Hot water from the radiator. I keep this idea for unhappy moments.
But I think this isn't my favorite. One thing: the cooling system works with a little pressure on it, than open the (expensive) radiator with a hammer to take care for a (not so expensive or in relation cheap) wheelnut?
Than refill the hot system with cool water...
I wasn't good in physic at school, but I think my teacher wouldn't be happy with this way.
After all the good ideas I take the factory (cheap tin pressed) spanner and weld a tube on it for the heavy moments
of strong tighened nuts.
René
