Another thing is the difference if you were using a breaker bar versus an air impact wrench. The impact wrench sits there and hammers and and surges and some of its output torque is absorbed and dissipated due to the rotational flexing of the extension each time the wrench hits it. If it were a perfect mechanical device (no friction or heat losses) the energy it absorbs would be returned each time the shaft bounced back but when theres friction and flexing involved I bet there are some wasted heat losses??? With a breaker bar (no surging pulsing and bouncing ) the extension can still flex, but once you turn it to its elastic limit if all was at 90 degrees, after that torque in should equal torque out Id guess?? But hey Im an electrical NOT a mechanical or structural engineer NO WARRANT MAY BE RIGHT OR WRONG AS RAIN LOL
Re: long ratchet extensions in reply to John T, 12-18-2013 19:02:47
Hello John T,
I guess we stole the thread! Anyhow torque values are not up for debate, it is not theory, its simple math. Torque wrench length X torque desired / torque wrench length = torque applied. Changing the torque wrench length, will change torque applied period!
Re: long ratchet extensions in reply to GUIDO, 12-19-2013 06:49:17
Quoting Removed, click Modern View to see
Yes, It will change the torque applied period! Then the torque wrench will still measure the tourque and the fastener and the parts and the mechanic and owner will all be happy. You can even put a six year old grand daughter on the wrench with a cheater, and she, (with a little guidance and perhaps help holding the head of the wrench) will be able to apply proper torque to a 5/8 bolt.
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