---------------------------------------------------------- Continental-List Digest Archive --- Total Messages Posted Tue 03/08/11: 4 ---------------------------------------------------------- Today's Message Index: ---------------------- 1. 05:50 AM - Re: A-65 rebuild (Tommy Walker) 2. 05:55 AM - Re: Re: A-65 rebuild (Tommy Walker) 3. 07:38 AM - Re: Re: A-65 rebuild (Monty Barrett Sr) 4. 02:52 PM - Re: Re: A-65 rebuild (Deems Herring) ________________________________ Message 1 _____________________________________ Time: 05:50:01 AM PST US Subject: Continental-List: Re: A-65 rebuild From: "Tommy Walker" All, the crank was tested at a well known service shop in Tulsa. I trust their findings, so I'm going to search for rebuilt or new crank. I've had prices of 3100 and 2800 for new, so that's probably where I'm headed unless a good deal on a used one pops up. While the engine is going in an experimental, I don't want to trust anything to chance as far as the engine goes. I just got bit on this used O200 purchase. Thanks, there's a lot of good information on the posts here. You guys have lots more information that I hope to access (one question at a time as suggested by Randy :) ). -------- Tommy Walker N8701 - Anniston, AL Read this topic online here: http://forums.matronics.com/viewtopic.php?p=333152#333152 ________________________________ Message 2 _____________________________________ Time: 05:55:03 AM PST US Subject: Re: Continental-List: Re: A-65 rebuild From: Tommy Walker Deems, I'm the one building the O200. Dave is building an A65. Looking for a crank. Thanks, Tommy On Mon, Mar 7, 2011 at 8:16 PM, Deems Herring wrote: > Tommy, did I miss something? are you rebuilding an A-65 or an O-200? > > The problem with the original cylinders is the threads where the liner > threads into the head. If you didn't know the steel liners are threaded at > the top and they screw into the aluminum heads. the way the threads are made > in the aluminum of the old style cylinders creates a stress concentration > point and the cylinders crack at the end of the threads and it is possible > for the head to separate from the rest of the cylinder. The newer style > cylinders have a different thread design. This is different from the > cracking in the area of the valves which all small continentals are > susceptible too and which can be repaired but do not expect repaired heads > to last as long as they did before the repair. I would not consider head > repairs on cylinders you do not have a 100% accurate history on. Here are > some pictures of the kind of cracks that lead to separation: > http://www.sacskyranch.com/eng82.htm and here is another place with good > information on the O-200. > > Deems > > > > From: n4546v@mindspring.com > > > To: continental-list@matronics.com > > Subject: Re: Continental-List: Re: A-65 rebuild > > Date: Sun, 6 Mar 2011 19:53:52 -0800 > > > > n4546v@mindspring.com> > > > > Hello Tommy: > > > > Yes, I am on most of the ZA lists. We have corresponded before. > > > > The following contains many facts and a lot of my opinions. It is worth > > exactly what you are paying for it. > > > > If you have a O-200 that is used in a certified aircraft, with original > > Continental cylinders identified by casting numbers, they are subject to > > cylinder head cracking. > > * > > > * > > ________________________________ Message 3 _____________________________________ Time: 07:38:10 AM PST US Subject: RE: Continental-List: Re: A-65 rebuild From: "Monty Barrett Sr" Tommy, No sir. I do not have one. Try Aircraft Specialties Services, 918-836-6872. Ask for Harold or Greg. IF they don't have one try Aircraft Engine and Accessories in Dallas. Sorry I don't have their phone number butit shouldn't be hard to find. Monty B. -----Original Message----- From: owner-continental-list-server@matronics.com [mailto:owner-continental-list-server@matronics.com] On Behalf Of Tommy Walker Sent: Monday, March 07, 2011 4:32 PM To: continental-list@matronics.com Subject: Re: Continental-List: Re: A-65 rebuild I would probably pay $2100.00 for a certified crank. I was quoted 2814.00 for a new one today. That's not bad (relative term) either. You got one Monty? Tommy On Mon, Mar 7, 2011 at 2:47 PM, Monty Barrett Sr wrote: Sr" Hey, Man, A cracked flange is a serious defect. I wouldn't mess with it 1/2 second. Fixing something in a race car shop is a whole bunch different than fixing something for an aircraft. 