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Date: Fri, 26 Nov 2004 17:25:11 -0500
Subject: Re: [FlyRotary] Great first flight today - but sadly no second
	flight
From: Bulent Aliev <atlasyts@bellsouth.net>
To: Rotary motors in aircraft <flyrotary@lancaironline.net>
Message-ID: <BDCD1777.12511%atlasyts@bellsouth.net>
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On 11/26/04 4:58 PM, "Steve Brooks" <prvt_pilot@yahoo.com> wrote:

> I intended to fly several hours on Friday and
> Saturday, and had a great first flight of about 1/2
> hour.  The OAT was 50 degrees, and the engine
> temperatures were fantastic due to the mods, and the
> cooler temperatures.
> 
> The oil never went above 160, and the coolant never
> went above 180.  the engine was running good (aside
> from one issue), and the plane was flying great.
> 
> When I throttled back, I noticed some roughness in the
> engine, and after fiddling with the mixture a little,
> I realized that I had left the 2nd EFI pump on.  As
> soon as I shut off the 2nd pump, the engine smoothed
> right out, and there were no further issues.
> 
> I tested the two pump issue once on the ground, but at
> low power, it seemed to make no difference.
> 
> I checked the plane over for any oil leaks, parts
> dangling, wings falling off, etc., and all look OK.
> 
> I went to lunch, and got more fuel, so that I could
> fly for at least another hour.
> 
> I fueled up, and taxied out to runway 9 at the far end
> of the airport.  About a 1 mile taxi.  When I got to
> the run-up spot, I went through the check list, and
> went to adjust the mixture to a richer setting for
> takeoff.  When I looked at the air ratio gauge, it was
> off the scale rich, with the mixture knob set at 12
> o'clock.   I ran the mixture all the way CCW to lean,
> and instead of dying, like it usually does, it only
> turned off the top LED on the A/R gauge.
> 
> After going back to the hanger, I discovered that I
> didn't have my fuel pressure gauge with me, but I did
> have a 0-80 lb. sender, that I had planned on
> installing for when I add the EM2 (someday).
> 
> I installed the sender, and turned on the fuel pump.
> It read about 90 ohms.  The sender is a 10-180 ohm
> sender.  If it's linear (don't know that it is), then
> it should be about 45 lbs or so of pressure.  I turned
> the fuel regulator down to 80 ohms, and started it.
> No difference.  After adjusting down about 10 ohms at
> a time, it finally ran better at about 40 ohms.  While
> watching the ohm meter, I kicked on the 2nd fuel pump,
> and the resistance went from 30 ohms to 90 ohms.  Not
> too good.
> 
> Looks like I'm going to need a new fuel regulator.
> 
> The one I have now is a Mallory 3 port (return style),
> but I think that I'll buy something other than
> Mallory, since this one failed so soon.
> 
> Can someone recommend a 3 port regulator that is
> working well for them ?
> 
> I remember reading about this subject a couple of
> months ago, but I'm not at home, and can't find the
> link to the archive search.
> 
> Thanks,
> 
> Steve Brooks (at least my turbo still works)
> Cozy MK IV
> Turbo Rotary
> 

Steve, I have installed one from Aeromotive. Summit racing part# AEI-13109.
They come with 1 year warrant. Check it out. I have no practical experience
with it yet.
Bulent