X-Virus-Scanned: clean according to Sophos on Logan.com Return-Path: Received: from wf-out-1314.google.com ([209.85.200.174] verified) by logan.com (CommuniGate Pro SMTP 5.2.10) with ESMTP id 3328403 for flyrotary@lancaironline.net; Wed, 03 Dec 2008 08:53:47 -0500 Received-SPF: pass receiver=logan.com; client-ip=209.85.200.174; envelope-from=rwstracy@gmail.com Received: by wf-out-1314.google.com with SMTP id 28so3805809wfa.25 for ; Wed, 03 Dec 2008 05:53:10 -0800 (PST) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=gmail.com; s=gamma; h=domainkey-signature:received:received:message-id:date:from:sender :to:subject:in-reply-to:mime-version:content-type:references :x-google-sender-auth; bh=q4gytFliecfGMlBUbi3rDVn1lt8CAEKetqEgSxMzgaY=; b=nnax7ax8eHQl8SjqJ19P1Gvu6x3b7OuYbyi1qBWfAyHxhQiTDXH6LraYhIo3+0kDgF mhKaZ/aN1woZTJsBiUPY9T/8CqsrJyfeQY9QlXtIBNqA5QLwrRD0kTMQpqhHPEHRY7mT Qxv/UPlyFbk0ZIaYhOtTOMDGljK+JjRMMkA04= DomainKey-Signature: a=rsa-sha1; c=nofws; d=gmail.com; s=gamma; h=message-id:date:from:sender:to:subject:in-reply-to:mime-version :content-type:references:x-google-sender-auth; b=NmzsMkATfHg2VN4X+kIJYsNywyEOuxNX0y7LPO9XaoGybpVQATTmSzwoEi17V1/FIo ICjttkVd+Gimk5P2oAspY1zKpx0dTU2A4H8B3rHEpI++MNNc5QKi3IdMSfEguXLvpL3y 696Ngn6X83gcSgcJVACa2dOa8PCcbvB/XURG8= Received: by 10.114.153.2 with SMTP id a2mr8184024wae.170.1228312390469; Wed, 03 Dec 2008 05:53:10 -0800 (PST) Received: by 10.114.131.4 with HTTP; Wed, 3 Dec 2008 05:53:10 -0800 (PST) Message-ID: <1b4b137c0812030553k4e829b5fqe78997539463f784@mail.gmail.com> Date: Wed, 3 Dec 2008 08:53:10 -0500 From: "Tracy Crook" Sender: rwstracy@gmail.com To: "Rotary motors in aircraft" Subject: Re: [FlyRotary] Hose was Re: First Flight, short and hot In-Reply-To: MIME-Version: 1.0 Content-Type: multipart/alternative; boundary="----=_Part_66818_27932577.1228312390461" References: X-Google-Sender-Auth: 85ec3d7f0e08af13 ------=_Part_66818_27932577.1228312390461 Content-Type: text/plain; charset=WINDOWS-1252 Content-Transfer-Encoding: quoted-printable Content-Disposition: inline Don't know exactly how Jeff is using that clear hose (looks like a low pressure application) but my main complaint was that it had a huge amount o= f "creep" and the clamp needed constant re-tightening, especially in larger diameters. I still use it on my engine test stand to see whats happening but I once got burned when one of the hoses popped off (due to loose clamp) during an engine run. Tracy On Tue, Dec 2, 2008 at 2:40 PM, Ed Anderson wrot= e: > Jeff, you might check with Tracy Crook. Way back when, he attempted to > use some clear plastic/nylon cored reinforced hose for his coolant system > for the same reason (I think) =96 so you could see what was going on. As= best > I recall, it was not up to the task due to heat and pressure =96 but thes= e > were the main line hoses and not just to the header tank. > > > > I can not recall the type =96 but think he got them at the local hardware > store. > > > > Ed > > > > Ed Anderson > > Rv-6A N494BW Rotary Powered > > Matthews, NC > > eanderson@carolina.rr.com > > http://www.andersonee.com > > http://members.cox.net/rogersda/rotary/configs.htm#N494BW > > http://www.dmack.net/mazda/index.html > ------------------------------ > > *From:* Rotary motors in aircraft [mailto:flyrotary@lancaironline.net] *O= n > Behalf Of *Jeff Whaley > *Sent:* Tuesday, December 02, 2008 2:03 PM > *To:* Rotary motors in aircraft > *Subject:* [FlyRotary] Re: First Flight, short and hot > > > > Thanks Kelly, I copied (Bill Eslick's) installation (seen at Round-up) an= d > the see-through aspect of that hose was a major selling point; it's easy = to > see whether there's air or fluid in the line, which is very helpful =85 > ideally there should be fluid in the line and about 1 cup in the expansio= n > tank; I suppose removing the cap would provide same information =85 but t= he > tank has to be de-pressurized, cap removed and re-pressurized before flig= ht. > > Bill any comments on durability of that hose? > > Jeff > > > > *From:* Rotary motors in aircraft [mailto:flyrotary@lancaironline.net] *O= n > Behalf Of *Kelly Troyer > *Sent:* Tuesday, December 02, 2008 12:24 PM > *To:* Rotary motors in aircraft > *Subject:* [FlyRotary] First Flight, short and hot > > > > Jeff, > > You might keep an eye on the plastic hose goinng to the bottom of you= r > > expansion tank..........This particular hose is not durable and under the > high > > heat under the cowl (perhaps not during your Canadian winter) might have > > a short service life..........Project looks great and am looking forward = to > all > > further flight test info.......... > > -- > Kelly Troyer > "Dyke Delta"_13B ROTARY Engine > "RWS"_RD1C/EC2/EM2 > "Mistral"_Backplate/Oil Manifold > > > > -------------- Original message from Jeff Whaley : > -------------- > > Thanks to you all for the congratulatory comments =85 attached is a pictu= re > of expansion tank and preflight roll-out =85 the orange line is fuel retu= rn; > the brass is pressure gauge pickup and snifter valve installation. > > After reading Eds' email I now know why the water temperature was so high= . > I installed a thermostat with the onset of cold weather, but I couldn't = use > the original Mazda thermostat because my temperature bulb protrudes acros= s > the bypass hole. Originally the bypass hole was plugged and there was no > thermostat; however, I removed the bypass plug and used a non-Mazda > thermostat !! =85 so that's why the underside of the Mazda thermostat is = so > long! Thanks Ed for setting me straight and based on your comment about 2= 0% > loss of efficiency, I could possibly see 230F x 0.8 or as low as 184F on > next flight =85 that would be great! For now the thermostat is gone and b= ypass > is re-plugged. > > Closer examination of the belt and rubber deposits on underside of top > cowling suggests the belt got jammed in the pulley and cut by friction. > > I tried again last night to remove the alternator pulley nut =85 what's t= he > secret? Left-hand thread? Loctite or what? It's so tight I'm afraid of > damaging something trying to get it off. > > Jeff > > > > > > ------=_Part_66818_27932577.1228312390461 Content-Type: text/html; charset=WINDOWS-1252 Content-Transfer-Encoding: quoted-printable Content-Disposition: inline Don't know exactly how Jeff is using that clear hose (looks like a low = pressure application) but my main complaint was that it had a huge amount o= f "creep" and the clamp needed constant re-tightening, especially= in larger diameters.   I still use it on my engine test stand to see = whats happening but I once got burned when one of the hoses popped off (due= to loose clamp) during an engine run.  

