report |
I've concluded its the nature of the design and there is no practical way t
o adjust it.- I have not measured toe-in on my 8A (quick build), but I do
know it is there.
-
My plane tracks well, but I do see much-more tire wear than I would expec
t.- I watch tire wear closely, rotate tires as needed, and just figure on
buying more tires than other aircraft I've owned in the past.
-
Craig Gallenbach
Eastover, NC
RV8A N184CG- 190 hours
--- On Wed, 6/8/11, Robin Marks <robin@PaintTheWeb.com> wrote:
From: Robin Marks <robin@PaintTheWeb.com>
Subject: RV8-List: RV-8A Toe In Progress Report
Upon further investigation and inquiry our toe in situation is profound. We
pulled off all the items hung on the gear to take accurate measurements. I
t turns out there is a 1" over 14" toe in angle/measurement equating to a 4
degree toe in position. Vans calls for no more than 1/2 degree toe in-an
gle/measurement. As we purchased the 8A kit partially built (on it's legs)
we then assumed the legs were transposed. Upon pulling off one leg to visua
lize how it-would-be reversed we realized that swapping the legs would
place the wheels at extreme angles so that was not a-possibility. After s
peaking to Vans (prior to pulling the gear leg) they told us the 7A, 8A & 9
A legs are-definitely-different in geometry. The only thing I can think
of at this point is that we have the wrong gear legs for our model.-I do
not like the idea of re-drilling the gear legs because of how difficult th
ey are to drill and-because-the offset to the current hole-would-on
ly
be 4 degrees making for an even more challenging machining exercise.-We
will be calling Vans again later today to discuss.-
Photos attached...
Robin
-
Message 6
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| Subject: | AFP Injection and RV-8A |
My install is very similar to Terry's, except my mixture line is more
vertical. I fabricated the brackets in place and remember I had to use a
couple of pieces of angle riveted together to get the right setup on the
mixture. I was able to use the control cable length by Van's. I also
remember having a nice pile of aluminum scraps and dust from various trials
and errors. You can use some light aluminum sheet to mock up the brackets,
then fabricate from few pieces of 1/8" x 2" x 2" or so angle. Don't worry
about the big size as you will trim off the excess anyway.
Carl Froehlich
RV-8A (650 hrs)
RV-10 (almost ready for fuselage paint)
-----Original Message-----
From: owner-rv8-list-server@matronics.com
[mailto:owner-rv8-list-server@matronics.com] On Behalf Of Terry Watson
Sent: Wednesday, June 08, 2011 12:03 AM
Subject: RE: RV8-List: AFP Injection and RV-8A
Here us a link to some photos of what I did a few years ago for that same
combination. I seems to work pretty well, but then again it has never been
in the air either: http://tcwatson.zenfolio.com/p288537335
Terry
RV-8A project - stalled
Seattle
-----Original Message-----
From: owner-rv8-list-server@matronics.com
[mailto:owner-rv8-list-server@matronics.com] On Behalf Of rvg8tor
Sent: Tuesday, June 07, 2011 8:32 PM
Subject: RV8-List: AFP Injection and RV-8A
I am trying to sort out my mixture and throttle cables. If you have a RV-8A
(nose gear) and Air Flow Performance fuel injection, that is vertical
induction please message me.
The exhaust hangers (Vetterman cross over) and the supports of the engine
mount make this a very troublesome puzzle.
Thanks in advance.
Cheers
--------
Mike "Nemo" Elliott
RV-8A QB (Fuselage)
Read this topic online here:
http://forums.matronics.com/viewtopic.php?p=342377#342377
Message 7
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| Subject: | Re: AFP Injection and RV-8A |
Carl & Terry,
Thanks for the inputs, it is alway nice to know you are on the right track. In
the photo you can see prototype #1. I basically went the straight route, this
seems to give the best clearance between the exhaust and the mount support.
I will put a heat shield on the exhaust and will watch closely, I am a little
worried since I don't know how much the engine moves in this area, finding the
right clearance seem to be a little of a crap shoot.
Cheers
--------
Mike "Nemo" Elliott
RV-8A QB (Engine)
www.mykitlog.com/rvg8tor
Read this topic online here:
http://forums.matronics.com/viewtopic.php?p=342459#342459
Message 8
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| Subject: | Re: AFP Injection and RV-8A |
Nice work.
I think I was one of the few people to do the AFP/vertical draft/RV-8A
install - killing four or five weekends in the process.
As I mentioned I ran the mixture cable more vertical, on the inside of the
interfering engine mount pipe (you have yours on the outside). This kept it
away from the exhaust and I didn't need to use the spacer at the end of the
control cable like you have. This did require re-clocking the AFT throttle
body mixture control arm. Just a different way to do it.
Carl
-----Original Message-----
From: owner-rv8-list-server@matronics.com
[mailto:owner-rv8-list-server@matronics.com] On Behalf Of rvg8tor
Sent: Wednesday, June 08, 2011 8:07 PM
Subject: RV8-List: Re: AFP Injection and RV-8A
Carl & Terry,
Thanks for the inputs, it is alway nice to know you are on the right track.
In the photo you can see prototype #1. I basically went the straight route,
this seems to give the best clearance between the exhaust and the mount
support. I will put a heat shield on the exhaust and will watch closely, I
am a little worried since I don't know how much the engine moves in this
area, finding the right clearance seem to be a little of a crap shoot.
Cheers
--------
Mike "Nemo" Elliott
RV-8A QB (Engine)
www.mykitlog.com/rvg8tor
Read this topic online here:
http://forums.matronics.com/viewtopic.php?p=342459#342459
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