Safety Wire
Fleet Mechanic
Joined: Jul 2004
Posts: 1,988
Likes: 14
From: Travelers Rest SC
Safety wire is for nuts and bolts that have a hole drilled in them. Wire is threaded through the hole and twisted shut, so that the nut can't come off. It's basically the same idea as the cotter pins used in tie rod ends, etc.
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Fleet Owner
Joined: Mar 2003
Posts: 24,724
Likes: 74
From: Blue Hill Township
Interesting. I found this link about it. http://marrc.nova.org/html_docs/rrs....ep.html#wiring
Where would one typically wire stuff on a vehicle? Is it needed on a street driven car?
Where would one typically wire stuff on a vehicle? Is it needed on a street driven car?
Hotshot
Joined: Oct 2002
Posts: 18,488
Likes: 22
From: The Big, Oregon
The factory hubs on -some- trucks had safety wired bolts. At least, the Ford stamped bolts on a front axle I had from a 77 F250 had lockwire, and got lockwired when I put them back together. It's pretty outdated now, with chemical threadlockers and all, but it does withstand vibration very well, and is still used on several military and industrial applications..
Posting Legend
Joined: Sep 2001
Posts: 30,255
Likes: 37
Safety wire is extensively used in all forms of racing. In racing it is bad enuf when a fastener comes loose on your vehicle but that loose fastener bouncing around on the track turns deadly to the other racers (officials and spectators) on the course. Safety wire may be useful with header bolts and an occasional special fastener (as above) but for the most part is not used on a daily driver.
Cargo Master
Joined: Jul 2006
Posts: 3,014
Likes: 91
From: Concord, CA
Originally Posted by MisterCMK
Interesting. I found this link about it. http://marrc.nova.org/html_docs/rrs.bikeprep.html#wiring
Where would one typically wire stuff on a vehicle? Is it needed on a street driven car?
Where would one typically wire stuff on a vehicle? Is it needed on a street driven car?
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Posting Guru
Joined: Sep 2004
Posts: 1,119
Likes: 0
From: Hamilton, MT
Safety wire......that and ductape(j/k) is what we used to keep the F-16's flying lol. I dont miss that for sure.
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Joined: Sep 2000
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From: Southern California
Are you guys allowed to use the braided lock wire with the crimped bullet ends on aviation engines and airframes? GE authorizes us to use it on our avation engine. But it's a stationary generator so it's classed as an aeroderivitive.
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Post Fiend
Joined: Dec 2003
Posts: 6,658
Likes: 4
From: "Islander"
Originally Posted by dffay
The routing is the important factor.
will frown on any other way other than by the book, FAR 43.13.
Elder User
Joined: Dec 2003
Posts: 531
Likes: 1
From: New Mexico
FAR is Frequently Abused Rules.
They are usually also pretty good about the gauge and make-up of the wire. For instance, the door hinges on OH-58's call for a soft metallic wire that is light gauge. The hardware won't vibrate loose but in case of a crash, the pilot and crew can kick there way out of the cockpit. Heavy duty stainless wire would preclude that.
Mil-spec-aviation I suppose.
They are usually also pretty good about the gauge and make-up of the wire. For instance, the door hinges on OH-58's call for a soft metallic wire that is light gauge. The hardware won't vibrate loose but in case of a crash, the pilot and crew can kick there way out of the cockpit. Heavy duty stainless wire would preclude that.
Mil-spec-aviation I suppose.