Have you got a weigher thing with a spring in it (like a fish weigher - forget what it is called.) there is mathematical way that for every foot of bar the spanner or extension bar goes up the pound required in the spring guage reduces by x amount. For example if you go 5 foot up the pole/bar whatever, you place the spring quage on bar and pull till get to 30 pound pressure. The nut has now got 150 pound on it. (what numbers were for example and are not correct but the process does work) My grandfather told me about it and is the way i put my fly wheel back on.

I hope somebody understands what i am saying and explaines the formula a bit better i cant remember the foot to pound reduced ratio.

Brenton

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Ok, what is trying to be said there is that a moment is a force x length.

So you want 150ft/lb = force x 5 (for 5ft of bar length).
Rearranging that gives 150 / 5 = 30 pounds of force needed in a perpendicular direction (i.e. the force acts at 90° to the bar).

That is my understanding of the concept. As said, the chances of you applying that force exactly perpendicularly are pretty slim so it won't be as accurate as a torque wrench. Remember - every pound you are out means 5 pounds difference at the actual nut (for this situation anyway).

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"In two years time your car will be like a lady's clothes, out of date, my car will still be in fashion when I am dead" - Sir Alec speaking to Pininfarina

Well I have never used a torque wrench to do up the hub nuts on my car. I just use a really long breaker bar and do it up as tight as I possibly can. It has never come unintentionally loose.

That's interesting stuff. It took me awhile to figure it out.

It would definitely never have occured to me that a calculator might be helpful in getting this nut right.

Sometimes calculators can be quite useful helping you nut stuff out it just had to be said

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"In two years time your car will be like a lady's clothes, out of date, my car will still be in fashion when I am dead" - Sir Alec speaking to Pininfarina

as mentioned earlier, it may be that the tapered spacer behind the nut and the disc hub have warn. If this is the case then no amount of ft/lbs are going to stop it coming undone. Usually when you least want it to !!!!

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Well I think I might run it across to Mini Clinic or Mini Classic on Saturday and get a professional to have a look at it.

The last thing I need is a wheel coming off.

hey thanks 1018cc

I did get the numbers correct
just was a bit unsure

Brenton

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