X-Virus-Scanned: clean according to Sophos on Logan.com From: "James Osborn" Received: from mail-ob0-f171.google.com ([209.85.214.171] verified) by logan.com (CommuniGate Pro SMTP 6.1.8) with ESMTPS id 8365801 for flyrotary@lancaironline.net; Fri, 29 Jan 2016 13:10:48 -0500 Received-SPF: pass receiver=logan.com; client-ip=209.85.214.171; envelope-from=rxcited@gmail.com Received: by mail-ob0-f171.google.com with SMTP id wb13so36788001obb.1 for ; Fri, 29 Jan 2016 10:10:47 -0800 (PST) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=gmail.com; s=20120113; h=mime-version:in-reply-to:references:date:message-id:subject:from:to :content-type; bh=2/JyM7dGZmh3mVM0tf/DJL9L40Q7xExXITdL7jIex5I=; b=D+vwhFUZhXY12J3kYXqWPh/xcKOcMcri0EXmCQajuaYNqZyNBNP/dpqAc3J10eonQe yj5qgSMDGYemPMVf7/dfS3llveVYhTmDccgrLfeDv35P0w2O8DYh0iWADYRwORzWvtvV ZX/aVKpmttXQ5VCTU4LNtgx+gZufEIxTry6S+Y1EesJ/CITcQV8ubuzAEuoTn+TY8P6n ouh4ov1zW5JzpykQmNtu09FCaZqEBAuGdTZPQhZ9ZARwrRL1I8ZGRZ1LMjqXl+JLgPre HwpmjeuAJT1JbWnY4D0+m0r5v4o9SUV7TWI76dcQ2UD8P16g9NW8JCHB8yFZwK+wEDp8 Z4cg== X-Google-DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=1e100.net; s=20130820; h=x-gm-message-state:mime-version:in-reply-to:references:date :message-id:subject:from:to:content-type; bh=2/JyM7dGZmh3mVM0tf/DJL9L40Q7xExXITdL7jIex5I=; b=B8G44npqB+gnxfW00+uRJz7kgebqiDkl2tOmIdfHCecztUFEglzj0s9y/4cPwpuqCW rSuQ84H8SjYNgPIZYqvGH49uWJfbBNNeO4XFYvkVYT+7D0dv18wQ+c03eI1F7hYMLt2+ kfO3gE+mU+dImYIyFVYhz73MrifXDrjpCJgv36fZuzIDqXmnqZauxd8cHUbv93LUYKF7 l+fhAcHWuoq1dLMGt4VIfD57ej3zVORFZOI7a4FQC6o+gmxkRUiiABo9xX4NujTrJdp7 sSG8mLbBQY7jJLVsdgovv5gg1MZzplt/ug9TW0DKZmFL6rODweHIjqjuWZ+ygkG666YT uVxQ== X-Gm-Message-State: AG10YOTnl4u158saSsHjsaMu9ut+UazqN8R5tf2auLq5JJhSFP3fONU85yMfvgZaVZks8iVaqnrkpNJvgjl1bQ== MIME-Version: 1.0 X-Received: by 10.182.65.69 with SMTP id v5mr7771697obs.27.1454091029597; Fri, 29 Jan 2016 10:10:29 -0800 (PST) Received: by 10.182.164.4 with HTTP; Fri, 29 Jan 2016 10:10:29 -0800 (PST) In-Reply-To: References: Date: Fri, 29 Jan 2016 10:10:29 -0800 Message-ID: Subject: Re: [FlyRotary] Re: parts upgrade; was: What do you think may be happening? To: Rotary motors in aircraft Content-Type: multipart/alternative; boundary=089e015383a24a53cc052a7cf365 --089e015383a24a53cc052a7cf365 Content-Type: text/plain; charset=UTF-8 Content-Transfer-Encoding: quoted-printable There are many thin walled sockets commercially available for this purpose. http://atkinsrotary.com/store/Thin-Wall-Spark-Plug-Socket-ARE905.html http://www.racingbeat.com/RX8/Ignition/11529.html http://mazdatrix.com/getprice.asp?partnum=3D49-11529 Pricey, but the Atkins one isn't too bad. On Fri, Jan 29, 2016 at 7:16 AM, Bill Bradburry wrote: > Steve, > > > > Bobby Hughes suggested that I only test the disable switches at 3000 rpm > or above. So yesterday I tried that. The secondary acted the same, > slightly richer. The primary caused the engine to cough and choke up a > couple of hairballs, go really lean, then come back and run slightly rich= er > just like the secondary. They both came to a mixture of 11.6-11.7 after > the disable. > > > > This works the same on both A and B controllers. I think this means that > the EC-2 is working, although it is taking a while to get the decision ma= de > to turn on the secondary after it realizes that I have turned the primary > off. This time delay was causing the engine to stop when I ran the test = at > idle. The way it acts might be a little disconcerting to a passenger if = I > tell them I am checking to make sure the engine runs ok=E2=80=A6.:>) > > > > On another note, I took your advice and bought and installed the BR10EIX > plugs yesterday after the test. I found an old plug wrench and ground it > down in order to get them installed. Naturally the wrench was so thin th= at > it cracked on the install. I doubt that it will hold up to do a change. = I > plan to get a wrench and have someone turn it down to fit. > > > > I assume that you have already done this. What dimension did you turn th= e > socket to? It seems that the opening in the block is one inch but the > wrench would need some clearance? I am way too tight to buy that wrench > from Racing Beat for $82 + shipping! :>) > > > > > > Bill > ------------------------------ > > *From:* Rotary motors in aircraft [mailto:flyrotary@lancaironline.net] > *Sent:* Wednesday, January 27, 2016 9:36 PM > *To:* Rotary motors in aircraft > *Subject:* [FlyRotary] Re: parts upgrade; was: What do you think may be > happening? > > > > Bill, > > > > Today I spent some time in my plane trying all the permutations and > combinations of applying power to the primary injectors, secondary > injectors, and grounding EC2 pin 30 with the cold switch. > > > > It turns out that my statement in the message below concerning the effect > of grounding EC2 pin 30 when cutting power to the secondary injectors whe= n > the MAP is below the staging threshold MAP was not correct. When I did > this today, the mixture went slightly richer just like you describe for > your system. > > > > As a result, my guess is that this behavior is most likely not an > indication of a problem to be solved. > > > > Steve Boese > ------------------------------ > > *From:* Steven W. Boese > *Sent:* Monday, January 25, 2016 12:23 PM > *To:* Rotary motors in aircraft > *Subject:* Re: [FlyRotary] Re: parts upgrade; was: What do you think may > be happening? > > > > Bill, > > > > Turning on the cold start switch is intended to give you a much richer > mixture when both the primary and secondary injectors are enabled. So yo= ur > system is working correctly in this regard. > > > > Disabling the secondary injectors with the DPDT switch is intended to bot= h > cut the power to the secondary injectors and enable the cold start functi= on > (as if the cold switch was turned on). This should have no effect on the > engine at MAP below the staging threshold since the engine would be runni= ng > on only the primary injectors just like it was before flipping the > secondary disable switch. > > Your previous statement: > > "With the engine idling at about 1400 rpm, and the mixture at about 14.7, > I turned off the secondary and the engine ran a little differently and th= e > mixture went to about 13.0." > > is troubling since doing this should have had no effect whatsoever. Is > the mixture change persistent and reproducible? If the mixture eventuall= y > (within a few seconds) returns to the original value, then your system is > most likely working correctly in this regard too. > > > > Steve Boese > > > > --089e015383a24a53cc052a7cf365 Content-Type: text/html; charset=UTF-8 Content-Transfer-Encoding: quoted-printable
Pricey,= but the Atkins one isn't too bad.
=
On Fri, Jan 29, 2016 at 7:16 AM, Bill Bradbu= rry <flyrotary@lancaironline.net> wrote:

