Return-Path: Received: from marvkaye.olsusa.com (max1-dailup-11.olsusa.com [205.245.9.80]) by truman.olsusa.com (Post.Office MTA v3.5.1 release 219 ID# 0-52269U2500L250S0V35) with SMTP id com for ; Sat, 13 Feb 1999 16:59:10 -0500 Message-Id: <3.0.3.32.19990213165809.02d5b874@olsusa.com> Date: Sat, 13 Feb 1999 16:58:09 -0500 To: lancair.list@olsusa.com From: Marvin Kaye Subject: Re: 360 engine mount In-Reply-To: X-Mailing-List: lancair.list@olsusa.com Mime-Version: 1.0 <<<<<<<<<<<<<<<<--->>>>>>>>>>>>>>>> << Lancair Builders' Mail List >> <<<<<<<<<<<<<<<<--->>>>>>>>>>>>>>>> >> Rob Terry... you should probably use a reamer to open the sockets in the engine mount to accept the AN7-23A bolts which came with the kit. If you contact a local machine tool supply house they can provide you with the proper tool, and you might want to specify an extra couple thousandths of an inch clearance in the process (ie, order reamer for 0.440 inches instead of exactly 0.4375.) Don't use a drill bit to open up the holes if you can help it, as it will not open them up exactly round as a reamer will. (If you can't find a reamer locally, a very good friend of mine runs a tooling supply company called Swift Saw & Tool, you can reach him at 708-335-0550, ask for Paul Kawka and tell him I told you to call. Get their catalog as well.) Additionally, if you're concerned about puckering the ss firewall you'll want to build in some phenolic standoffs for all the bolts that go through it. (I know, this is considered overkill by many, but it is a viable option to simply compressing the fiberfrax and denting the stainless.) Check out the photos submitted by Chris Zavatson on 12/2/98 on the LML homepage Attachments section (http://www.olsusa.com/Users/Mkaye/maillist.html#attach) which show how he went about performing this operation. I know this is more than you asked, but it should answer your question about whether or not you can mount the nosewheel before installing the SS firewall. In a nutshell, it is important that you determine the actual mounting position of the mount pads, as how far forward they are from the plywood firewall will determine the ultimate angle of your nosegear strut. If you don't plan on their final location you will not be able to hit that 8 degree forward rake that is called out in the manual. (Myron Oakley is planning on producing steel o/c links in the future which will incorporate an adjustable rod end to the nose gear strut to allow for final adjustment of the strut angle. He will advise us when these parts are going to be made available.) I hope this helps you out.