Mailing List flyrotary@lancaironline.net Message #40902
From: Tracy Crook <tracy@rotaryaviation.com>
Sender: <rwstracy@gmail.com>
Subject: Re: [FlyRotary] Re: Floooooding!
Date: Tue, 1 Jan 2008 21:11:53 -0500
To: Rotary motors in aircraft <flyrotary@lancaironline.net>
Hi Don,
  You have probably tried a lot of things but there really was not a lot to go on in your report other than that the engine was flooded.
 
Here is a list of basic things you should be able to answer when asking for help on engine starting problems.  
 
What did you do in trying to avoid flooding?   What starting proceedure did you use?  Are you getting spark when cranking the engine?  (Diagnostic mode alone can't check the crank sensor path).  What is the gap between sensor and trigger wheel?  You say you installed the injector disable switches -  Did you try using them when attempting to start the engine?  Did you check each individual injector in the injector test mode? (remove connectors, plug in one at a time, listen for clicking).   Is engine turning over the minimum speed for cranking (120 rpm?)  Are you getting good compression?  If so, what is it?   Did you try firing the engine on starting fluid (no fuel pumps on) in order to see if the ignition would fire it?

BTW,   Did to *really* un-pot the crank sensor????  (Don't do that!.)  Or maybe I don't know what you mean by "un-pot".
 
Just one stab-in-the dark observation.  If the only pop you got was when running the ignition diagnostic test, my guess is that you are not getting any spark during cranking. 
 
Tracy Crook

On Jan 12, 2008, at 7:47 PM, Don Wallker wrote:

> The list has been a little quiet lately, so I hope this will liven
> it up a little.  I'm at a loss as to how to get my engine running,
> so hopefully you guys will have the correct answer. Or at least
> move me in the right direction.
>     My renesis RV-8 is complete and I tried starting it 2 weeks ago
> and all I could get it to do is flood.  First a little background
> on the installation.
>     New Renesis, 4 port automatic from Bruce Turrentine.  He does
> nice work!  All Tracy's stuff with all the new upgrades and I have
> installed a floscan fuel flow sensor with the wiring changes
> between the EM-2 and EC-2.  Also have Bob's wiring harnesses to the
> EM-2 and EC-2 and the LS-1 coils.  I have installed the primary/
> secondary injector disable switches and the coil disable. Bob's
> harnesses are the way to go!  I have gone through and checked all
> the wiring with an ohm meter.  Even pulled the crank angle sensor,
> unpotted it and brought it home where the repair dvd is and it
> reads the correct 1193 ohms and there is a change when I move metal
> near it.  The crank pickup wheel can only be mounted one way so
> than can't be the problem.  I have set everything back to the
> original settings on the EM-2.  I have run the new injector test
> (Mode 2) and they click like mad and I can turn them on and off
> with the Inj disable switches.  I have pulled the irridium plugs
> and tested them (mode8) and they fire a bright blue.  Tracy, love
> the test modes!  I have tried all of the ways Tracy says to start
> it and all the ways everyone else on the list does it.  Still
> floods. I am getting very tired of taking the plugs out, cleaning
> with carb cleaner and blowing them out and then cranking the engine
> to purge the fuel.  My neighbors are very good to stand by with
> extingishers and telling me to stop when gas dribles out the exhaust.
>     I have checked my fuel pressure with a seperate gauge, 34 psi
> one pump, 37 with 2.  Using O2 sensor, but of course that does'nt
> kick in until auto-tune.  I have the stock red Renesis injectors in
> the primary ports and the blue in the secondary.  These injectors
> are used, but I had them cleaned and flow checked.  Yes I know that
> the rear rotor, next to the pully is rotor 1 and of course the
> leading and trailing plug hole are marked as are the spark plugs.
> I have triple checked that the manifold lines are run and attached
> from the intake manifold to the EC-2 ports and the one on the EM-2
> is left open, as per the manual.   Tracy says that he has set up
> the EC-2 for the stock Renesis setup. Yes and I try both A and B
> controlers.  No change.
>     The only time I could get the engine to pop, was when it was
> still partly flooded and I hit mode 8 to fire the plugs. One pop.
> This is being done with a fully charged, new Oddyssy battery.   So,
> I am getting spark, fuel (lots) and air.  No way to check the
> timing.  After 2 weeks of this, I am at a loss and could use your
> suggestions.
>
> Don Walker
>


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