Steve,

=C2=A0

Bobby Hughes sugge= sted that I only test the disable switches at 3000 rpm or above.=C2=A0 So yesterday I tried that.=C2=A0 The secondary acted the same, slightly richer.=C2=A0 The primar= y caused the engine to cough and choke up a couple of hairballs, go really le= an, then come back and run slightly richer just like the secondary.=C2=A0 They = both came to a mixture of 11.6-11.7 after the disable.

=C2=A0

This works the sam= e on both A and B controllers.=C2=A0 I think this means that the EC-2 is working, although it= is taking a while to get the decision made to turn on the secondary after it realizes that I have turned the primary off.=C2=A0 This time delay was caus= ing the engine to stop when I ran the test at idle.=C2=A0 The way it acts might= be a little disconcerting to a passenger if I tell them I am checking to make = sure the engine runs ok=E2=80=A6.:>)

=C2=A0

On another note, I= took your advice and bought and installed the BR10EIX plugs yesterday after the test.=C2=A0 I fo= und an old plug wrench and ground it down in order to get them installed.=C2=A0= Naturally the wrench was so thin that it cracked on the install.=C2=A0 I doubt that i= t will hold up to do a change.=C2=A0 I plan to get a wrench and have someone = turn it down to fit.

=C2=A0

I assume that you = have already done this.=C2=A0 What dimension did you turn the socket to?=C2=A0 It seems that = the opening in the block is one inch but the wrench would need some clearance?=C2=A0 I am way too tight to buy that wrench from Racing Beat for= $82 + shipping!=C2=A0=C2=A0 :>)

=C2=A0

=C2=A0

Bill

From: Rotary motors in aircraft [mailto:fl= yrotary@lancaironline.net]
Sent: Wednesday, January 27,= 2016 9:36 PM
To: Rotary motors in aircraft
Subject: [FlyRotary] = Re: parts upgrade; was: What do you think may be happening?

=C2=A0

Bill,=

=C2=A0

Today= I spent some time in my plane trying all the permutations and combinations of applying p= ower to the primary injectors, secondary injectors, and grounding EC2 pin 30 wit= h the cold switch.

=C2=A0

It tu= rns out that my statement in the message below concerning the effect of grounding EC2 pin 3= 0 when cutting power to the secondary injectors when the MAP is below the sta= ging threshold MAP was not correct.=C2=A0 When I did this today, the mixture wen= t slightly richer just like you describe for your system.

=C2=A0

As a = result, my guess is that=C2=A0this behavior is most likely not an indication of a problem to= be solved.

=C2=A0

Steve Boese

From: Steven W. Boese
Sent: Monday, January 25, 20= 16 12:23 PM
To: Rotary motors in aircraft
Subject: Re: [FlyRotary] Re:= parts upgrade; was: What do you think may be happening?

=C2=A0

Bill,=

=C2=A0

Turni= ng on the cold start switch=C2=A0is intended to=C2=A0give you a much richer mixture when b= oth the primary and secondary injectors are enabled.=C2=A0 So your system is working correctly in this regard.

=C2=A0

Disab= ling the secondary injectors with the DPDT switch=C2=A0is intended to=C2=A0both cut = the power to the secondary injectors and enable the cold start function (as if = the cold switch was turned on).=C2=A0 This should have no effect on the engine = at MAP below the staging threshold since the engine would be running on=C2=A0o= nly the primary injectors just like it was before flipping the secondary disabl= e switch.=C2=A0

Your = previous statement:

"With = the engine idling at about 1400 rpm, and the mixture at about 14.7, I turned off the secondary and the engine ran a little differently and the mixture went to a= bout 13.0."

is tr= oubling since doing this should have had no effect whatsoever.=C2=A0 Is the mixture change=C2=A0persistent and reproducible?=C2=A0 If the mixture eventually (within a few seconds) returns to the original value, then your system is m= ost likely working correctly in this regard too.

=C2=A0

Steve= Boese

=C2=A0


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