Re-torque propeller shaft bolt?

Look at my last post.. Google and make an informed decision but using a crows foot will chance torque value in my opinion... i use 4 foot torque wrenches at work.. adapters that lengthen are fine but crows feet change shit. I wish I could correctly inform you better but I'm drunk.

Do your research and you can figure it out pretty fast

 

Yes, you are drunk if you think that lengthening a torque wrench doesn't change the value.

https://www.norbar.com/Home/Torque-Wrench-Extension-Calculator

M1 = M2 x L1 / L2
Where:

• M1 is the torque setting of the wrench
• M2 is the actual torque applied to the nut
• L1 is the normal length of the wrench
• L2 is the extended length of the wrench

https://www.utilityproducts.com/too...just-torque-values-when-using-torque-adapters

FIGURE 2: In this orientation of adapter to wrench, NO adjustment is needed.

 

Oh hell... as I said using anything like a crows foot will change the torque value to a point you might want to recalculate. Putting a 'straight' extension or drive adapter on is ok.

I get it.. adding anything changes things but that is also saying a 2 dollar adapter will change the outcome over a 5 dollar one. Most people aren't rebuilding their engine or such.. if so they aren't asking this question on TW

Edit.. also I guess there might be certain adapters that change angle that are made just for keeping torque values correct.. who knows .. not me

2nd edit to remove bad words

 

But this has been going back since 2013.. who cares. Anybody reading this do you own research and make your own informed call. Also, don't be afraid to use your torque wrench

 

Just clicked on your link.. and the first thing in your link says adding an extension doesn't change value... just like my drunk ass said

Oh well, just trying to help others by giving good information. Hopefully at least

 

We have a misunderstanding of terms is all. Sorry for the confusion.

I agree that adding an extension that doesn't change the length of the torque wrench does not require any adjustment.

BUT I posted the pictures of what type of extension Will require a recalculation of the torque value.

What you are referring to is this type of extension:



What I an referring to would be an adapter which may or may not effect the torque value depending on the angle it is installed on the torque wrench. If it is at a 90 degree angle to the wrench handle no adjustments are needed. But if it is in line with the handle ( as in extending the length of the wrench ) will require an adjustment of the torque value. A crows foot used at a 90 degree angle will not require a recalculation but if used inline with the handle it will.

 

I noticed that myself after squinting with one eye. Level heads prevail yet again on TW.
Enjoy

 

used to be a black hawk maintainer in the army. here's what we did-

dog bones and crow's feet have the same rules. keep it at a right angle so you don't have to do math. if you do need math: (old wrench length/new wrench length with adapter)*original tq setting=new tq setting. tq setting should get smaller if your adapter increases the length of the tq wrench, due to increased leverage, and vice versa if the adapter is facing the other way. also measure to the axis of rotation of the nut/bolt head.

these

do absorb some of the tq from twisting, but I'm pretty sure it's negligible. as a rule of thumb, keep it as short as possible. also thicker extensions will twist less with a given tq. but we never sweat that, nor did we know how to calculate the effect.