Tracy

On Tue, Dec 2, 2008 at 2:40 PM,= Ed Anderson <eanderson@carolina.rr.com> wrote:

Jeff, you might check with Tracy C= rook.  Way back when, he attempted to use some clear plastic/nylon cored reinforced ho= se for his coolant system for the same reason (I think) =96 so you could see w= hat was going on.  As best I recall, it was not up to the task due to heat= and pressure =96 but these were the main line hoses and not just to the header = tank. 

 

I can not recall the type =96 but = think he got them at the local hardware store.

 

Ed

 

From: Ro= tary motors in aircraft [mailto:fl= yrotary@lancaironline.net] On Behalf Of Jeff Whaley
Sent: Tuesday, December 02= , 2008 2:03 PM
To: Rotary motors in aircraft
Subject: [FlyRotary] Re: F= irst Flight, short and hot

 

Thanks Kelly, I copied (Bill Eslick's) installation (seen at Round-up) and the see-through aspect of that hose was a major selling point; it's easy to see whether the= re's air or fluid in the line, which is very helpful =85 ideally there should be= fluid in the line and about 1 cup in the expansion tank; I suppose removing the c= ap would provide same information =85 but the tank has to be de-pressurized, c= ap removed and re-pressurized before flight.

Bill any commen= ts on durability of that hose?

Jeff

 

From: Ro= tary motors in aircraft [mailto:fl= yrotary@lancaironline.net] On Beh= alf Of Kelly Troyer
Sent: Tuesday, December 02= , 2008 12:24 PM
To: Rotary motors in aircraft
Subject: [FlyRotary] First= Flight, short and hot

 

   Jeff,

    You might keep an eye on the plastic hose goinng to the bottom of your

expansion tank..........This particular hose is not durable and under the high

heat under the cowl (perhaps not during your Canadian winter) might have

a short service life..........Project looks great and am looking forward to all

further flight test info..........

--
Kelly Troyer
"Dyke Delta"_13B ROTARY Engine
"RWS"_RD1C/EC2/EM2
"Mistral"_Backplate/Oil Manifold

 

-------------- Original message from Jeff Whaley <jwhaley@datacast.com>: --------------

Thanks to you a= ll for the congratulatory comments =85 attached is a picture of expansion tank= and preflight roll-out =85 the orange line is fuel return; the brass is pressur= e gauge pickup and snifter valve installation.

After reading E= ds' email I now know why the water temperature was so high.  I installed a thermostat with the onset of cold weather, but I couldn't use the original Mazda thermostat because my temperature bulb protrudes across the bypass ho= le.  Originally the bypass hole was plugged and there was no thermostat; however, I removed the bypass plug and used a non-Mazda thermostat !! =85 s= o that's why the underside of the Mazda thermostat is so long! Thanks Ed for setting me straight and based on your comment about 20% loss of efficiency,= I could possibly see 230F x 0.8 or as low as 184F on next flight =85 that wou= ld be great! For now the thermostat is gone and bypass is re-plugged.

Closer examinat= ion of the belt and rubber deposits on underside of top cowling suggests the be= lt got jammed in the pulley and cut by friction.

I tried again l= ast night to remove the alternator pulley nut =85 what's the secret? Left-hand thread? Loctite or what? It's so tight I'm afraid of damaging something try= ing to get it off.

Jeff

 

 


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