> Albert Cassar wrote:

> If it is the type that has a red lead that coils around one  of the spark
> plug lead. Then you may wont to try  what a friend of mine did . (He used 
> the
> tiny tac on a Jaberu eng,) when he first put it on it was giving him crazy
> readings so after many attempts to get it right by cutting the length of 
> the
> wire that coils around the spark plug lead ,he ended up with one coil in 
> fact
> it may have been a little less it then was reading just fine.

Thanks.  I've tried all of that, every conbinatioin possible, and eventually 
discovered that shielding the red wire/plug wire junction by either wrapping 
with copper braid (or even aluminum foil) and grounding the shield to the 
engine case makes it work perfectly.  I'm quite happy with the Tiny Tach 
now.  It's the EIS tach function that is totally unreliable.  I'll work with 
them to get something else.  I think somebody said they can use a tooth 
counter too, so I guess that's where I'm headed with that.

Mark Langford, Huntsville, Alabama
see KR2S project N56ML at http://home.hiwaay.net/~langford
email to N56ML "at" hiwaay.net


----- Original Message ----- 
From: <jo...@alphalink.com.au>
To: "KRnet" <kr...@mylist.net>; "KRnet" <kr...@mylist.net>
Cc: "Corvair engines for homebuilt aircraft" <corvaircr...@mylist.net>
Sent: Monday, June 06, 2005 7:48 AM
Subject: Re: KR> over the hump!


>
> HI Mark
> In ref. to the tiny tac.
>
> If it is the type that has a red lead that coils around one  of the spark
> plug lead. Then you may wont to try  what a friend of mine did . (He used 
> the
> tiny tac on a Jaberu eng,) when he first put it on it was giving him crazy
> readings so after many attempts to get it right by cutting the length of 
> the
> wire that coils around the spark plug lead ,he ended up with one coil in 
> fact
> it may have been a little less it then was reading just fine.
>
> Albert Cassar
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>>
>>
>> the airport, because I'd only done two landings by myself up until
>> today, and they were both near-tragedies. I was actually wondering
>> about things the undertaker does to you as I drove out there.  I
>> left the airport today with a huge smile on my face...thinking,
>>  "I've got this licked now".  Thanks to all that've helped,
>>  especially Bill Clapp.  For the first time, I let out a big yell
>> after one particularly squeaky one!  Sorry Jim, I forgot to call you
>> until I was on final the first time around, and it was too late
>> then!  I remembered it all though, and I came dragging in there
>> barely flying, slower each time, but rarely looking at the ASI.
>>
>> The Corvair is running great, without so much as a hiccup so far,
>>  other than the time I pulled the mixture out instead of the
>> throttle, and the prop came to a stop on crosswind!   I now have
>> 28.6 hours on the hour meter, although the engine has more hours
>> than that on it.  I also did a little flying around today and did a
>> 2-way speed check with the GPS, and the result was 173 mph top speed,
>>  but with no spinner, and no wheel fairings, and no aileron or flap
>> gap seals, and the engine will only turn 3200 rpms at that speed.
>> It climbs out at 3080, which is about what it'll do static on the
>> ground.  I definitely have too much pitch from whatever this Sterba
>> prop is (it's labeled 54x66, but I think it's been repitched to a
>> 52x60). That's down in the 110 hp range, so after I get my fairings
>> on, I'll get another prop with less pitch.  Average CHTs were 345F
>> after doing wide open for 15 minutes, oil presure was 45 psi, and
>> oil temp never exceeded 200 degrees F.  The EIS tach function has
>> gone haywire, reading as high as 5500 rpm when I'm doing only 3200
>> rpm (courtesy of the Tiny Tach).
>>
>> I tried to recalibrate my static ports with some .1" thick blocks of
>> aluminum but it was too much.  VSI now reads descending all the time,
>>  airspeed reads low (stall is an indicated 38mph), and altimeter
>> reads low. Static ports are not an exact science, apparently.
>>  Fortunately, Bill has taught me not to care what any of those
>> things read, so I don't care.  If I can fly tomorrow (weather
>> permitting) I'll try something less drastic, like some .062 welding
>> rod behind the ports to see if that's a little closer to what I
>> need.  I'll get there.
>>
>> Bottom line is that I'm no longer afraid of this thing and feel like
>> I'm going to make it as a contributing KR pilot and Corvair tester
>> after all.  I'm with ya...
>>
>> Mark Langford  [13 N56ML flying hours and counting]
>> Huntsville, Alabama
>> see KR2S project N56ML at http://home.hiwaay.net/~langford
>> email to N56ML "at" hiwaay.net
>> --------------------------------------------------------------
>>
>> _______________________________________
>> Search the KRnet Archives at
>> http://www.maddyhome.com/krsrch/index.jsp to UNsubscribe from KRnet,
>> send a message to krnet-le...@mylist.net please see other KRnet info
>> at http://www.krnet.org/info.html
>
>
>
> ___________________________________________________
> Alphalink WebMail - http://webmail.alphalink.com.au
>
>
> _______________________________________
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