X-Virus-Scanned: clean according to Sophos on Logan.com Return-Path: Received: from poplet2.per.eftel.com ([203.24.100.45] verified) by logan.com (CommuniGate Pro SMTP 5.2.14) with ESMTP id 3758019 for flyrotary@lancaironline.net; Tue, 14 Jul 2009 23:28:02 -0400 Received-SPF: none receiver=logan.com; client-ip=203.24.100.45; envelope-from=lendich@aanet.com.au Received: from sv1-1.aanet.com.au (sv1-1.per.aanet.com.au [203.24.100.68]) by poplet2.per.eftel.com (Postfix) with ESMTP id 3DF4A173943 for ; Wed, 15 Jul 2009 11:27:24 +0800 (WST) Received: from ownerf1fc517b8 (203.171.92.134.static.rev.aanet.com.au [203.171.92.134]) by sv1-1.aanet.com.au (Postfix) with SMTP id 59ACABEC018 for ; Wed, 15 Jul 2009 11:27:22 +0800 (WST) Message-ID: <60D96FA5AF7F4CF7A1FE7919C42ADABD@ownerf1fc517b8> From: "George Lendich" To: "Rotary motors in aircraft" References: Subject: Re: [FlyRotary] Re: Oly's report on accident Date: Wed, 15 Jul 2009 13:27:27 +1000 MIME-Version: 1.0 Content-Type: multipart/alternative; boundary="----=_NextPart_000_0013_01CA054F.FF5EAB30" X-Priority: 3 X-MSMail-Priority: Normal X-Mailer: Microsoft Outlook Express 6.00.2900.5512 X-MimeOLE: Produced By Microsoft MimeOLE V6.00.2900.5579 X-Antivirus: avast! (VPS 090714-0, 07/14/2009), Outbound message X-Antivirus-Status: Clean This is a multi-part message in MIME format. ------=_NextPart_000_0013_01CA054F.FF5EAB30 Content-Type: text/plain; charset="utf-8" Content-Transfer-Encoding: quoted-printable Bill, I didn't know that! George ( down under) ----- Original Message -----=20 From: wrjjrs@aol.com=20 To: Rotary motors in aircraft=20 Sent: Tuesday, July 14, 2009 3:01 AM Subject: [FlyRotary] Re: Oly's report on accident Ok Ed,=20 Let's do a quick carb-speak check. FLOAT level typically is checked = with the carb upside down and the bowl removed. The number is the = measured distance from the gasket surface to the highest point on the = float unless depicted otherwise in the manual. Remember the FLOAT level = is measured with the carb inverted, and the thing to remember is that = the higher the FLOAT level the lower the FUEL level. The confusion with = the reversed levels is the reason that all the motorcycle manufacturers = went to FUEL level only in their specifications. The motorcycle guys = gave you a tube which was a simple graduated cylinder, a hose, and a tap = screw to put in the bottom of the float bowl. You were supposed to only = measure the fuel level. In fact if you look at later model carburetors = you will see that the flange that contains the float bowl is cut away in = the center so you can see the gasket mating surface. The purpose of the = cutaway was to allow you to see the gasket seal surface to measure the = fuel level, which used the same reference surface. If you look in the = service manual (Kawasaki at least) of a bike with carbs printed in the = last 15 years you will see only a fuel level listed. Boy did that cause = the mechanics to bitch when they first made the change! When speaking = only of the fuel level the understanding is easy. Fuel level high, carb = runs rich. Fuel level low, carb runs lean. Sorry for the long explaination for the very simple concept. Bill Jepson -----Original Message----- From: Ed Anderson To: Rotary motors in aircraft Sent: Mon, Jul 13, 2009 9:30 am Subject: [FlyRotary] Re: Oly's report on accident Ok, Bill =E2=80=93 you lost me. Must admit my carburetor knowledge is = a bit on the skimpy side. However, in the carburetors I recall =E2=80=93 when the float level = was high in the bow that meant there was lots of fuel in the bowl, when = the float level was low in the bowl the fuel was also. Am I confused or = did you =E2=80=9Cmisspeak=E2=80=9D {:>)? Ed Ed Anderson Rv-6A N494BW Rotary Powered Matthews, NC eanderson@carolina.rr.com http://www.andersonee.com http://www.dmack.net/mazda/index.html http://www.flyrotary.com/ http://members.cox.net/rogersda/rotary/configs.htm#N494BW http://www.rotaryaviation.com/Rotorhead%20Truth.htm -------------------------------------------------------------------------= ----- From: Rotary motors in aircraft [mailto:flyrotary@lancaironline.net] = On Behalf Of wrjjrs@aol.com Sent: Monday, July 13, 2009 11:56 AM To: Rotary motors in aircraft Subject: [FlyRotary] Re: Oly's report on accident Finn, Running Carburetors if the float level is too high, and therefore the = fuel level too low, it can prevent the vacuum from raising the fuel = enough to keep the engine running. This is less common than the FUEL = level being too HIGH which will cause the engine to go rich when the = throttle is closed. I see the rich condition far more often.=20 Bill Jepson -----Original Message----- From: Finn Lassen To: Rotary motors in air craft Sent: Sat, Jul 11, 2009 4:24 pm Subject: [FlyRotary] Re: Oly's report on accident Too high? Now that's a new one. Please explain.=20 =20 Finn=20 =20 Al Gietzen wrote:=20 > I sometimes would have the engine quit > after pulling back on the = power while crossing midfield coming in a full > speed from the beach to = land at Clearwater airpark=20 > -------------------------=20 > Did you ever check the carburetor float levels? Engine dying after = pulling=20 > the power is a symptom of too high a float level.=20 >=20 > Just a thought,=20 >=20 > Al=20 >=20 >=20 > --=20 > Homepage: http://www.flyrotary.com/=20 > Archive and UnSub: = http://mail.lancaironline.net:81/lists/flyrotary/List.html=20 > = ------------------------------------------------------------------------ = >=20 >=20 > Internal Virus Database is out of date.=20 > Checked by AVG - http://www.avg.com > Version: 8.0.169 / Virus = Database: 270.13.2/2214 - Release Date: 7/2/2009 5:54 AM < br> >=20 > =20 --=20 Homepage: http://www.flyrotary.com/=20 Archive and UnSub: = http://mail.lancaironline.net:81/lists/flyrotary/List.html=20 -------------------------------------------------------------------------= ----- A Good Credit Score is 700 or Above. See yours in just 2 easy steps!=20 -------------------------------------------------------------------------= ----- A Good Credit Score is 700 or Above. See yours in just 2 easy steps! ------=_NextPart_000_0013_01CA054F.FF5EAB30 Content-Type: text/html; charset="utf-8" Content-Transfer-Encoding: quoted-printable =EF=BB=BF
Bill,
I didn't know that!
George ( down under)
----- Original Message -----
From:=20 wrjjrs@aol.com
Sent: Tuesday, July 14, 2009 = 3:01=20 AM
Subject: [FlyRotary] Re: Oly's = report on=20 accident

