Brake disc/rotor stuck on hub due to rust

Brake disc/rotor stuck on hub due to rust

Author
Discussion

lostkiwi

4,584 posts

123 months

Friday 30th September 2016
quotequote all
You have definitely removed the little retaining screw that keeps the disc on when the wheel nuts are removed?

eltax91

9,842 posts

205 months

Friday 30th September 2016
quotequote all
lostkiwi said:
You have definitely removed the little retaining screw that keeps the disc on when the wheel nuts are removed?
And there is DEFINITELY only one?

Jimmyarm

1,962 posts

177 months

Friday 30th September 2016
quotequote all
Assuming you aren't a two stone weakling, it might.

It is most likely stuck as a ridge of rust has built up around the back which is catching on the 'flange'.

Just keep hitting it, not just off but on as well. It will come off eventually and when it does you can tell all your mates at the pub you spent hours beating on a rusty flange wink

ETA; obviously beating the feck out of it for ages may cause some damage to other components, but heating it up/chiseling/grinding etc all carry that risk as well.

Edited by Jimmyarm on Friday 30th September 16:06

Camoradi

4,285 posts

255 months

Friday 30th September 2016
quotequote all
I've been in a similar situation, and being a bit nervous of applying destructive force, hacksawed from the edge of the rotor until I reached the centre. This released the tension and it literally fell off the hub. I was surprised how easy it was to cut into the rotor.

Petrolhead_Rich

4,659 posts

191 months

Friday 30th September 2016
quotequote all
maverickdrives said:
Smokehead said:
A proper 4 lb lump hammer will get it off with a couple of taps.
Would that not damage the hub/wheel bearings or other weak rusted parts?
your average acceleration/brake/pothole/speed bump exerts considerably more force than a 4 pound hammer ever will, so not really, no!

OP, assuming FWD, support vehicle very well with multiple stands, remove both wheels, refit roadwheel bolts onto hub hand tight then wind off half a turn.

Start engine, select gear & turn the hubs with the engine at ~10mph indicated, then repeatedly jab the brakes

ENSURE VEHICLE IS WELL SUPPORTED AND CHOCKED and BOTH HUBS ARE OFF THE GROUND!

haggishunter

1,315 posts

242 months

Friday 30th September 2016
quotequote all
I once had to smash the face off the disc then cut the rest off with the grinder. It wasn't fun but got the job done

Rob197

781 posts

145 months

Friday 30th September 2016
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What car is it? Never had one that wouldn't come off with a large hammer

inkyhands

18 posts

116 months

Friday 30th September 2016
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You could give this method a try https://www.youtube.com/watch?v=pMuHKDI00rw

Rich1973

1,191 posts

176 months

Friday 30th September 2016
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3 legged puller is an option too.

eltax91

9,842 posts

205 months

Friday 30th September 2016
quotequote all
inkyhands said:
You could give this method a try https://www.youtube.com/watch?v=pMuHKDI00rw
Awesome!

Galveston

708 posts

198 months

Friday 30th September 2016
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Buy a bigger lump hammer. An extra pound or two makes a significant difference.

hora

37,010 posts

210 months

Friday 30th September 2016
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Sump said:
No. Screw your wheel lug on slightly, them hammer it like a Thai virgin.
Yup Steel on steel 'shocks' the adhesion.


GC8

19,910 posts

189 months

Friday 30th September 2016
quotequote all
lostkiwi said:
^^^ This ^^^
Plusgas, duckoil, 50/50 ATF/acetone....
WD40 is a Water Dispersant (hence the WD).
Better than 50/50 diesel and gearbox oil?

Momentofmadness

2,364 posts

240 months

Friday 30th September 2016
quotequote all
Grinder, no messing and pretty sparks coolwink


ez64

233 posts

161 months

Friday 30th September 2016
quotequote all
Chuck an entire tyre into it full force, worked before biggrin

Drive Blind

5,076 posts

176 months

Friday 30th September 2016
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had this a few times over the years.
The heat solution has always worked for me.

anonymous-user

53 months

Friday 30th September 2016
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WinstonWolf said:
Does it move at all? Is the spigot face in good condition? You could try cleaning the spigot up with a wire brush or a bit of emery tape if you have it.

Use the mallet "around the clock", whack it at 9 then 3 then 6 then 12, repeat until it gets bored and comes off biggrin
^^^^ This.

Don't bother trying to hit the disk from 'behind', just whack it hard from the front (near the rim) at '3 o'clock', then again at '9'. Repeat this 'pivoting' action as necessary. Use a 4lb lump hammer rather than a soft-faced mallet.

S0 What

3,358 posts

171 months

Friday 30th September 2016
quotequote all
Another vote for the above, only ever had to cut 1 disc off in over 30 years as a mechanic, Mk1 sierra estate in case anyone wonderd wink they go through many many heat cycles daily so heat isn't usually the answer IME

anonymous-user

53 months

Friday 30th September 2016
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Just to add that there are, of course, some disks that bolt onto the rear of the hubidea No amount of malleting will remove those!

Toltec

7,159 posts

222 months

Friday 30th September 2016
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eltax91 said:
inkyhands said:
You could give this method a try https://www.youtube.com/watch?v=pMuHKDI00rw
Awesome!
Used that method a couple of times, preloading before deploying a hammer has helped shift bearings as well.