X-Virus-Scanned: clean according to Sophos on Logan.com Return-Path: Sender: To: lml Date: Sat, 23 Sep 2006 21:59:54 -0400 Message-ID: X-Original-Return-Path: Received: from ms-smtp-05.texas.rr.com ([24.93.47.44] verified) by logan.com (CommuniGate Pro SMTP 5.1c.4) with ESMTP id 1416785 for lml@lancaironline.net; Sat, 23 Sep 2006 10:11:27 -0400 Received-SPF: pass receiver=logan.com; client-ip=24.93.47.44; envelope-from=toucan@Satx.rr.com Received: from VAIO (cpe-24-243-1-103.satx.res.rr.com [24.243.1.103]) by ms-smtp-05.texas.rr.com (8.13.6/8.13.6) with SMTP id k8NEAUG1017641 for ; Sat, 23 Sep 2006 09:10:31 -0500 (CDT) X-Original-Message-ID: <004c01c6df19$ff110600$6701f318@VAIO> From: "James Cameron" X-Original-To: "Lancair Mailing List" Subject: Boost Pump Switching X-Original-Date: Sat, 23 Sep 2006 09:10:16 -0500 MIME-Version: 1.0 Content-Type: multipart/alternative; boundary="----=_NextPart_000_0049_01C6DEF0.15940FA0" X-Priority: 3 X-MSMail-Priority: Normal X-Mailer: Microsoft Outlook Express 6.00.2900.2869 X-MIMEOLE: Produced By Microsoft MimeOLE V6.00.2900.2962 X-Virus-Scanned: Symantec AntiVirus Scan Engine This is a multi-part message in MIME format. ------=_NextPart_000_0049_01C6DEF0.15940FA0 Content-Type: text/plain; charset="iso-8859-1" Content-Transfer-Encoding: quoted-printable Here's one to consider: For the momentary prime switch, use a double = pole, double throw switch. Wire one side as NO to activate the high = boost for prime, and wire the other side as NC in series with your low = boost switch. This prevents both high and low boost being activated = simultaneously -- which could happen if you accidentally bump the prime = button while the low boost is on. Dunno what would happen if both high = and low are turned on at the same time, but I've posed the question in = the past and nobody seemed to know. Given the price of the pump, why = not spend an extra buck on the switch and be safe? Jim Cameron Boerne, TX [And no, other than priming, I've never used the boost pump on 2 ES's = and 1 Legacy! Took my last Legacy to dens. alt. of 19K once and all the = boost pump did was make it run rougher. Problem up there is not enough = air, so more fuel pressure doesn't do much.] ------=_NextPart_000_0049_01C6DEF0.15940FA0 Content-Type: text/html; charset="iso-8859-1" Content-Transfer-Encoding: quoted-printable

Here's one to consider: For the momentary = prime switch,=20 use a double pole, double throw switch. Wire one side as NO to = activate=20 the high boost for prime, and wire the other side as NC in series with = your low=20 boost switch. This prevents both high and low boost being = activated=20 simultaneously -- which could happen if you accidentally bump the prime = button=20 while the low boost is on. Dunno what would happen if both high = and low=20 are turned on at the same time, but I've posed the question in the past = and=20 nobody seemed to know. Given the price of the pump, why not spend = an extra=20 buck on the switch and be safe?

Jim Cameron

Boerne, TX

[And no, other than priming, I've never used the = boost pump on=20 2 ES's and 1 Legacy! Took my last Legacy to dens. alt. of 19K once = and all=20 the boost pump did was make it run rougher. Problem up there is = not enough=20 air, so more fuel pressure doesn't do much.]

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