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South cental Ohio | Yes, the heading says it all LOL. I'm wondering what is the correct way to bend a cotter pin? Both tails one way? Or one tail one way and the other the opposite way? Or, is there different ways to bend them for different applications? Do you ever get one of those thoughts in your head that you just have to know the answer LOL? BTW, I am 55 years old but have never got an answer to this LOL. |
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NEOH | Yes there is a correct way to bend them. And that is the way that keeps them in there til you take them out next time. The only time i go both one way is in a situation where it would catch on something if cent the other way. But maybe i never learned how they were meant to be used either. |
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Franklinton, LA | Always remember rule #1. If it ain't broke, don't fix it. |
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Faunsdale, AL | When used in the most demanding application I know (crankshaft bearing fasteners ), they are supposed to be installed so the legs are bent up and down as you are looking down at end of fastener. The upper leg bends back across the end of the fastener and the other one bends down against the side of the nut.
However the cotter pins that come in engine kits are sometimes different from the usual ones you see. The have a "double head" arrangement so there is a second bulge just below the round head. I guess this is so the head sticks out past the flat of the castellated nut so you can grab it with pliers to get it out. A retired mechanic that posts online also recommended that the nut be turned slightly to bind the cotter pin so it cannot shake around and break. Not too bad to do on a small engine, but nearly impossible on some of the big ones. |
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Mid-Michigan | I always thought one in each direction. That's why I thought one was a little longer than the other so you could grab one at a time.
Edited by AGB 8/10/2015 17:01
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Georgetown, Kentucky | bend it about 3 directions on each side somehow so it is impossible to pull back out. I tend to do that. |
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candor ny | This was for aircraft but head in direction of rotation if a rotating aplication and bent over nut castlelation. If static one side bent down towards bolt or piece being fastened and other bent over top till flush with threads on head side. And should be tight enough they barely wiggle.
Edited by cjd12000 8/10/2015 18:07
 (fig5-76.jpeg)
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 fig5-76.jpeg (19KB - 242 downloads)
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| On suspension, I bend one over the nut and cut the other one off.
INDY |
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WI | I use the preferred method in your picture for wheel bearings. |
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Correct cotter pin bending?
