---------------------------------------------------------- Engines-List Digest Archive --- Total Messages Posted Fri 02/23/07: 3 ---------------------------------------------------------- Today's Message Index: ---------------------- 1. 05:48 AM - Lycoming Experts (GENTRYLL@aol.com) 2. 07:54 AM - Re: Lycoming Experts (Monty Barrett Sr) 3. 05:21 PM - Re: Lycoming Experts (jrc) ________________________________ Message 1 _____________________________________ Time: 05:48:18 AM PST US From: GENTRYLL@aol.com Subject: Engines-List: Lycoming Experts Would some of you guys that know a lot about Lycomings explain what some of the engines have in common. Like the O-235, O-290, O-320. You see things on the net like O-290 converted to O-320, How is that done. What crankshafts some of the engines share. What cylinders are interchangeable. I have read that some of the engines such as the O-290 and O-435 share common cylinders, jut more of them.


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AOL now offers free email to everyone. Find out more about what's free from AOL at http://www.aol.com. ________________________________ Message 2 _____________________________________ Time: 07:54:16 AM PST US Subject: RE: Engines-List: Lycoming Experts From: "Monty Barrett Sr" Some cylinders interchange: Parallel valve 360-540, WD to WD, ND to ND Angle head 360 to 540 t0 720, WD to WD, ND to ND AH 480 cyls will fit 320 but other considerations are required 290's will NOT convert o 320 sucessfully. If you throw enough money at it I suppose it could happen 235 C engines will not successfully convert to later series, such as L2C, F2C, BUT I have done it specifically for 1 airplane. Not approved. It is the Knight Twister that won best plans built airplane at OSH about 4 years ago. Built by Hale Wallace. Hale stated he wanted 130 HP at 3000 RPM and I got it. Used 0-235-F2C cylinder assemblies on 0-235 C cases, machined cases for 7/16 TCM thrubolts. 0-320 can be and have been converted to 360's many times. Expensive because of the crank and rods required. But it is relatively easy from the standpoint of assembly. Almost any 0- engine can be converted to I0. Need to have the fuel pump drive. These are brief highlights. Not meant to be a conversion manual. Use at your own risk. Monty Barrett -----Original Message----- From: owner-engines-list-server@matronics.com [mailto:owner-engines-list-server@matronics.com] On Behalf Of GENTRYLL@aol.com Sent: Friday, February 23, 2007 7:47 AM Subject: Engines-List: Lycoming Experts Would some of you guys that know a lot about Lycomings explain what some of the engines have in common. Like the O-235, O-290, O-320. You see things on the net like O-290 converted to O-320, How is that done. What crankshafts some of the engines share. What cylinders are interchangeable. I have read that some of the engines such as the O-290 and O-435 share common cylinders, jut more of them. ________________________________ AOL now offers free email to everyone. Find out more about what's f241x4298082137/aol?redir=http://www.aol.com" l ?redir=http%3A%2F%2Fwww%2Eaol%2Ecom" target="_blank">AOL.com. ________________________________ Message 3 _____________________________________ Time: 05:21:55 PM PST US From: "jrc" Subject: Re: Engines-List: Lycoming Experts http://home.adelphia.net/~aeroengine/Lycoming.html ----- Original Message ----- From: GENTRYLL@aol.com To: engines-list@matronics.com Sent: Friday, February 23, 2007 7:47 AM Subject: Engines-List: Lycoming Experts Would some of you guys that know a lot about Lycomings explain what some of the engines have in common. Like the O-235, O-290, O-320. You see things on the net like O-290 converted to O-320, How is that done. What crankshafts some of the engines share. What cylinders are interchangeable. I have read that some of the engines such as the O-290 and O-435 share common cylinders, jut more of them. ------------------------------------------------------------------------- ----- AOL now offers free email to everyone. Find out more about what's f241x4298082137/aol?redir=http://www.aol.com" l?redir=http%3A%2F%2Fwww%2Eaol%2Ecom" target="_blank">AOL.com. ------------------------------------------------------------------------------------- Other Matronics Email List Services ------------------------------------------------------------------------------------- Post A New Message engines-list@matronics.com UN/SUBSCRIBE http://www.matronics.com/subscription List FAQ http://www.matronics.com/FAQ/Engines-List.htm Web Forum Interface To Lists http://forums.matronics.com Matronics List Wiki http://wiki.matronics.com Full Archive Search Engine http://www.matronics.com/search 7-Day List Browse http://www.matronics.com/browse/engines-list Browse Digests http://www.matronics.com/digest/engines-list Browse Other Lists http://www.matronics.com/browse Live Online Chat! http://www.matronics.com/chat Archive Downloading http://www.matronics.com/archives Photo Share http://www.matronics.com/photoshare Other Email Lists http://www.matronics.com/emaillists Contributions http://www.matronics.com/contribution ------------------------------------------------------------------------------------- These Email List Services are sponsored solely by Matronics and through the generous Contributions of its members.