Chimaera rear hub nuts

[PaulTVR]

Hi All
I need to undo the large nuts that hold the rear wheel hub in place on a Chimaera. I don't have a socket large enough so before I go and buy one I wanted to check the size. I measured it as 41 mm but not sure if it is a metric or imperial size. Does anyone know?
Thanks

[bobfather]

I don't know the the size but I will offer some advice. Don't tighten or untighten the nut using the drive train as resistance. You must either have the wheel on the ground or fix the hub using a long bar bolted to the lug bolts. The torque is too much for the LSD to withstand.

[TwinKam]

Yes, 41mm. Would advise getting a 3/4" drive socket.

[PaulTVR]

Thanks for the advice. I am doing a complete strip down, clean, paint and rebuild so hub carriers are already off the car.

[bluezeeland]

PaulTVR said:

Thanks for the advice. I am doing a complete strip down, clean, paint and rebuild so hub carriers are already off the car.

You'll have SO much fun getting them of....

[bobfather]

PaulTVR said:

Thanks for the advice. I am doing a complete strip down, clean, paint and rebuild so hub carriers are already off the car.

Haha, that's not necessarily a good thing, I hope you have a strong vice on a very heavy bench. These hub nuts are tighter than you'd expect

[Paulprior]

My local mechanic reckons he gets most hub nuts off just using a pneumatic impact wrench, this does sound the easy way if it's powerful enough?

[Sardonicus]

decent length bar on that 3/4 drive 41mm socket will produce more torque than a windy gun they are not that tight trust me

[N7GTX]

Paulprior said:

My local mechanic reckons he gets most hub nuts off just using a pneumatic impact wrench, this does sound the easy way if it's powerful enough?

I used a 1/2" drive windy gun when mine were off and no problems. So long as the gun isn't tired I'm sure it will undo them ok.

[Plan B]

Don't forget the threads are handed differently for n/side and o/side. They really aren't too difficult to loosen - I've taken them off with 1/2 inch drive breaker bar and at other times with cordless impact wrench. 1st gear + handbrake worked for me.

[phillpot]

Plan B said:

1st gear + handbrake worked for me.

Not if the hubs on the bench ...


Windy guns are okay, if you have a windy making machine!

[N7GTX]

phillpot said:

Plan B said:

1st gear + handbrake worked for me.

Not if the hubs on the bench ...


Windy guns are okay, if you have a windy making machine!

Works every time.....

[PaulTVR]

They are now undone! I managed to wedge the hub carrier between wooden blocks on garage floor, place a strong metal bar between the wheel lugs and jam it against bench legs. Then 41mm socket with 3/4 inch breaker bar and plenty of elbow grease did the trick. Thanks for all your suggestions.