another torque question

[jaydee]

I have what I believe is commonly called a torque adapter. It is a 9/16 box end with a short handle and 1/2 drive on the other end. It is used to torque heads on Harley Davidson. The distance from the box end to the drive is 2 inches. Is there a standard formula to get the right amount of torque with this tool?

 

[guido]

Hello jaydee, Here is the formula:

Torque wrench length X torque desires / torque wrench length + extension.
Remember that vertical socket extension do not alter torque applied only horizontal extensions do. That is why the formula has + extension in it,

Guido.

 

[greygoat]

I have 3 of those special adapters,1/2,9/16,5/8
used to remove the upper deck, from the lower
base of Wisconsin 2 cyl. engines. I need them
when the decks are worn tapered, and have to be
removed, to be bored.
Since it's a non-critical application, I've just
set the,(click type) torque wrench, about 4 Lbs
low.

 

[Owen Aaland]

If you can attach the torque 90° to the extension the torque exerted on the fastener will be very close to the reading on the wrench.

 

[jaydee]

OK thanks, I can see that because your almost back to the same length.

 

[teddy52food]

2 inches would be 1/6th. So if the torque is 60, go 50. Get the idea?

 

[Charles (in GA)]

http://norbar.com/calculators/torque-wrench-extension-calculator.aspx

Above is link to a English torque tool company that has an online calculator for this on their web site.

Remember, if you put the adapter 90 degrees to the torque wrench, there is no corrections made, only if it is straight out or some other angle.

Charles

 

[guido]

Hello teddy52food,

1/6 correction would assume that the torque wrench is 12". If that was the case the actual torque reduction should be to 51.4 Lb. foot. for A 60 lb. foot setting,

Guido.

 

[Dusty MI]

(quoted from post at 20:52:00 12/29/13) If you can attach the torque 90° to the extension the torque exerted on the fastener will be very close to the reading on the wrench.

I figured the same way.
I had a head bolt that I couldn't get a socket on, so I used a crow foot on at 90*. It worked for me.

Dusty