Help: torquing converter bolts

[mainer]

After some thought on the subject:

I doubt it has anything to do with extension torsional flex.

you've been arguing the exact opposite in your last posts.... which is it.... pick a side and stick with it or admit that your possibly wrong dont suddenly change your stance because a few others have

Does anyone disagree you can loosen a too tight bolt easier without extensions?

easier ...??? no....


it requires the same amount of torque to loosen a given bolt with or without an extension so technically its not easier.

using an extension does require you to oppose the socket trying to twist off the fastener though

 

[TrentNell]

are you kidding me 8 pages to say that as long as torque does not exceed the torsional streingth of the extension it is acurate and if does it is not ! just because the lawyers cant excpect a person make make a common sence judgement they put it in the instructions to cover there ass :rofl:but i have heard the same as mike stated in a mech training i went to cant remember wich one though

 

[McRat]

DOH!! Leadfoot is saying much the same. It took me along time to hit enter, I was fixing dinner.

 

[JoshH]

are you kidding me 8 pages to say that as long as torque does not exceed the torsional streingth of the extension it is acurate and if does it is not ! just because the lawyers cant excpect a person make make a common sence judgement they put it in the instructions to cover there ass :rofl:but i have heard the same as mike stated in a mech training i went to cant remember wich one though

We're only on page 6. I guess the paint fumes are getting to you...

 

[McRat]

you've been arguing the exact opposite in your last posts.... which is it.... pick a side and stick with it or admit that your possibly wrong dont suddenly change your stance because a few others have




easier ...??? no....


it requires the same amount of torque to loosen a given bolt with or without an extension so technically its not easier.

using an extension does require you to oppose the socket trying to twist off the fastener though

Tighten a bolt with a 2ft extension one-handed and get back with me...

 

[TrentNell]

We're only on page 6. I guess the paint fumes are getting to you...

:nod:

:dunce:

:rofl:

are you saying you disagree with my statement though ?

 

[JoshH]

:nod:

:dunce:

:rofl:

are you saying you disagree with my statement though ?

I agree with what my torque wrench instructions say. I try not to overthink things.

 

[Leadfoot]

Tighten a bolt with a 2ft extension one-handed and get back with me...

A 1/4" bolt to 3 ft/lbs wouldn't be so bad, but I'ld like to see him tighten a 1" bolt to 200 ft/lbs one handed :rofl: If he can do it correctly, I would hate to piss him off

Hell, Ben what did your head studs get tightened too? It took me two arms (one to pull and one to keep the wrench perpendicular) and some of my 225lbs to get those to the proper final torque

 

[duratothemax]

A 1/4" bolt to 3 ft/lbs wouldn't be so bad, but I'ld like to see him tighten a 1" bolt to 200 ft/lbs one handed :rofl: If he can do it correctly, I would hate to piss him off

Hell, Ben what did your head studs get tightened too? It took me two arms (one to pull and one to keep the wrench perpendicular) and some of my 225lbs to get those to the proper final torque

I forget, but we did have an extension on there so who knows what the "real" torque of the bolts is! :stirthepot:

ben

 

[McRat]

I forget, but we did have an extension on there so who knows what the "real" torque of the bolts is! :stirthepot:

ben

Less that what you think.

 

[TrentNell]

I agree with what my torque wrench instructions say. I try not to overthink things.

i would follow them too, because if i had a choice between my head gasket being over torque 6 lbs or under torqued 6 lbs i would pick over torqued ! because the real deal is you have no idea wich one you got , way to many variables .

 

[mainer]

Less that what you think.

good thing ben isnt the one having headgasket issues....

 

[TrentNell]

good thing ben isnt the one having headgasket issues....

dude that was a low blow

 

[IOWA LLY]

Wow.

 

[mainer]

just saying that using the extension to torque his head bolts hasnt caused him any issues ..... so the torque must not be low from the use of an extension

 

[WolfLMM]

Shaft is yielding? Isn't that what I have been saying? I watch shafts bend every day under a lot of tq.

Ultimate yield. If you yield the extension it is junk. I didn't say the shaft doesnt twist because that makes no difference.

 

[WolfLMM]

Nope. Mike L. is correct.

Next time you buy a quality torque wrench, read the instructions.

Don't use extensions if getting the torque exactly right is important. Me? I just tighten them til they strip or snap, then back it off a hair.

Humm my snap on does not mention the use of extensions. Because it doesnt matter! The only tq you will use is if you dont hold the Z axis (ext) perfectly in line with the bolt.

 

[WolfLMM]

]Funny, when I put in a stiffer torsion bar, the front the truck goes up, even though the torque the front wheel applies to it is constant.[/B] A micrometer style torque wrench has a rotational mechanism as well. You might be correct when using beam style wrenches, but they are less common.

Extension flex is just one component though. The greater the distance from the nut the head is, the more important to hold the tool perfectly perpendicular becomes. I guarantee you that with extension(s) on, you cannot get the same torque repeatably without a jig to hold the wrench perp.

Pat, the tq stays the same but the material flex's/twist less. You just proved Ben and I correct with that statement.

 

[WolfLMM]

It is simply pragmatic tool usage. They came up with loss numbers based on observation I suppose.

But that is interesting.

Does a spring heat up when cycled?

Does a torsion bar?

Where did the energy come from if the force and rotation was the same?

Does a wire heat up when you bend it back and forth?

 

[WolfLMM]

I disagree, in the elevator trade, the engineers put there heads together to make new designs everyday, they send it out in the field cause it looked great on paper, well guess what, it didnt work, you know where they get their best advice to make it work? The card carrying field guys. They call the field guys every day getting advice, ive known personally several field mechanics that have been offered engineer jobs but have turned them down because our benifets/retirement/and pay is better in the field. Not saying that everyone that has this piece of "paper" wasted their time, just saying that your last sentence is completley incorrect. Edit, this has nothing to do with the original argument.... sorry for the ot

I ask my machinist questions all the time. I want to make sure the part I design is easily produced.....whats the problems with consulting with field workers, it makes for a better product all around.