Can't seperate hub and disc

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Speedy88
Posts: 4057
Joined: 04 May 2009 11:52 pm
Location: Bristol

Can't seperate hub and disc

Post by Speedy88 » 14 Jul 2010 06:08 pm

Today tried to renew my discs and pads. Pretty straight forward eh? Everything removed after the destruction of a socket and much hammering and fire.

I removed the 4 allen key bolts from the back of the disc attaching it to the hub and expected everything to fall away at this point. Nothing. Not even a creak, so I hammer away with harder hammers and still nothing seperates. I've even tried hammering the two screwdrivers in from the side as you can see below. Both of these are now stuck so I'm happy that they are hammered in enough. Which way is the disc meant to come away? I'm guessing backwards but it appears that the part of the hub that extends towards the car (as seen on the left hand one below) is too thick for the disc to part that way.

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Have I missed something catastrophically important or are they just rusted solid? What are my options? I'm not panicking too much because I can just put new pads on without a disc change. However I'd rather not:

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Halp plz
'88 340 Williams (Sold)
'85 360 GLS - Drift project (Sold)
'77 Colt Sigma
'96 940 Drift project

volvosneverdie
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Re: Can't seperate hub and disc

Post by volvosneverdie » 14 Jul 2010 09:53 pm

Im no ninja dude.

But......................... Massive Hammer?
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Ride_on
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Joined: 26 May 2009 05:34 pm
Location: Belfast, N. Ireland

Re: Can't seperate hub and disc

Post by Ride_on » 15 Jul 2010 01:42 am

It is hard to get them out you need to use the right technique, unlike other cars they do not fall off when unbolted. Not sure I remember what way it comes apart, but basically use blocks of wood and a big hammer.

Set the disk on 2 blocks of wood that are high enough to keep the studs off the ground, put another block of wood on the hub. Then hit the top bit of wood with a very large hammer. Possibly another thin piece of wood under the stud to protect them when they fall out, and maybe some tissue in the hole for the stub axle to stop dirt getting in. I use a full sized sledge hammer.

If you get really stuck just smash the disk with a hammer, it will shatter but risks damaging the bits you are keeping.
1980 345 DL_______1987 360 GLE (project car restored to GLT spec and B230FT'd)
1984 360 GLT______1987 360 GLT
1983 360 GLS______1989 360 GLE
1985 340 GL_______1986 340 1.4
1985 360 GLS______1995 940 SE 2.3 Turbo Estate (daily)
1987 340 GL 1.7

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Speedy88
Posts: 4057
Joined: 04 May 2009 11:52 pm
Location: Bristol

Re: Can't seperate hub and disc

Post by Speedy88 » 15 Jul 2010 04:35 pm

Thanks for the tip-off, neighbour's massive sledge hammer worked after 4 hits! That was some chuck norris strength rust.
'88 340 Williams (Sold)
'85 360 GLS - Drift project (Sold)
'77 Colt Sigma
'96 940 Drift project

volvosneverdie
*** V3M DONOR ***
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Re: Can't seperate hub and disc

Post by volvosneverdie » 15 Jul 2010 04:40 pm

Speedy88 wrote:Thanks for the tip-off, neighbour's massive sledge hammer worked after 4 hits! That was some chuck norris strength rust.
Ahem.
I knew if I said massive hammer enough times that eventually Id be right.

:wink:

18% success rate.
On the up.
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MCHUDD
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Re: Can't seperate hub and disc

Post by MCHUDD » 15 Jul 2010 09:38 pm

Hi mate.
Have you taken the caliper back plate off?
Cheers Mark. sm4

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