Hi Graeme, If I read it correctly, you haven't fitted the spinner backplate to the front face of the engine prop flange yet ? Bolt the spinner backplate on. The spinner backplate is about 1'' deep, shim that with 3 mixing sticks between the rear of the spinner backplate to the front of the cowl, there is your overlap onto the fuselage ! I use a similar process to Bud, tape the fuselage with masking tape.Mark a line at the fuselage joggle of the cowl line edge and use a flexi ruler or similar spline,to mark a line paralell to the joggle line the width of the ruler aft. Fit the top cowl with the 3 mix sticks shim between the cowl and back of the spinner backplate. Tape the aft edge of the cowl onto the fuselage, checking the bottom edge of the cowl is level [ reference the fuselage top / bottom join line if still visable, or the top of the footwells] and use the same ruler / spline to transfer the line on the fuselage forward onto the cowl..... simples ! Cheers, Nev. -----Original Message----- From: graeme bird To: europa-list Sent: Tue, 8 Mar 2011 18:58 Subject: Europa-List: Re: cowl cutting - bak edge --> Europa-List message posted by: "graeme bird" thanks Bud, I think I get the drift of most of it, one thing worries me now hough is that you mention a spinner to cowl gap of 1/8th I just don't have nough cowl to do that, I am going to end up with around 1/2". The top is esting on the shaft of the 912S prop plate butted up to the back of the prop olts and I only have 1/8th of the cowl on the port side to cut off. Is a 3/8th ap going to matter? Regards Graeme -------- raeme Bird -UMPY ono Classic/XS FWFD 912ULS/Warp drive FP uild nearing completion ead this topic online here: http://forums.matronics.com/viewtopic.php?p=333194#333194 -= - The Europa-List Email Forum - -= Use the Matronics List Features Navigator to browse -= the many List utilities such as List Un/Subscription, -= Archive Search & Download, 7-Day Browse, Chat, FAQ, -= Photoshare, and much much more: -= -= --> http://www.matronics.com/Navigator?Europa-List -= -========================-= - MATRONICS WEB FORUMS - -= Same great content also available via the Web Forums! -= -= --> http://forums.matronics.com -= -========================-= - List Contribution Web Site - -= Thank you for your generous support! -= -Matt Dralle, List Admin. -= --> http://www.matronics.com/contribution -========================