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Rear hub nut!


9 replies [Last post]
Jimbob
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Joined: Jul 29 2016

Sorry to create a new topic on something so dull, but having major snags with the rear hub nuts on the Libra- can someone confirm that they are both right hand threads each side?

I'm just passed the 'massive wrench and impact gun failed' stage and now thinking heat gun...

Many thanks, J.

Ryan Yarrow
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Joined: May 9 2009

Should be yes

Roger Hammond
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Joined: Jan 21 2006

They are staked ie a portion of the nut  is folded into a slot in the shaft. Have you punched this out before you started to undo it?

Richard Kendal
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Joined: Aug 21 2016

Hi Jim

Just been in the garage to check mine as recently removed with one of these.....

https://www.machinemart.co.uk/p/clarke-cew1000-electric-impact-wrench/

Both RH threads.

 

 

 

 

Jimbob
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Joined: Jul 29 2016

Awesome- thanks for the rapid response. Got to work with a borrowed 450Nm (same output as what Richard has recommended) impact gun to just 'click click click'. - stake was removed Roger honest!

Then borrowed a very large 3/4 inch wrench and despite my set up shown in the photo, it managed to round it!! Can't believe it! Correct 32mm socket... Not even with two hands either!

 

So, sadly looks as if it'll need a lift to the garage so they can atleast try oxyacetylene once they get to grips with what's left of it.

I've got to replace the upper ball joint (which I expect to be a pain to remove) and expecting hub damage to get the hub nut off, so looking at hub assembly options: is the MGF front hub the same as the metros? Looks pretty identical! Here is what I've eyed up... https://www.ebay.co.uk/itm/252411121893 

Cheers all.

 

Toby Wills
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Joined: Dec 30 2006

Yes mgf drive flanges are fine

tobe

sanzomat
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Joined: Nov 25 2014

I had trouble getting mine undone too and after failing with a six foot scaffold tube on a breaker bar I put out a "help" message on my local kit car club forum in Bristol and was lent a 240v impact driver which rattled it off without breaking a sweat. Same on the other side.

I'd say you are more likely to damage the driveshaft than the hub using brute force and/or heat to get it off so might be better getting hold of a spare driveshaft (or just the end).

You should use new stake nuts anyway but it sounds like you'll have no choice. Might be worth putting a bit of weld on the corners of the nut then hammering on an impact socket - gives everything - heat, hammering and a better fitting socket.

 

Good luck!

sanzomat
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Joined: Nov 25 2014

In fact I have a spare long (offside) PG1 driveshaft in my shed - you anywhere near Bristol?

Jimbob
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Joined: Jul 29 2016

Thanks Toby- rimmer bros were saying that the 'Metro' hub assemblies are a different part number to the MGF ones, but from what I can see either the Libra has MGF ones or they are indeed the same!

San' you're a star- I'll PM you.

Cheers,

J.

Tom Blows
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Joined: Dec 29 2005

It might be worth trying an impact socket; they tend to have a slightly different fit on the nut - so you could be lucky and be able to shift it, despite being rounded.

For what it's worth, 450Nm is actually fairly modest for an impact gun - some cordless 1/2" drivers deliver about twice that (!). If you can get your hands on one it'll be handy for the hub nut and for the top ball joint. I've replaced these joints at various times both with a big impact gun (fairly easy), and the hard way with a breaker bar. In the latter case, although it eventually relented it took so much "persuasion" I was vaguely worried that the whole car was going to slide off the axle stands...

 

Tom