Torque measurement

[Clive Apps Techno-Logicals 416 510 0020]

> 
> Since the motor mounts are connected to the block , you need to rotate the
> block to compress the load cell not the crank.
> The hardest part with this method is figuring out the scale in foot pounds.
> Usually load cells are calibrated with certified weights hung from a known
> length, usually a 1 foot long bar, hence 'foot- pound'  I don't know how you
> could calculate the moment of movement that the block would place on the
> load cell. I would guess if you bolted a 1 foot bar on the engine at the
> center line of the crank and placed a 1 pound weight on the end of the bar,
> you would be able to calibrate the load cell out put for 1 foot Lb. Of
> course you would 
> want to cal it to 300 ft.Lbs or what you think the engine would put out. If
> you use a 2 foot bar then 1 pound on the end would apply a force of  2 foot
> Lbs. This would save some cal weight. Your idea is  excellent  and should
> give some good results. Another way to read the torque would be to connect a
> load cell to the block about where the front freeze plug is, and the other
> end to the frame. This will make a solid motor mount that might damage the
> Trans case if you torque it to hard. You might want to try this using the
> same cal procedure, and if it works go to the mount system.     


except the bar has weight
better to place it vertical and use a scale to get the weight required
a 5" bar and 80 lbs pull would be 400 ft lbs

Clive