Ok Ed,
Let's do a quick carb-speak check. FLOAT = level=20 typically is checked with the carb upside down and the bowl removed. = The=20 number is the measured distance from the gasket surface to the highest = point=20 on the float unless depicted otherwise in the manual. Remember the = FLOAT level=20 is measured with the carb inverted, and the thing to remember is that = the=20 higher the FLOAT level the lower the FUEL level. The confusion = with the=20 reversed levels is the reason that all the motorcycle manufacturers = went to=20 FUEL level only in their specifications. The motorcycle guys gave you = a tube=20 which was a simple graduated cylinder, a hose, and a tap screw to put = in the=20 bottom of the float bowl. You were supposed to only measure the fuel = level. In=20 fact if you look at later model carburetors you will see that the = flange that=20 contains the float bowl is cut away in the center so you can see the = gasket=20 mating surface. The purpose of the cutaway was to allow you to see the = gasket=20 seal surface to measure the fuel level, which used the same reference = surface.=20 If you look in the service manual (Kawasaki at least) of a bike with = carbs=20 printed in the last 15 years you will see only a fuel level listed. = Boy did=20 that cause the mechanics to bitch when they first made the change! = When=20 speaking only of the fuel level the understanding is easy. Fuel level = high,=20 carb runs rich. Fuel level low, carb runs lean.
Sorry for the long=20 explaination for the very simple concept.
Bill=20 Jepson


