---------------------------------------------------------- Pietenpol-List Digest Archive --- Total Messages Posted Thu 11/01/18: 3 ---------------------------------------------------------- Today's Message Index: ---------------------- 0. 04:14 AM - PLEASE READ - Matronics Email List 2018 Fund Raiser During November! (Matt Dralle) 1. 05:29 PM - Ford Oil Leaks and Seals (John C Black) 2. 08:22 PM - Re: Ford Oil Leaks and Seals (taildrags) ________________________________ Message 0 _____________________________________ Time: 04:14:45 AM PST US From: Matt Dralle Subject: Pietenpol-List: PLEASE READ - Matronics Email List 2018 Fund Raiser During November! Dear Listers, Each November I hold a PBS-like fund raiser to support the continued operation and upgrade of the Email List and Fourm Services at Matronics. It's solely through the Contributions of List members (you) that these Matronics Lists are possible. You have probably noticed that there are no banner ads or pop-up windows on any of the Matronics Lists or related web sites such as the Forums site http://forums.matronics.com , Wiki site http://wiki.matronics.com , or other related pages such as the List Search Engine http://www.matronics.com/search , List Browse http://www.matronics.com/listbrowse , etc. This is because I believe in a List experience that is completely about the sport we all enjoy - namely Airplanes and not about annoying advertisements. During the month of November I will be sending out List messages every couple of days reminding everyone that the Fund Raiser is underway. I ask for your patience and understanding during the Fund Raiser and throughout these regular messages. The Fund Raiser is only financial support mechanism I have to pay all of the bills associated with running these lists. YOUR personal Contribution counts! This year we have a really HUGE and TERRIFIC line up of free gifts to go along with the various Contribution levels. In fact, there are 9 great gifts to choose from! There's something for everyone, to be sure. Please make your List Contribution using any one of three secure methods including using a Credit Card, PayPal, or by Personal Check. All three methods afford you the opportunity to select one of this year's free gifts with a qualifying Contribution amount!! To make your Contribution, please visit the secure web site: http://www.matronics.com/contribution I would like to thank everyone in advance for their generous financial AND moral support over the years! Thank you! Matt Dralle Matronics Email List Administrator RV-4/RV-6/RV-8 Builder/Rebuilder/Pilot ________________________________ Message 1 _____________________________________ Time: 05:29:29 PM PST US From: John C Black Subject: Pietenpol-List: Ford Oil Leaks and Seals Hi, I am rebuilding a Model B engine for my Pietenpol. Every Model A/B that I know about leaks oil at the rear oil seal. I am thinking of using a modern rear oil seal like the small block Chevrolet V-8 kit that Dan McEachern offers for Model A/B's. Has anyone used a moden rear oil seal ? Did it stop the oil leaks ? Any guidance is appreciated. John La Conner, WA ________________________________ Message 2 _____________________________________ Time: 08:22:42 PM PST US Subject: Pietenpol-List: Re: Ford Oil Leaks and Seals From: "taildrags" John; I know nothing about the Ford A/B engines or how their seals are configured but I do have some experience with oil seal leaks at the front main seal (propeller end) of my Continental A75. The leaking occurred after a complete overhaul of the engine, including sending the crank off to Aircraft Specialties Services or someplace like that for a complete reconditioning. Once I traced the source of the leak, I ordered a new seal and it came with instructions... Continental Service Bulletin M76-4, attached. I determined that my crank had not been prepared as per the service bulletin, in that the plating had not been polished off in the area that the seal contacts, nor had the helical 'scratches' been made on the area in question. Apparently, the helical scratches impart a screwing motion that "screws" the oil back behind the seal as the engine runs. When the engine is sitting and the oil is cold, it's thick enough where it doesn't tend to leak past the seal but when it's warm and under pressure is when it wants to seep out and the screwing effect helps. My engine now runs bone-dry at the seal. This may be completely contrary to Ford engine practice and small-block Chevy engine practice, but it has worked on my Continental and it probably turns roughly the same RPM as a Ford, if that matters. I offer this only as food for thought, and am also wondering if anyone out there has tried this crank prep technique for a Ford rear seal. -------- Oscar Zuniga Medford, OR Air Camper NX41CC "Scout" A75 power, 72x36 Culver prop Read this topic online here: http://forums.matronics.com/viewtopic.php?p=484237#484237 Attachments: http://forums.matronics.com//files/continentalsb_m76_4_453.pdf ------------------------------------------------------------------------------------- Other Matronics Email List Services ------------------------------------------------------------------------------------- Post A New Message pietenpol-list@matronics.com UN/SUBSCRIBE http://www.matronics.com/subscription List FAQ http://www.matronics.com/FAQ/Pietenpol-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/pietenpol-list Browse Digests http://www.matronics.com/digest/pietenpol-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.