1991 SR5 4x4 xCab 3.0


Is there a "locking nut" on the AC Lower Idler pulley?? Trying to remove AC
belt. Adjusting bolt completely off. Still not moving. Tapped it with a hammer
but it still won't budge. I don't want damage it.

 

I assume you found it.

 

Nice pic....

Yes. Yes there is. It's the same as the power steering belt idler pulley....it gots a lock nut....

 

Say what now?? There's no PS belt idler pulley on a V6. You loosen the belt tension adjustment bolt on bracket below the pump, then swing the entire assembly up or down until the belt is tight enough before retightening the bolt to 29 ft-lbf. Yes, it's just a bolt/there isn't a lock nut on it either.

 

Whats a ft-lbf? Couldn't find that in any book

 

Foot-pound (energy)

The foot-pound force, or simply foot-pound (symbol: ft-lbf or ft-lb) is a unit of work or energy in the Engineering and Gravitational Systems in United States customary and Imperial units of measure. It is the energy transferred on applying a force of 1 pound-force (lbf) through a displacement of 1 foot. The corresponding SI unit is the joule.


Usage

The foot-pound is often used to specify the muzzle energy of a bullet in small arms ballistics, particularly in the United States.

"Foot-pound" is sometimes also used as a unit of torque (see Pound-foot (torque)). In the United States this unit is often used to specify, for example, the tightness of a bolt or the output of an engine. Although they are dimensionally equivalent, energy (a scalar), and torque (a vector) are distinct physical quantities. Both energy and torque can be expressed as a product of a force vector with a displacement vector (hence pounds and feet); energy is the dot product of the two, and torque is the cross product.

Conversion to other units

Energy units 1 foot-pound is equivalent to:

1.3558179483314 joules
13,558,179.483314 ergs
0.001285067 British Thermal Units
0.323832 gram calories
0.000323832 kilogram calories or food calories


Power Units

1 watt ≈ 44.25372896 ft-lbf/min
1 horsepower (mechanical) = 33,000 ft-lbf/min = 550 ft-lbf/s

 

link? You make it overly complicated.

 

That's as simple an explanation as I could find. All you really need to know is:

lb = pound
lbf = pound force
ft = foot

And any combination of those terms means essentially the same thing, foot pound/pound foot(w/ or w/o the term force added). The semantics are irrelevant to most topics of conversation. Meaning:

ft lb = ft-lb = lb ft = lb-ft = ft lbf = ft-lbf = lbf ft = lbf-ft = foot pound(force) = pound(force) foot

 

What if you don't need feet?

 

Real men measure in N M

 

New Mexico?

 

Ninja Measurement.

N-m specs can be found in the NWM(Ninja Wrench Manual).


Ninjas can do anything more accurately and precisely.