Return-Path: Received: from mail22.syd.optusnet.com.au ([211.29.133.160] verified) by logan.com (CommuniGate Pro SMTP 4.3c3) with ESMTP-TLS id 828313 for flyrotary@lancaironline.net; Tue, 29 Mar 2005 01:25:43 -0500 Received-SPF: none receiver=logan.com; client-ip=211.29.133.160; envelope-from=lendich@optusnet.com.au Received: from george (d211-31-199-98.dsl.nsw.optusnet.com.au [211.31.199.98]) by mail22.syd.optusnet.com.au (8.12.11/8.12.11) with SMTP id j2T6OmfJ031607 for ; Tue, 29 Mar 2005 16:24:53 +1000 Message-ID: <001901c53428$79f82950$62c71fd3@george> From: "George Lendich" To: "Rotary motors in aircraft" References: Subject: Re: [FlyRotary] under drive pulleys Date: Tue, 29 Mar 2005 16:28:06 +1000 MIME-Version: 1.0 Content-Type: multipart/alternative; boundary="----=_NextPart_000_0016_01C5347C.49706960" X-Priority: 3 X-MSMail-Priority: Normal X-Mailer: Microsoft Outlook Express 6.00.2800.1106 X-MimeOLE: Produced By Microsoft MimeOLE V6.00.2800.1106 This is a multi-part message in MIME format. ------=_NextPart_000_0016_01C5347C.49706960 Content-Type: text/plain; charset="iso-8859-1" Content-Transfer-Encoding: quoted-printable Kevin, I don't think you could get them made any cheaper. I will keep this info for later-on.=20 George ( down under) I spoke with a machine shop friend today about making pulleys. He = shows me his Mazda race car with a 400hp PP 13B, which I didn't know he = had. He believes that a single pulley with a deep groove should work = fine, and that yes, often one belt will take out the redundant belt. He = runs his engine up to 9800rpm without belt problems. His pulleys are 5 = 1/8 on the water pump, 3 1/2 drive, which just about touch. He can make = us sets for $110, a bit more for double pulleys. He has an automatic = tool changing mill with something like 27 tools available on this giant = chain. It is way cool to watch run. Pulleys get made on the lathe = however. AL comes in 5 and 5 1/2" sizes, so a 5" pulley may be a better = buy than 5 1/8". He would make the pulleys to order, not as batches, so = a 17 or 19mm center hole is no problem. I wondered how many people were = interested in getting some made. I have not seen any for sale at these = prices, although I may have missed some. I saw some sets as high as = $350. Kevin Lane Portland, OR e-mail-> n3773@comcast.net ------=_NextPart_000_0016_01C5347C.49706960 Content-Type: text/html; charset="iso-8859-1" Content-Transfer-Encoding: quoted-printable

Kevin,

I don't think you could get them made = any=20 cheaper.

I will keep this info for later-on. =

George ( down under)

I spoke with a machine shop = friend=20 today about making pulleys. He shows me his Mazda race car with = a 400hp=20 PP 13B, which I didn't know he had. He believes that a single = pulley=20 with a deep groove should work fine, and that yes, often one belt will = take=20 out the redundant belt. He runs his engine up to 9800rpm without = belt=20 problems. His pulleys are 5 1/8 on the water pump, 3 1/2 drive, = which=20 just about touch. He can make us sets for $110, a bit more for = double=20 pulleys. He has an automatic tool changing mill with something = like 27=20 tools available on this giant chain. It is way cool to watch = run. =20 Pulleys get made on the lathe however. AL comes in 5 and 5 1/2" = sizes,=20 so a 5" pulley may be a better buy than 5 1/8". He would make = the=20 pulleys to order, not as batches, so a 17 or 19mm center hole is no=20 problem. I wondered how many people were interested in getting = some=20 made. I have not seen any for sale at these prices, although I = may have=20 missed some. I saw some sets as high as $350.

Kevin Lane Portland,=20 OR
e-mail-> n3773@comcast.net
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