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Kirkham Motorsports

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Old 12-08-2020, 04:00 PM
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Remember, wire does not hold a spinner if its loose. Its a fast way to inspect before a drive. Install ia slight bit loose and then if you notice taught = GET THE HAMMER OUT!
This is correct. Safety wire isn't really strong enough to hold the spinner in place. It's just there to let you know when it's coming loose.

"Contrary to popular belief, even the best job of safety wiring will contribute virtually nothing to the task of preventing a bolt from loosening to the point where effective levels of residual stress disappear. All that safety wire can do is limit the rotation of a bolt and prevent it's physical departure."

Carrol Smith.

I make mine snug, with very little slack. Then use the pliers to bend the wire
90*. The wire kind of looks like a Z. If the spinner comes loose, it will straighten out the wire, and I'll see it.
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Old 12-08-2020, 05:01 PM
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[quote=bobcowan;1486203]This is correct. Safety wire isn't really strong enough to hold the spinner in place. It's just there to let you know when it's coming loose.

"Contrary to popular belief, even the best job of safety wiring will contribute virtually nothing to the task of preventing a bolt from loosening to the point where effective levels of residual stress disappear. All that safety wire can do is limit the rotation of a bolt and prevent it's physical departure."

Carrol Smith.


Well I guess I stand corrected and I've been following the wrong procedure these last 40+ years. I probably should contact the World's aircraft, engine and components manufacturers , lest I forget also all the Militaries Aviation and FAA ,EUSA, CAA, that Carrol Smith says and knows more than they do.

I would ask who in the *uck is Carrol Smith, but that would be adding more Kool-aid to the pitcher.

Darn Flat-earthers logic beats me every time.

PS. Chuck Yeager died yesterday. I'm glad he didn't have to read this thread.

Last edited by spdbrake; 12-08-2020 at 05:11 PM..
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Old 12-08-2020, 08:13 PM
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I would ask who in the *uck is Carrol Smith, but that would be adding more Kool-aid to the pitcher.
I'm sorry you don't know who Carroll Smith is/was. Maybe you should find out?

You could, instead, read this: https://www.racingjunk.com/news/safe...t-safety-wire/
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Old 12-09-2020, 05:12 AM
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I'm sorry you don't know who Carroll Smith is/was. Maybe you should find out?

You could, instead, read this: https://www.racingjunk.com/news/safe...t-safety-wire/
LOL, I found out Carrol Smith writes books about racing. I thought for a nano second he had some Aerospace Experience and practical knowledge.

That racing junk article is ..well.. junk. One of the ugliest and worthless safeties I've seen.

Lets agree to disagree Bob. I work in a different industry with much higher standards. If folks want loose safeties on their wheels so be it.

These are all our own hobby cars and I'll still putter around mine safetying stuff.
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Old 12-09-2020, 06:15 PM
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LOL, I found out Carrol Smith writes books about racing. I thought for a nano second he had some Aerospace Experience and practical knowledge.
That's all you learned? That he writes books? Sometimes you can't teach an old dog new tricks.

Here's something I might try tomorrow. Tighten down a spinner with a lead hammer just like before. Then see how much torque it takes to loosen it. Then start over, and see how much torque it takes to loosen it with the safety wire in place. Then see how much torque it takes to break the wire. That would be interesting.
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Old 12-09-2020, 07:04 PM
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Unfortunately, I can tell you from experience the standard gauge wire won't hold the spinner in place. Luckily it did very little damage when tire came off and it came off quickly.

Fred



Quote:
Originally Posted by bobcowan View Post
That's all you learned? That he writes books? Sometimes you can't teach an old dog new tricks.

Here's something I might try tomorrow. Tighten down a spinner with a lead hammer just like before. Then see how much torque it takes to loosen it. Then start over, and see how much torque it takes to loosen it with the safety wire in place. Then see how much torque it takes to break the wire. That would be interesting.
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Old 12-10-2020, 12:13 AM
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That's all you learned? That he writes books? Sometimes you can't teach an old dog new tricks.

Here's something I might try tomorrow. Tighten down a spinner with a lead hammer just like before. Then see how much torque it takes to loosen it. Then start over, and see how much torque it takes to loosen it with the safety wire in place. Then see how much torque it takes to break the wire. That would be interesting.
It would be very interesting to hear the results of that. Please do it.
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Old 12-08-2020, 07:10 PM
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Originally Posted by bobcowan View Post
This is correct. Safety wire isn't really strong enough to hold the spinner in place. It's just there to let you know when it's coming loose.

"Contrary to popular belief, even the best job of safety wiring will contribute virtually nothing to the task of preventing a bolt from loosening to the point where effective levels of residual stress disappear. All that safety wire can do is limit the rotation of a bolt and prevent it's physical departure."

Carrol Smith.

I make mine snug, with very little slack. Then use the pliers to bend the wire
90*. The wire kind of looks like a Z. If the spinner comes loose, it will straighten out the wire, and I'll see it.
I make my wire tight. If it holds the knock off, great, if the wire breaks that is my indicator that the knock off has started going in a direction without permission.
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