---------------------------------------------------------- Yak-List Digest Archive --- Total Messages Posted Mon 05/03/21: 1 ---------------------------------------------------------- Today's Message Index: ---------------------- 1. 07:53 AM - Re: HS6, M14P,etc. valve adjustment. (Justin Drafts) ________________________________ Message 1 _____________________________________ Time: 07:53:53 AM PST US From: Justin Drafts Subject: Re: Yak-List: HS6, M14P,etc. valve adjustment. Excellent background, thanks for the research, much appreciated. This is on my hangar mx agenda for today... Justin On Sun, May 2, 2021 at 10:19 PM Walter Lannon wrote: > Checked the P&W Mtce manual today. exactly the same info as the > Overhaul. No reference to any subject torque value. > > Also checked FAA AC 65-12, with a very comprehensive and detailed section > on valve systems and processes including numerous pages on adjustment. > They make no specific recommendations on torque values for adjustment > nuts. They do make a reference to fastener torque in general stating that > the manufacturers recommendations are to be followed. In this they give, > as an example, the rocker cover hold down nuts used > on many radial engines. These are light aluminum alloy and there has > always been a history of over tightening, warping and subsequent leakage. > > As I mentioned earlier the jamb nut securing method has been around > forever and is highly effective. The prime example of this is two plain > nuts tightened to each other on a threaded shaft, bolt or similar. In this > case the rocker arm serves as the second nut. > > My diatribe for the day !!!!!!! > Walt > ------------------------------------------------------------------------------------- Other Matronics Email List Services ------------------------------------------------------------------------------------- Post A New Message yak-list@matronics.com UN/SUBSCRIBE http://www.matronics.com/subscription List FAQ http://www.matronics.com/FAQ/Yak-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/yak-list Browse Digests http://www.matronics.com/digest/yak-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.