X-Virus-Scanned: clean according to Sophos on Logan.com Return-Path: Sender: To: lml@lancaironline.net Date: Wed, 26 Oct 2011 06:21:22 -0400 Message-ID: X-Original-Return-Path: Received: from elasmtp-galgo.atl.sa.earthlink.net ([209.86.89.61] verified) by logan.com (CommuniGate Pro SMTP 5.4.2) with ESMTP id 5172766 for lml@lancaironline.net; Tue, 25 Oct 2011 21:14:59 -0400 Received-SPF: none receiver=logan.com; client-ip=209.86.89.61; envelope-from=panelmaker@earthlink.net DomainKey-Signature: a=rsa-sha1; q=dns; c=nofws; s=dk20050327; d=earthlink.net; b=Hn78ts7S+YP/QX7VUOcR83VCp/AKtD39ZE/w0RCLCaC2qcYTWbTTsTHy9/550BpL; h=Received:From:To:References:Subject:Date:Message-ID:MIME-Version:Content-Type:X-Mailer:In-Reply-To:Thread-Index:X-MimeOLE:X-ELNK-Trace:X-Originating-IP; Received: from [209.173.71.64] (helo=COMPUTER1) by elasmtp-galgo.atl.sa.earthlink.net with esmtpa (Exim 4.67) (envelope-from ) id 1RIs4X-0005Du-5e for lml@lancaironline.net; Tue, 25 Oct 2011 21:14:25 -0400 From: "Jim Nordin" X-Original-To: "'Lancair Mailing List'" References: Subject: Problem with Fluctuating Amperage X-Original-Date: Tue, 25 Oct 2011 20:14:34 -0500 X-Original-Message-ID: <5AC53D5CE9844D9BBD0760C1221C59DC@COMPUTER1> MIME-Version: 1.0 Content-Type: multipart/alternative; boundary="----=_NextPart_000_0094_01CC9352.B74C8B30" X-Mailer: Microsoft Office Outlook 11 In-Reply-To: Thread-Index: AcyTesi8dZosAP1kSVCrsTFIgarz4wAAaEhA X-MimeOLE: Produced By Microsoft MimeOLE V6.00.2900.6109 X-ELNK-Trace: bdfc62829fd2a80cc8ad50643b1069f8239a348a220c2609a10a5e5a650b51e2b9a10d773f11a20f667c3043c0873f7e350badd9bab72f9c350badd9bab72f9c X-Originating-IP: 209.173.71.64 This is a multi-part message in MIME format. ------=_NextPart_000_0094_01CC9352.B74C8B30 Content-Type: text/plain; charset="Windows-1252" Content-Transfer-Encoding: quoted-printable It could be the load the regulator should see is intermittent. 2=A2 Jim =20 _____ =20 From: Lancair Mailing List [mailto:lml@lancaironline.net] On Behalf Of Robert R Pastusek Sent: Tuesday, October 25, 2011 8:01 PM To: lml@lancaironline.net Subject: [LML] Re: Problem with Fluctuating Amperage =20 David,=20 You could have a regulator going bad, but I=92d look for a loose ground = first. This won=92t be easy, but is more likely than a bad regulator. Also, if = you don=92t find and fix the problem very quickly, you will likely fry the regulator=85and possibly other equipment as well. =20 My two cents=85 Bob =20 Any ideas about what would cause my amperage to start fluctuating wildly about 5 minutes into a flight?=20 It starts out fine after takeoff at 15 amps and then goes to -50 amps = for 30 seconds, and then gyrates between 5 amps and -50 amps for a minute and = then goes back to normal. It repeats this sequence every 5 minutes.=20 My fuel gages also go down to zero during this episode and then back to normal. Is my B&C LR3C Linear Regulator going bad?=20 (I'm getting these readings from my Grand Rapids EIS engine monitor. = It's hooked up to a Grand Rapids EFIS Sport.) Thanks for the help! David T. Legacy RG =20 ------=_NextPart_000_0094_01CC9352.B74C8B30 Content-Type: text/html; charset="Windows-1252" Content-Transfer-Encoding: quoted-printable

It could be the load the regulator = should see is intermittent.

2¢

Jim

From: = Lancair Mailing List [mailto:lml@lancaironline.net] On Behalf Of Robert R Pastusek
Sent: Tuesday, October = 25, 2011 8:01 PM
To: = lml@lancaironline.net
Subject: [LML] Re: = Problem with Fluctuating Amperage

David,
You could have a regulator going bad, but I=92d look for a loose ground first. This won=92t be easy, but is more likely than a bad regulator. = Also, if you don=92t find and fix the problem very quickly, you will likely = fry the regulator=85and possibly other equipment as well.

My two = cents=85

Bob

Any ideas about what would cause my amperage to start fluctuating wildly = about 5 minutes into a flight?

It starts out fine after takeoff at 15 amps and then goes to -50 amps = for 30 seconds, and then gyrates between 5 amps and -50 amps for a minute and = then goes back to normal. It repeats this sequence every 5 minutes.

My fuel gages also go down to zero during this episode and then back to = normal.

Is my B&C LR3C Linear Regulator going bad?

(I'm getting these readings from my Grand Rapids EIS engine monitor. = It's hooked up to a Grand Rapids EFIS Sport.)

Thanks for the help!

David T.
Legacy RG

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