---------------------------------------------------------- LycomingEngines-List Digest Archive --- Total Messages Posted Thu 04/24/08: 4 ---------------------------------------------------------- Today's Message Index: ---------------------- 1. 05:36 AM - Wiggly Cotter pins (Ralph E. Capen) 2. 08:12 AM - Re: Wiggly Cotter pins (manuel weber) 3. 09:13 AM - Re: Wiggly Cotter pins (JACK STEELE) 4. 05:46 PM - Re: Wiggly Cotter pins (Indran Chelvanayagam) ________________________________ Message 1 _____________________________________ Time: 05:36:52 AM PST US From: "Ralph E. Capen" Subject: LycomingEngines-List: Wiggly Cotter pins One of my four engine mount bolt cotter pins wiggles a bit - it is set like the other three. I've re-done it a bunch of times - so either it is technique for this particular bolt...or there's something wrong with the setup. I'm using the same size pin for all four bolts. I'm really thinking it is my technique. According to the 43.13 the head should fit snug - which I take to mean that they shouldn't wiggle. Conceptually, I think the wiggling could lead to friction erosion of the pin - with a potential for failure. Maybe, I need to do this one using the other method for setting them - I've been trying to bend one leg over the top and the other down - I may try the 'anchor' method as shown in the 43.13. Somebody tell me that I'm not out of my mind with my anal-retentiveness..... Ralph Capen RV6AQB Slider N822AR @ N06 Knocking out the million little things..... ________________________________ Message 2 _____________________________________ Time: 08:12:04 AM PST US From: manuel weber Subject: Re: LycomingEngines-List: Wiggly Cotter pins Sorry Ralph, can't vouch for your sanity !! If you really need this cotter pin to quit wiggling...try adding another washer under the nut to cause the bottom of the slot in the castle nut to be more in line with, or alittle higher than the hole drilled in the bolt. I've seen that when the hole is alittle high in the slot of the castle nut, that it can be difficult to secure the cotter pin from wiggling....especially with the larger cotter pins. Manny "Ralph E. Capen" wrote: One of my four engine mount bolt cotter pins wiggles a bit - it is set like the other three. I've re-done it a bunch of times - so either it is technique for this particular bolt...or there's something wrong with the setup. I'm using the same size pin for all four bolts. I'm really thinking it is my technique. According to the 43.13 the head should fit snug - which I take to mean that they shouldn't wiggle. Conceptually, I think the wiggling could lead to friction erosion of the pin - with a potential for failure. Maybe, I need to do this one using the other method for setting them - I've been trying to bend one leg over the top and the other down - I may try the 'anchor' method as shown in the 43.13. Somebody tell me that I'm not out of my mind with my anal-retentiveness..... Ralph Capen RV6AQB Slider N822AR @ N06 Knocking out the million little things..... --------------------------------- Be a better friend, newshound, and know-it-all with Yahoo! Mobile. Try it now. ________________________________ Message 3 _____________________________________ Time: 09:13:25 AM PST US From: "JACK STEELE" Subject: Re: LycomingEngines-List: Wiggly Cotter pins Ralph. quit worrying. if the loose cotter pin is a bother put a drop of crazy glue on it. It wont wiggle and it will keep on doing its job/ JC ----- Original Message ----- From: manuel weber To: lycomingengines-list@matronics.com Sent: Thursday, April 24, 2008 11:08 AM Subject: Re: LycomingEngines-List: Wiggly Cotter pins Sorry Ralph, can't vouch for your sanity !! If you really need this cotter pin to quit wiggling...try adding another washer under the nut to cause the bottom of the slot in the castle nut to be more in line with, or alittle higher than the hole drilled in the bolt. I've seen that when the hole is alittle high in the slot of the castle nut, that it can be difficult to secure the cotter pin from wiggling....especially with the larger cotter pins. Manny "Ralph E. Capen" wrote: One of my four engine mount bolt cotter pins wiggles a bit - it is set like the other three. I've re-done it a bunch of times - so either it is ------------------------------------------------------------------------- --- Be a better friend, newshound, and ________________________________ Message 4 _____________________________________ Time: 05:46:02 PM PST US From: Indran Chelvanayagam Subject: Re: LycomingEngines-List: Wiggly Cotter pins No - you're not out of your mind. My LAME (Aussie terminology for A&P) said that my wiggly pins needed to be fixed - either installing next size up, or using a dab of silicone RTV (but not too much to obscure visibility) Indran On 24/04/2008, at 8:33 PM, Ralph E. Capen wrote: > > > > One of my four engine mount bolt cotter pins wiggles a bit - it is > set like the other three. > > I've re-done it a bunch of times - so either it is technique for > this particular bolt...or there's something wrong with the setup. > I'm using the same size pin for all four bolts. I'm really thinking > it is my technique. > > According to the 43.13 the head should fit snug - which I take to > mean that they shouldn't wiggle. Conceptually, I think the wiggling > could lead to friction erosion of the pin - with a potential for > failure. > > Maybe, I need to do this one using the other method for setting them > - I've been trying to bend one leg over the top and the other down - > I may try the 'anchor' method as shown in the 43.13. > > Somebody tell me that I'm not out of my mind with my anal- > retentiveness..... > > Ralph Capen > RV6AQB Slider N822AR @ N06 > Knocking out the million little things..... > > ------------------------------------------------------------------------------------- Other Matronics Email List Services ------------------------------------------------------------------------------------- Post A New Message lycomingengines-list@matronics.com UN/SUBSCRIBE http://www.matronics.com/subscription List FAQ http://www.matronics.com/FAQ/LycomingEngines-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/lycomingengines-list Browse Digests http://www.matronics.com/digest/lycomingengines-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.