X-Virus-Scanned: clean according to Sophos on Logan.com Return-Path: Received: from imo-m24.mx.aol.com ([64.12.137.5] verified) by logan.com (CommuniGate Pro SMTP 5.2c1) with ESMTP id 2431516 for flyrotary@lancaironline.net; Wed, 24 Oct 2007 19:34:24 -0400 Received-SPF: pass receiver=logan.com; client-ip=64.12.137.5; envelope-from=Lehanover@aol.com Received: from Lehanover@aol.com by imo-m24.mx.aol.com (mail_out_v38_r9.3.) id q.c0d.208d66e6 (41810) for ; Wed, 24 Oct 2007 19:33:44 -0400 (EDT) From: Lehanover@aol.com Message-ID: Date: Wed, 24 Oct 2007 19:33:44 EDT Subject: Re: [FlyRotary] Re: LS1 coils To: flyrotary@lancaironline.net MIME-Version: 1.0 Content-Type: multipart/alternative; boundary="-----------------------------1193268824" X-Mailer: 9.0 Security Edition for Windows sub 5378 X-Spam-Flag: NO -------------------------------1193268824 Content-Type: text/plain; charset="UTF-8" Content-Transfer-Encoding: quoted-printable Content-Language: en =20 In a message dated 10/24/2007 6:29:57 P.M. Eastern Daylight Time, =20 ALVentures@cox.net writes: I was concerned earlier when I had checked than while cranking with the=20 starter, and it was hard to getting more than 1/8=E2=80=9D jump. Have no p= roblems=20 starting, but it seems the output is quite sensitive to voltage; and may be= among=20 the first reasons for loss of power following an alternator failure.=20 I guess I have D580=E2=80=99s, but I don=E2=80=99t know what the difference= is from a D581.=20 Al G The low cranking voltage is common due to the high current draw of the =20 starter. Put an Amp Probe around the starter wire or a volt meter on the bat= tery =20 during cranking. The poor performance of the coil is cured as soon as the =20 starter circuit opens. Ignition coils should work down to fairly low battery= =20 voltage, should the alternator fail. The controller may shut down first. Ig= nition=20 performance that is being reduced by a dying battery may be extended by =20 reducing throttle. One factor in secondary ignition performance is cylinder=20= =20 pressure. A badly missing engine from low voltage may return to power with j= ust a=20 slight reduction in throttle. (reduces cylinder pressure). =20 Lynn E. Hanover ************************************** See what's new at http://www.aol.com -------------------------------1193268824 Content-Type: text/html; charset="UTF-8" Content-Transfer-Encoding: quoted-printable Content-Language: en

In a message dated 10/24/2007 6:29:57 P.M. Eastern Daylight Time,=20 ALVentures@cox.net writes:

<= FONT=20 style=3D"BACKGROUND-COLOR: transparent" face=3DVerdana color=3D#0000ff siz= e=3D2>

I was concern= ed=20 earlier when I had checked than while cranking with the starter, and it wa= s=20 hard to getting more than 1/8=E2=80=9D jump. Have no problems starti= ng, but it=20 seems the output is quite sensitive to voltage; and may be among the first= =20 reasons for loss of power following an alternator failure.

I guess I hav= e=20 D580=E2=80=99s, but I don=E2=80=99t know what the difference is from a D58= 1.

Al=20 G

The low cranking voltage is common due to the high current draw of the=20 starter. Put an Amp Probe around the starter wire or a volt meter on the bat= tery=20 during cranking. The poor performance of the coil is cured as soon as the=20 starter circuit opens. Ignition coils should work down to fairly low battery= =20 voltage, should the alternator fail. The controller may shut down first.=20 Ignition performance that is being reduced by a dying battery may be extende= d by=20 reducing throttle. One factor in secondary ignition performance is cylinder=20 pressure. A badly missing engine from low voltage may return to power with j= ust=20 a slight reduction in throttle.

(reduces cylinder pressure).

Lynn E. Hanover

See w= hat's new at AOL.c= om and Make AOL Your Homepage.

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