X-Virus-Scanned: clean according to Sophos on Logan.com Return-Path: Received: from willowsprings.uwyo.edu ([129.72.10.31] verified) by logan.com (CommuniGate Pro SMTP 5.4.4) with ESMTPS id 5439469 for flyrotary@lancaironline.net; Tue, 13 Mar 2012 02:00:50 -0400 Received-SPF: none receiver=logan.com; client-ip=129.72.10.31; envelope-from=SBoese@uwyo.edu Received: from ponyexpress-ht3.uwyo.edu (extlb.uwyo.edu [172.26.4.4]) by willowsprings.uwyo.edu (8.14.4/8.14.4) with ESMTP id q2D60C7o018582 (version=TLSv1/SSLv3 cipher=AES128-SHA bits=128 verify=FAIL) for ; Tue, 13 Mar 2012 00:00:12 -0600 (MDT) (envelope-from SBoese@uwyo.edu) Received: from ponyexpress-m10.uwyo.edu ([fe80::60dd:cb9e:6f71:3d48]) by ponyexpress-ht3.uwyo.edu ([fe80::4cde:db24:a0a9:ba5%15]) with mapi id 14.01.0339.001; Tue, 13 Mar 2012 00:00:11 -0600 From: "Steven W. Boese" To: Rotary motors in aircraft Subject: RE: [FlyRotary] Re: Thermostat and coolant pressure oscillation Thread-Topic: [FlyRotary] Re: Thermostat and coolant pressure oscillation Thread-Index: AQHNAMQYG/DfQCHofkCWg1iMa0m28JZnuTSg Date: Tue, 13 Mar 2012 06:00:10 +0000 Message-ID: <3E8191F276108F4481AB0721BBA9269E05C2F533@ponyexpress-m10.uwyo.edu> References: In-Reply-To: Accept-Language: en-US Content-Language: en-US X-MS-Has-Attach: X-MS-TNEF-Correlator: x-originating-ip: [75.249.166.17] Content-Type: multipart/alternative; boundary="_000_3E8191F276108F4481AB0721BBA9269E05C2F533ponyexpressm10u_" MIME-Version: 1.0 --_000_3E8191F276108F4481AB0721BBA9269E05C2F533ponyexpressm10u_ Content-Type: text/plain; charset="iso-8859-1" Content-Transfer-Encoding: quoted-printable David, One 1/8" hole in the non bypass thermostat appeared to provide enough flow = for the thermostat to respond while the engine warmed up. In my case, I co= uld also open the heater control valve during warmup to provide more coolan= t flow than just the hole in the thermostat, but this didn't seem necessary= . Steve Boese RV6A, 1986 13B NA, RD1A, EC2 ________________________________ From: Rotary motors in aircraft [flyrotary@lancaironline.net] on behalf of = hoursaway1@comcast.net [hoursaway1@comcast.net] Sent: Monday, March 12, 2012 8:50 PM To: Rotary motors in aircraft Subject: [FlyRotary] Re: Thermostat and coolant pressure oscillation Steve, I have the same design as yours but no heater core, am taking heat f= rom back side of oil cooler aprox. 1/3% of cooler hot air to cabin, do not = know if this will be enough, am in MI so will need good heat. With bypass= hole plugged the non-bypass therm will need holes drilled in it ( Lynn Han= over ) for coolant flow at cold temps when therm not open, correct. Just th= inking out loud. David R.Cook RV6A Rotary. --_000_3E8191F276108F4481AB0721BBA9269E05C2F533ponyexpressm10u_ Content-Type: text/html; charset="iso-8859-1" Content-Transfer-Encoding: quoted-printable

David,

 

One 1/8" hole in the non bypass thermostat appeared to provide enou= gh flow for the thermostat to respond while the engine warmed up.  In = my case, I could also open the heater control valve during warmup to provid= e more coolant flow than just the hole in the thermostat, but this didn't seem necessary.

 

Steve Boese
RV6A, 1986 13B NA, RD1A, EC2
From: Rotary motors in aircraft [flyrotary= @lancaironline.net] on behalf of hoursaway1@comcast.net [hoursaway1@comcast= .net]
Sent: Monday, March 12, 2012 8:50 PM
To: Rotary motors in aircraft
Subject: [FlyRotary] Re: Thermostat and coolant pressure oscillation=



Steve, I have the same design as yours but no heater core, am taking heat f= rom back side of oil cooler aprox. 1/3% of cooler hot air to cabin, do= not know if this will be enough, am in MI so will need good heat. &nb= sp; With bypass hole plugged the non-bypass therm will need holes drilled in it ( Lynn Hanover ) for coolant flow at cold te= mps when therm not open, correct. Just thinking out loud.  David =  R.Cook    RV6A  Rotary.
--_000_3E8191F276108F4481AB0721BBA9269E05C2F533ponyexpressm10u_--