Return-Path: Received: from arl-img-10.compuserve.com ([149.174.217.140]) by truman.olsusa.com (Post.Office MTA v3.5.1 release 219 ID# 0-52269U2500L250S0V35) with ESMTP id com for ; Fri, 28 May 1999 11:53:42 -0400 Received: (from mailgate@localhost) by arl-img-10.compuserve.com (8.8.6/8.8.6/2.18) id LAA10740 for Lancair.list@olsusa.com; Fri, 28 May 1999 11:56:27 -0400 (EDT) Date: Fri, 28 May 1999 11:55:27 -0400 From: Lynda Frantz Subject: Rough Engine IO-320 and 360 with RSA throttle body Sender: Lynda Frantz To: Marve Kay Message-ID: <199905281155_MC2-7765-CEF@compuserve.com> Mime-Version: 1.0 Content-Type: text/plain; charset=ISO-8859-1 Content-Disposition: inline X-Mailing-List: lancair.list@olsusa.com <<<<<<<<<<<<<<<<--->>>>>>>>>>>>>>>> << Lancair Builders' Mail List >> <<<<<<<<<<<<<<<<--->>>>>>>>>>>>>>>> >> You mentioned that you found some contaminant in the injector nozzles. Based upon my experience you may continue to have injector nozzle problems for several more hours. Watch the EGTs for changes in peak temps one compared to the other. Changes indicate more injector nozel contaminants. Also check the throttle body fuel screen frequently until no contaminant is found and then every 50 hours in accordance with the manufactures recommendation p362 LNN Issue 28. A complete clogging of one nozzle may cause an engine stoppage due to an over rich condition in the remaining cylinders which can be corrected by using the mixture and leaning for the three cylinder condition. It is natural and correct when experiencing engine roughness and stoppage to richen the mixture. However, in the event of a 100% clogged nozzle and resulting engine stoppage, leaning is the only remedy that will result in a restart. Watch for this situation. A high percentage of the low time Lancair incidents 320/360 and IV are a result of fuel contaminant problems. There is an article about this subject in the Lancair Network News page 361 Issue #28. Jim Frantz >>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>> LML homepage: http://www.olsusa.com/Users/Mkaye/maillist.html