-----Original Message-----
From: Ed Anderson=20 <eanderson@carolina.rr.com>
To: Rotary motors in aircraft=20 <flyrotary@lancaironline.net>
Sent: Mon, Jul 13, 2009 9:30=20 am
Subject: [FlyRotary] Re: Oly's report on accident

Ok, Bill = =E2=80=93 you lost=20 me.  Must admit my carburetor knowledge is a bit on the skimpy=20 side.
 
However, in = the=20 carburetors I recall =E2=80=93 when the float level was high in the = bow that meant=20 there was lots of fuel in the bowl, when the float level was low in = the bowl=20 the fuel was also.  Am I confused or did you = =E2=80=9Cmisspeak=E2=80=9D=20 {:>)?
 
Ed
 
Ed=20 Anderson
Rv-6A = N494BW Rotary=20 Powered
Matthews,=20 NC
eanderson@carolina.rr.com
http://www.andersonee.com
http://www.dmack.net/mazda/index.html<= /DIV>
http://www.flyrotary.com/
http://members.cox.net/rogersda/rotary/configs.htm#N494BW
http://www.rotaryaviation.com/Rotorhead%20Truth.htm
From: Rotary=20 motors in aircraft [mailto:flyrotary@lancaironli= ne.net]=20 On Behalf Of wrjjrs@aol.com
Sent: Monday, July 13, 2009 = 11:56=20 AM
To: Rotary = motors in=20 aircraft
Subject: = [FlyRotary]=20 Re: Oly's report on accident
 
Finn,
Running Carburetors = if the float=20 level is too high, and therefore the fuel level too low, it can = prevent the=20 vacuum from raising the fuel enough to keep the engine running. This = is less=20 common than the FUEL level being too HIGH which will cause the engine = to go=20 rich when the throttle is closed. I see the rich condition far more = often.=20
Bill Jepson


-----Original Message-----
From: Finn = Lassen=20 <finn.lassen@verizon.net>To:=20 Rotary motors in air craft <flyrotary@lancaironline.net>
Sent:=20 Sat, Jul 11, 2009 4:24 pm
Subject: [FlyRotary] Re: Oly's report on=20 accident
Too=20 high? Now that's a new one. Please=20 explain. 
 
Finn 
 
Al Gietzen=20 wrote: 
> I sometimes would have the engine quit > after = pulling=20 back on the power while crossing midfield coming in a full > speed = from the=20 beach to land at Clearwater airpark 
>=20 ------------------------- 
> Did you ever check the = carburetor=20 float levels? Engine dying after pulling 
> the power is a = symptom=20 of too high a float level. 
> 
> Just a=20 thought, 
> 
>=20 Al 
> 
> 
> -- 
> = Homepage: http://www.flyrotary.com/ 
> Archive = and UnSub:=20 http://mail.lancaironline.net:81/lists/flyrotary/List.htm= l 
>=20 = ------------------------------------------------------------------------&= nbsp;
> 
> 
>=20 Internal Virus Database is out of date. 
> Checked by AVG - = http://www.avg.com = > Version:=20 8.0.169 / Virus Database: 270.13.2/2214 - Release Date: 7/2/2009 5:54=20 AM < br> > 
>  
-- 
Homepage: = http://www.flyrotary.com/ 
Archive and = UnSub: http://mail.lancaironline.net:81/lists/flyrotary/List.htm= l 
 
A=20 Good Credit Score is 700 or Above. See yours in just 2 easy steps!=20
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