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Date: Wed, 02 Jan 2008 21:09:52 -0700
From: Dale Rogers <dale.r@cox.net>
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To: Rotary motors in aircraft <flyrotary@lancaironline.net>
Subject: Re: [FlyRotary] flooding
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Don,

   How are you doing this?  Writing from 11 days into the future, that is.

Dale R.

On 1/13/2008 20:17 PM,  Don Wallker wrote:
> I made it out to the airport today, soldered up the CAS and installed 
> it.  Before I cranked it over, I put it in mode 8 and fired it off.  
> The usual nice blue sparks.  Then set it to mode 0 and cranked with 
> the plugs out and pumps/inj off.  No spark.  Cranked and looked 
> again.  Every so often there would be a weak spark or 3, but most of 
> the time, nothing.  So little or no spark.  I measured the gap between 
> the CAS and the wheel and I get between .045 and .050  (I don't have 
> the right feeler gauges).  This contrasts with Mark having to move his 
> CAS to .020  to make it work.  The flange that the CAS sets on is part 
> of the cast casing and is machined flat where the CAS is bolted in.  
> It looks like this sould be the correct setting and would never have 
> concidered this to be the problem (still don't know for sure if it is) 
> if Mark hadn't mentioned it.  Have any of you Renesis people run into 
> this?  Some possibilities are that it needs a smaller gap for the 
> EC-2. or that this being a "grey market" engine, they let the builder 
> figure it out the spacing.  It could be something else, but my plan is 
> to grind the flange down to a gap of .020 and try it.  It will be a 
> bitch to get to.  I can add spacers if I need to move it back out.  
> Anyone else have any suggestions as what else might be the problem? 
>  Bill, Tracy and Dennis, did you have this problem with spacing on the 
> Renesis, or did you just install the stock CAS and go?  I checked the 
> factory Manual on CD and they have no specs on the gap.  BTW no RPM 
> display at these low cranking speeds.  Lynn, I am running a stock 13b 
> autotrans starter.  It cranks well, until the battery runs down.  Yes, 
> I have my 12 lb Catto prop installed.  I put a little oil into the 
> plugs holes before cranking. 
> Dennis, I'll put that inverted drain valve at the top of the radiator 
> housing this weekend.  I also have 2 air purge lines, one running from 
> the rear top of the engine and the other from the radiator, radiator 
> cap, both going up to the surge tank to purge air out of the system.  
> Bob, I think your harnesses are fine!  Picked up some Marvel MM oil 
> for squirting into the plug holes.  Bill, I have been cleaning my 
> plugs with carb cleaner, then blowing them dry.  If that doesn't work, 
> I'll use the rice hulls. I will attempt to fire it off once the 
> urathane sets and I get the flange cut down.  Guys, thanks for all the 
> suggestions!  I'll keep you posted.
>  
> Don Walker