Mailing List flyrotary@lancaironline.net Message #15265
From: Bob White <bob@bob-white.com>
Subject: Re: [FlyRotary] Re: stock 4-port exhaust port measurement?
Date: Sat, 15 Jan 2005 20:10:21 -0700
To: Rotary motors in aircraft <flyrotary@lancaironline.net>
On Sat, 15 Jan 2005 19:51:37 -0600
"Russell Duffy" <13brv3@bellsouth.net> wrote:


> Funny, none of those look like exhaust ports to me :-)  

Well color me red.  I guess I will atribute it to poor reading skills.

>  
> For the record, I am trying very hard to resist messing with the ports
> on the RV-3 engine, but I can't promise success :-)

Anyone taking bets?  I'll bet on messing.

>
> But now I have a question.  What are the little holes below the ports?
> There is a round one on the end housings and a square one on the
> center housing.
>
> Well, mine are rectangular on both the front and rear housing, and
> larger but still rectangular on the center housing.  Since my engine
> is in pieces, I can tell you that these holes connect to the round
> holes that are below the exhaust ports.  My guess would be that these
> are channels for exhaust to heat the intake manifold, but I admit that
> I don't really know for sure. I'm sure someone here does though.

The little holes by the exhaust ports just got blocked off with my
exhaust flange so I will assume the intake manifold (still waiting) will
block off the ones by the intake ports.

>
> Cheers,
> Rusty (converting from bent mechanical flap handle to electric flaps)
>


Thanks Rusty,
Bob White

--
http://www.bob-white.com
N93BD - Rotary Powered BD-4 (soon)
Subscribe (FEED) Subscribe (DIGEST) Subscribe (INDEX) Unsubscribe Mail to Listmaster