REFLECTOR: CHT update and sealing up the cabin

Geoff Gerhardt geoff.gerhardt at gmail.com
Thu Oct 4 06:13:34 CDT 2012


Reiff,

That sounds like a good idea.  Another Velocity owner suggested these
rubber bellows from Midwest Control.  I've order a pair and I'll give them
a try.

http://www.midwestcontrol.com/part.php?id=5989

Geoff

On Wed, Oct 3, 2012 at 11:21 PM, Reiff Lorenz <Reiff at lorenz.com> wrote:

> >> Also, does anyone know of any rubber bellows to use on the rudder
> pedal connections to the bell crank?  <<****
>
> ** **
>
> Geoff,****
>
> ** **
>
> If you have the upgraded pedals, the factory sells a composite cover for
> the rudder-pedal interconnect bell crank. It doesn't seal the holes in the
> canard bulkhead, it covers the entire bell crank area so cold air can't get
> to the holes. ****
>
> ** **
>
> It didn't come with my brake upgrade kit, but I picked one up when I was
> in Sebastian in February. It also wouldn't be too hard to make one from
> scratch.****
>
> ** **
>
> ** **
>
> *Reiff Lorenz, Dayton, OH*
>
> Velocity XL-RG, 37% complete****
>
> Currently working on: Installing 3 more Corbeau A4 seats****
>
> ** **
>
> ** **
>
> *The Velocity Builders' Virtual Hangar is available 24/7 at:*
>
> *
> https://liveconferencepro.com/guest/loginguest.php?id=86a48563bb517ade0abf1a7ee1f38e65
> *
>
> ****
>
> ** **
>
> ** **
>
> ** **
>
> *From:* reflector-bounces at tvbf.org [mailto:reflector-bounces at tvbf.org] *On
> Behalf Of *Geoff Gerhardt
> *Sent:* Sunday, September 30, 2012 7:35 PM
>
> *To:* Velocity Aircraft Owners and Builders list
> *Subject:* REFLECTOR: CHT update and sealing up the cabin****
>
> ** **
>
> Guys,****
>
> ** **
>
> So, I've finally cooled down my hot #3 cylinder.  It had been going up to
> +430F on climb out.  Some rather aggressive mods to the intake plenum got
> it down to 420F max so I turned my attention to a combustion problem.  The
> EGT was always higher than the others and it always peaked first (~20deg
> before the others).  So, I removed the injector, ultrasonicated it in
> acetone, twirled a drill bit thru it (#72, I think) as well as cleaned and
> gapped both spark plugs.  Took it out today when there was a break in the
> clouds and did an aggressive climb to 10k' - all CHT and EGT's level.  None
> got above 395F on a full power climb to 10K (it is cool here, tho - ~60F).
>  Once I got to altitude, I was able to go LOP and #3 didn't peak first -
> they all peaked very close to each other.  Nice to have that problem solved.
> ****
>
> ** **
>
> I also piped my oil breather into the exhaust - seemed to work well, no
> more oil streaks.****
>
> ** **
>
> Because its starting to get cool here, I'm thinking about cabin heat.
>  I've been trying to seal up the cabin, but still have lots of drafts.
>  I've sealed the area between the canard and dog house cover.  I'm debating
> whether to try to seal the nose gear doors.  Has anyone found a good
> solution for that?  Also, does anyone know of any rubber bellows to use on
> the rudder pedal connections to the bell crank?  I've been trying to find
> something used in maybe from a master cylinder of a car, or maybe a clutch
> linkage thru the firewall.  If I can't seal up the nose gear doors
> effectively, then I'll have to try to seal up the slot the elevator push
> rod goes thru.****
>
> ** **
>
> Geoff****
>
> ** **
>
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