Torque equation (not engine torque, tightening torque)
08-01-2008, 07:15 PM
#1
Torque equation (not engine torque, tightening torque)
Hey guys,
I'll be replacing my right rear wheel bearing here soon but won't have access to any torque wrenches that can go to the required torque to re-install the NEW nut I ordered.
I remember my dad saying that you can use an equation when using a cheater bar by applying so much weight at the end of a certain length of cheater.
Can anyone lead me in the right direction? I'm lost in math right now as I prepare to go back to College. Thanks!
-Darwin
I'll be replacing my right rear wheel bearing here soon but won't have access to any torque wrenches that can go to the required torque to re-install the NEW nut I ordered.
I remember my dad saying that you can use an equation when using a cheater bar by applying so much weight at the end of a certain length of cheater.
Can anyone lead me in the right direction? I'm lost in math right now as I prepare to go back to College. Thanks!
-Darwin
08-01-2008, 07:21 PM
#2
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Wouldn't it simply be the weight applied times the length of the cheater bar in feet? For example, if a 150lb person stands on a 2 foot bar, that would be 300ft/lb, right?
08-01-2008, 07:22 PM
#3
08-01-2008, 07:34 PM
#5
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It's just distance in ft times weight in lb applied at that distance moorepower is correct. This only works for nuts/bolts that are parallel to the ground like wheel lugs and axle bolts, etc. For just about everything else, you can use a fish scale on the end of a ratchet or breaker bar. Cheap torque wrenches aren't much more than that.
but...... why? torque wrenches aren't that expensive, or someone you know probably has one, or can rent one. it's a must for any serious wrenching on any vehicle....
but...... why? torque wrenches aren't that expensive, or someone you know probably has one, or can rent one. it's a must for any serious wrenching on any vehicle....
08-01-2008, 07:58 PM
#6
It's just distance in ft times weight in lb applied at that distance moorepower is correct. This only works for nuts/bolts that are parallel to the ground like wheel lugs and axle bolts, etc. For just about everything else, you can use a fish scale on the end of a ratchet or breaker bar. Cheap torque wrenches aren't much more than that.
but...... why? torque wrenches aren't that expensive, or someone you know probably has one, or can rent one. it's a must for any serious wrenching on any vehicle....
but...... why? torque wrenches aren't that expensive, or someone you know probably has one, or can rent one. it's a must for any serious wrenching on any vehicle....
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08-01-2008, 08:17 PM
#9
08-01-2008, 08:22 PM
#10
Rainman
Rennlist Member
Rennlist Member
whats your wrench rated to? i have one thatll do i think 100lbs, so if you have one like that just get a length of pipe thats 3.5ft long and put it over the handle of the wrench all the way to the socket and crank it from the end.
08-01-2008, 08:23 PM
#11
Three Wheelin'
~250 ft/lbs is just before whatever bar you're using begins to bend so far it's just about to break. At least that's how I did the rear axle nut on my first car ('68 Beetle). I bent the **** out of a 10 ft piece of pipe 
08-01-2008, 09:08 PM
#12
Nordschleife Master
I've got 270 of the needed 350 right here
08-01-2008, 09:10 PM
#14
Nordschleife Master
Yup. I will be there in the middle of this coming week and also on the 12th of August. Anytime, man. Michael
