Received-SPF: pass
 receiver=logan.com; client-ip=74.125.92.27; envelope-from=cozy4pilot@gmail.com
DomainKey-Signature: a=rsa-sha1; c=nofws;
        d=gmail.com; s=gamma;
        h=message-id:date:from:user-agent:mime-version:to:subject:references
         :in-reply-to:content-type:content-transfer-encoding;
        b=YIHDFu5JeNky51FbVvU8SDdcrK9I/dhRaXOWmOLVGGr86JT2broZmSu/fi2Z7XA6wq
         z/0keggeVXEu5QyUSIwn2S0Zuq7a+rRFW0fM10r1W42UMIsHlefagJYPn0B6C/VqHlDH
         cMoTAKxLgwb5mnDtniWwZzSyLTgxO+f+MRwwY=
Message-ID: <4B0AFFBF.6050600@gmail.com>
Date: Mon, 23 Nov 2009 16:33:51 -0500
From: Steve Brooks <cozy4pilot@gmail.com>
User-Agent: Thunderbird 2.0.0.23 (Windows/20090812)
MIME-Version: 1.0
To: Rotary motors in aircraft <flyrotary@lancaironline.net>
Subject: Re: [FlyRotary] Re: No start
References: <list-3986492@logan.com>
In-Reply-To: <list-3986492@logan.com>
Content-Type: text/plain; charset=windows-1252; format=flowed
Content-Transfer-Encoding: 8bit

Al & Mark,
I would say that many people may have their ground to the engine block. 
Mine has been that way since I built the plane, and worked fine for 
three or four years before I started having an issue.

I had to order a couple of new crimp connectors, so that I can make a 
longer ground cable. Hopefully they will arrive before Thanksgiving, so 
that I can get it all hooked up over the long weekend.

Steve Brooks


Al Gietzen wrote:
>
> Steve,
>
> I read your other post on what you discovered regarding your bad 
> ground. I wonder how many of us have our engine grounds tied to a bolt 
> near the front cover or end housing? (Mine does...)
>
> Mark S.
>
> Mine does as well – bolts to the front cover. I have never had a 
> starting issue, but I have followed this discussion with interest 
> because a couple of years ago I did a starting spark check and found 
> the sparks considerably weaker than the mode 8 (or whatever) check. I 
> just assumed it was due to the voltage drawdown when the starter was 
> running. Now it’s worth another look.
>
> I recall giving it some thought when doing the wiring (My EC/EM 
> manuals apparently predated Tracy recommended wiring diagram). I 
> concluded that the various things bolted to the engine, like the 
> manifolds, would provide good conduction paths regardless of the 
> sealing between layers – and the 20B has a couple more layers. Both my 
> intake and exhaust flanges are continuous and connect all the layers, 
> and there are other things making the connection to the front cover, 
> so this would be less of an issue compared to an installation having 
> separate flanges to each housing.
>
> Anyway, Steve; I’m glad you found the problem. And thanks; it’s a help 
> to the rotary community, and again proves the value of a list such as 
> this.
>
> Al G
>