X-Virus-Scanned: clean according to Sophos on Logan.com X-SpamCatcher-Score: 1 [X] Return-Path: Received: from x2.itlnet.net ([64.19.112.8] verified) by logan.com (CommuniGate Pro SMTP 5.1.3) with ESMTPS id 1633409 for flyrotary@lancaironline.net; Sat, 02 Dec 2006 20:47:46 -0500 Received-SPF: pass receiver=logan.com; client-ip=64.19.112.8; envelope-from=jwvoto@itlnet.net Received: from smtpav.service (email1.itlnet.net [192.168.10.156]) by x2.itlnet.net (8.13.1/8.13.1) with SMTP id kB31iJqe011365 for ; Sat, 2 Dec 2006 19:44:19 -0600 Received: from JWVOTO (unverified [64.19.115.95]) by mail.itlnet.net (Rockliffe SMTPRA 7.0.3) with ESMTP id for ; Sat, 2 Dec 2006 19:46:02 -0600 Message-ID: <00f601c7167f$13068300$c0731340@JWVOTO> From: "Wendell Voto" To: "Rotary motors in aircraft" References: Subject: Re: [FlyRotary] Re: gauges Date: Fri, 1 Dec 2006 22:36:19 -0600 MIME-Version: 1.0 Content-Type: multipart/alternative; boundary="----=_NextPart_000_00E5_01C71599.1ECBC9C0" X-Priority: 3 X-MSMail-Priority: Normal X-Mailer: Microsoft Outlook Express 5.50.4133.2400 X-MimeOLE: Produced By Microsoft MimeOLE V5.50.4133.2400 X-ITLnet-MailScanner: Found to be clean X-ITLnet-MailScanner-SpamCheck: not spam, SpamAssassin (not cached, score=0.24, required 4, BAYES_00 -2.60, DATE_IN_PAST_12_24 1.25, FORGED_RCVD_HELO 0.14, HTML_MESSAGE 0.00, RCVD_IN_SORBS_WEB 1.46) This is a multi-part message in MIME format. ------=_NextPart_000_00E5_01C71599.1ECBC9C0 Content-Type: text/plain; charset="iso-8859-1" Content-Transfer-Encoding: quoted-printable Message ----- Original Message -----=20 From: Jeff Whaley=20 To: Rotary motors in aircraft=20 Sent: Friday, December 01, 2006 1:10 PM Subject: [FlyRotary] Re: gauges If you are using a steam gauge for the coolant system pressure gauge = here are 2 suggestions (this was my experience with the Ford V6): 1) You need some negative reading on the scale, i.e. the coolant = system becomes a vacuum when the engine cools down . anything in your = overflow gets sucked back into the engine. 2) Don't put the measuring point in the engine block; you will = get excessive pressure readings that will scare you. Best place is on = the inlet to the water pump, Tee-in a swirl pot or equivalent and leave = an air gap. Jeff Whaley =20 Thanks Jeff for the advice. Will see how it can be implimented. Wendell=20 -------------------------------------------------------------------------= ----- ------=_NextPart_000_00E5_01C71599.1ECBC9C0 Content-Type: text/html; charset="iso-8859-1" Content-Transfer-Encoding: quoted-printable Message=
 
----- Original Message -----
From:=20 Jeff Whaley=20
Sent: Friday, December 01, 2006 = 1:10=20 PM
Subject: [FlyRotary] Re: = gauges

If you are = using a=20 steam gauge for the coolant system pressure gauge here are 2 = suggestions (this=20 was my experience with the Ford V6):

1)      =20 You need=20 some negative reading on the scale, i.e. the coolant system becomes a = vacuum=20 when the engine cools down … anything in your overflow gets = sucked back into=20 the engine.

2)      =20 Don’t=20 put the measuring point in the engine block; you will get excessive = pressure=20 readings that will scare you. Best place is on the inlet to the water = pump,=20 Tee-in a swirl pot or equivalent and leave an air=20 gap.

Jeff=20 Whaley

 

 Thanks Jeff for = the advice.=20 Will see how it can be implimented.

Wendell 

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