3 or 4 reasons readily come to mind. 1. Race car can just pull into the pits. 2. The materials may be and probably are different. The 0-200 crankshaft is forged from AISI 4340, not the best welding material in the world. Too much carbon in the base metal and it's nitrided. 3. Do you have any idea what happens with control issues introduced when you sling a prop off ? 4. How much is your safety worth ? A serviceable tagged crankshaft from a reputable shop would probably cost $2100 or so. Monty Barrett Barrett Precision Engines, Inc. Over 40 years in the aircraft engine business. -----Original Message----- From: owner-continental-list-server@matronics.com [mailto:owner-continental-list-server@matronics.com] On Behalf Of Randy L. Thwing Sent: Monday, March 07, 2011 1:11 PM To: continental-list@matronics.com Subject: Re: Continental-List: Re: A-65 rebuild Thwing" --> do not archive Tommy: I'm sure the news about it being "unrepairable" is for Certified use. For experimental use, you could repair in any manner. Now, I'm not saying to be slipshod and unsafe, but put out the word of what the damage is and seek help. Go to your local race engine shop for opinions. There may be a very safe way to reapir this, just not FAA approved. But that's one very good reason to go experimental, to get OUT of the certified business. OK the flange is cracked, how's the rest of it? Journal conditions, straightness? Good Luck, Randy, Las Vegas ----- Original Message ----- From: "Tommy Walker" To: Sent: Monday, March 07, 2011 9:26 AM Subject: Continental-List: Re: A-65 rebuild > > > Randy, thanks for the valuable information. > > However, I just got hit with some bad news this morning. The flange > on my > O200 crank is cracked and not repairable. So, it is back to square one > for me. I hate to throw away my investment in this engine, so I am > searching for a replacement. > > Anyone have a lead on a crank? > > Thanks, > > Tommy Walker in Alabama > > -------- > Tommy Walker > N8701 - Anniston, AL > > > > > Read this topic online here: > > http://forums.matronics.com/viewtopic.php?p=333063#333063 > > > > > > > > > > ------------------------------------------------------------------------ -------- Checked by AVG - www.avg.com 07:34:00 ========== List" target="_blank">http://www.matronics.com/Navigator?Continental-List ========== http://forums.matronics.com ========== le, List Admin. ="_blank">http://www.matronics.com/contribution ========== ________________________________ Message 4 _____________________________________ Time: 02:52:19 PM PST US From: Deems Herring Subject: RE: Continental-List: Re: A-65 rebuild Sorry Tommy I guess I got lost with the subject line. Try here: http://www.barnstormers.com/index.php and do a couple of searches for Continental or O-200=2C Tom Romanchik should have some ads there. All I know about him is that I have purchased a few O-200 parts from him and th ey have been as described and fairly priced=2C not cheap. YMMV Good hunting. Deems Subject: Re: Continental-List: Re: A-65 rebuild From: twalker@cableone.net Deems=2C I'm the one building the O200. Dave is building an A65. Looking for a crank. Thanks=2C Tommy On Mon=2C Mar 7=2C 2011 at 8:16 PM=2C Deems Herring wrote: Tommy=2C did I miss something? are you rebuilding an A-65 or an O-200? The problem with the original cylinders ------------------------------------------------------------------------------------- Other Matronics Email List Services ------------------------------------------------------------------------------------- Post A New Message continental-list@matronics.com UN/SUBSCRIBE http://www.matronics.com/subscription List FAQ http://www.matronics.com/FAQ/Continental-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/continental-list Browse Digests http://www.matronics.com/digest/continental-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.