X-Virus-Scanned: clean according to Sophos on Logan.com Return-Path: Received: from imo-m26.mx.aol.com ([64.12.137.7] verified) by logan.com (CommuniGate Pro SMTP 5.0.9) with ESMTP id 1180016 for flyrotary@lancaironline.net; Fri, 16 Jun 2006 01:10:02 -0400 Received-SPF: pass receiver=logan.com; client-ip=64.12.137.7; envelope-from=WRJJRS@aol.com Received: from WRJJRS@aol.com by imo-m26.mx.aol.com (mail_out_v38_r7.5.) id q.4f7.130397 (39329) for ; Fri, 16 Jun 2006 01:09:14 -0400 (EDT) From: WRJJRS@aol.com Message-ID: <4f7.130397.31c396fa@aol.com> Date: Fri, 16 Jun 2006 01:09:14 EDT Subject: Re: [FlyRotary] Re: Renesis Crank Angle Sensor To: flyrotary@lancaironline.net MIME-Version: 1.0 Content-Type: multipart/alternative; boundary="-----------------------------1150434554" X-Mailer: 9.0 SE for Windows sub 5027 X-Spam-Flag: NO -------------------------------1150434554 Content-Type: text/plain; charset="ISO-8859-1" Content-Transfer-Encoding: quoted-printable =20 In a message dated 6/15/2006 6:24:03 AM Pacific Standard Time, =20 Lehanover@aol.com writes: Lynn, =20 A toothed belt makes sense. I was thinking ribbed or V. =20 Bobby Bobby, =20 Lynn mentioned this once but it bears repeating, the crank angle sensor is =20 just that. You must be sure that the angle of the toothed wheel and the e-sh= aft=20 remain in proper timing! Even a very small variance is bad. Your tolerance=20 would have to stay at +- .5 degrees max. That isn't possible with anything=20= but=20 a toothed belt or direct attachment. (which is much better) I had a brain=20 wave one time and thought if people are getting undersized pulleys made, wh= y=20 not raise a flange on both sides and cut the tooth pattern in it? This woul= d be=20 very reliable and would allow 2 pickups for redundancy. The patterns could=20 be cut at the same angle or 180=B0 or whatever angle allowed the easiest=20 mounting of a second pickup. Bill Jepson -------------------------------1150434554 Content-Type: text/html; charset="ISO-8859-1" Content-Transfer-Encoding: quoted-printable
In a message dated 6/15/2006 6:24:03 AM Pacific Standard Time,=20 Lehanover@aol.com writes:
<= FONT=20 style=3D"BACKGROUND-COLOR: transparent" face=3DArial color=3D#000000 size= =3D2>
Lynn,<= /DIV>
 =
A toothed bel= t makes=20 sense. I was thinking ribbed or V.
 =
Bobby
Bobby,
 
Lynn mentioned this once but it bears repeating, the crank angle sensor= is=20 just that. You must be sure that the angle of the toothed wheel and the e-sh= aft=20 remain in proper timing! Even a very small variance is bad. Your tolerance w= ould=20 have to stay at +- .5 degrees max. That isn't possible with anything but a=20 toothed belt or direct attachment. (which is much better) I had a brain wave= one=20 time and thought if people are getting undersized pulleys made, why not rais= e a=20 flange on both sides and cut the tooth pattern in it? This would be very=20 reliable and would allow 2 pickups for redundancy. The patterns could be cut= at=20 the same angle or 180=B0 or whatever angle allowed the easiest mounting of a= =20 second pickup.
Bill Jepson
-------------------------------1150434554--