REFLECTOR: CHT update and sealing up the cabin

[John Dibble]

I sealed my nose doors with silicone and it works good.  I've wondered 
if the car door edge guard would work where the doors come together.

John

On 9/30/2012 6:34 PM, Geoff Gerhardt wrote:
> 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
>
>
>
> _______________________________________________
> To change your email address, visit http://www.tvbf.org/mailman/listinfo/reflector
>
> Visit the gallery!  www.tvbf.org/gallery
> user:pw = tvbf:jamaicangoose
> Check new archives: www.tvbf.org/pipermail
> Check old archives: http://www.tvbf.org/archives/velocity/maillist.html


-------------- next part --------------
An HTML attachment was scrubbed...
URL: <http://www.tvbf.org/mailman/private/reflector/attachments/20120930/724d8b08/attachment.html>