Just another question about putting a new nut back on, I have heard that it's not a good idea to put these nuts back on with a rattle gun as it's got too much torque and it might get threaded?
Hi Converse,
I was looking through the old posts and came across this one, and literally just had to put a disc back on. I used a
Torsion Bar. Torsion bars are made of Chrome Molybdenum and are designed to withstand the force of impact wrenches. The thickness of the Torsion Bar will dictate the tightening torque it will allow. The thinnest bar in the set I have is 75NM. So once the nut is tightened to 75NM, rather than continue to tighten, the bar wobbles and flexes. Please note, most impact compatible tools should be made from materials like Chrome Molybdenum. Chrome Vanadium is not as resistant to shattering and should not be used.
I'd also like to add as a side note to anyone who may be reading this, use 6PT sockets/wrenches where possible, not 12PT. When I was younger I was told how fandangle and amazing 12PT was, but over the years I've come to realise that they can be your worst nightmare haha.
For anyone who comes across this thread and is still stuck at the end of it, where you may be able to fit the tool, you can use
Nut Splitters which could remove the nut, and you can also try rounded nut removers (Though you may struggle to find one designed for nuts that are 24/25mm).
In a pinch, you can try to re-grind 2 or more flat sides so you can get some sort of spanner on there to try to remove the nut.
Finally, please be careful using impact tools. When you're trying to remove a stuck bolt they can be a godsend, but if you're using an impact wrench that can tighten over the specified torque of the bolt in question, you're at very high risk of overtightening. A mechanic used a 1000NM wrench when putting the wheels back on my car. When I tried to get them off, the nut stripped and the mechanic had to drill out the stud. Remember, both the fastener and the thread are only designed to withstand a specific amount of torque, and overtightening a component which is connected to another component can lead to all sorts of issues down the track. Where possible, torque wrenches and other devices like
Torsion Bars should be used. Also remember, many impact wrenches will reach their peak torque after a period of time or number of impacts, so letting the tool run until it clicks once or twice to try to be safe may result in looser than required fasteners, but similarly, some will provide the full force (Or close to it) earlier on, so waiting for a couple of impacts and stopping could have already resulted in overtightening.
Just food for thought.
Cheers,
pau13z
