Return-Path: Received: from smtp1.mail.ctc.net ([166.82.29.1] verified) by logan.com (CommuniGate Pro SMTP 4.1.8) with ESMTP-TLS id 2918477 for flyrotary@lancaironline.net; Mon, 05 Jan 2004 18:50:28 -0500 Received: from alphasys (166-82-49-61.quickclick.ctc.net [166.82.49.61]) by smtp1.mail.ctc.net (Switch-3.1.2/Switch-3.1.0) with SMTP id i05NnswN027225 for ; Mon, 5 Jan 2004 18:49:55 -0500 (EST) From: Jim Brewer To: Rotary motors in aircraft X-Mailer: PocoMail 3.03 (1740) - Licensed Version Date: Mon, 5 Jan 2004 18:49:54 -0500 Message-ID: <200415184954.988909@alphasys> Subject: Rotors Mime-Version: 1.0 Content-Type: text/html; charset="iso-8859-1" Content-Transfer-Encoding: quoted-printable X-Sig: 34f364984102d977880250703b81027a

Guys,

Can anyone in= this group determine the rotor alloy? It is ductile cast iron.= I have two rotors that are '90 high compression rotors that have been= damaged by broken apex seals. Ed says that they are very scarce and= expensive. I would like to know if anyone has ever welded up the apex= groove and then machined the groove to 2mm and used the rotors again.= What would be the downside of buffing out grooves on the face of a= rotor? This is for an auto application NOT aircraft application.= Bottom line question: Can rotors be repaired? Piston= replacement is cheap....not so with rotors. Your input,= please.

Jim= Brewer