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Date: Fri, 04 May 2012 08:11:12 -0400
From: John Slade <jslade@canardaviation.com>
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To: Rotary motors in aircraft <flyrotary@lancaironline.net>
Subject: Re: [FlyRotary] At least I didn't....
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Yeah. Murphy [he has agents in most airports] and the hangar gremlins. 
They sneak in at night and move things around on you.

Good find, Ernest. I cut the wires so that they could only fit one way, 
and used different colored wires for leading & trailing.

Your first taxi was much better than mine -throttle got stuck and I 
almost rammed the other plane in the hangar. I had 6 feet of skid marks 
and my wife [who was there for a demo of the engine] had to duck as the 
wing went by...

oops.

On 5/4/2012 7:54 AM, Ernest Christley wrote:
> Cause an interplanetary probe to crash or an airliner to run out of fuel.
>
> You know, one of those stupid mistake caused by incorrect conversions. 
> My conversion trip-up was converting "front rotor" from the car to the 
> airplane (and ignoring the "F" and "R" that I stamped into the rotor 
> housings).
>
> I had fuel.  I had air.  I had spark.  It was just that the spark was 
> going to the wrong rotor.  And I used a timing light to verify that I 
> was getting the spark.  Except I took the timing from the wrong 
> rotor.  I even searched this group and verified that I had the EDIS-4 
> coils wired correctly.  Connectors 1 and 4 go to the front rotor.  
> Given that the front rotor is the one in the front on the airplane, 
> not the car.
>
> Doh!!
>
> Once I switched the plug wires around and cleared the engine (turned 
> it a bit with the fuel pumps and injectors off), the engine kicked off 
> in two blades. Someone has GOT to develop a cure for stupid, or I'm 
> doomed.
>
> Word to the wise.  You've verified fuel, air, and spark, and 
> compression.  The engine's spinning with the starter at around 250rpm, 
> but it just won't kick off.  Every few turns, though, it is like 
> something blocks the engine from turning and it stall for a split 
> second.  Check your spark plug wiring.
>
> Good news:
> - FIRST TAXI !!!  It was only about 3ft, but it is the first time in 
> this ten year project that I've had something to move under its own 
> power!!
>
> - The manifold modification is a success.  I had the secondary 
> injectors spraying backwards, away from the runner, under the theory 
> that it would help the fuel vaporize better.  Wrong.  It just puddled 
> in the manifold.  A little more fiberglass work, and both sets are 
> spraying with the airflow now.  I cut power to the fuel pump and the 
> engine immediately cuts out.  It used to slowly choke down as it was 
> sucking some of the puddled fuel out of the manifold.
>
> - I don't seem to have damaged anything with the backwards plug wires.
>
> - I've got to rework my tune.  Yes, this is a good thing.  The 
> aggressive prop is loading the engine, combined with the fuel actually 
> getting burned AS it is injected and not after it has pooled a while, 
> have combined to throw off the current tune.  Fortunately, this isn't 
> very hard with a running engine.
>
> -FIRST TAXI !!  I'm juiced.  You guys that are flying better watch 
> your six.  I'm a comin'.
>
> -- 
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