Mondeo siezed disc

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Sat 13 Jan 2007 12:56
Mondeo siezed disc - Robin Reliant
Trying to remove the front discs on my Mondeo, the nearside one has siezed on solid. There are no retaining washers and according to haynes the thing should pull off, but it seems to have rusted on. I have WD40'd it and given it the treatment with a rubber mallet, but no joy.

Any tips, perhaps a puller of some sort? Advice would be appreciated as it is starting to p down with rain and I am stuck.
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Sat 13 Jan 2007 13:20
Mondeo siezed disc - mjm
Don't give it the big hammer treatment, there is the risk of wheel bearing damage. Have you a blowtorch available to apply some heat? Warm disc/hub up and apply some more wd40. From memory I think they seize around the periphery of the hub, not the contact face. If you have a drill you could drill a series of holes across the disc where it returns over the hub, as close together as possible to weaken its grip on the hub. These holes can be joined up carefully with a cold chisel or cross drilling to encourage the disc to split.

Someone posted a method of shearing the rust away on this site a while ago but I can't find the link, sorry.
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Sat 13 Jan 2007 13:30
Mondeo siezed disc - adverse camber
I have heard of putting the front end up on stands so that the wheels are free to rotate, start it up, put in gear - low speed, then apply brakes.

I have never done that and it sounds rather iffy if not dangerous.
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Sat 13 Jan 2007 13:32
Mondeo siezed disc - adverse camber
thinking about it, apply brakes first then gently let the clutch out a little sounds better.

but all at your risk etc etc.
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Sat 13 Jan 2007 15:10
Mondeo siezed disc - Peter D
Common problem I was having my Volvo MOT on Thursay and there was a guy breking a sweat with a large lump hammer getting the disc off an AMC 55 Merc, all the manufactures need to do is but two tapped holes in the disc you insert two wheel bolts and crack the disc off the hub. A kettle of hot water slowly applied to the surface of the disk whilst slowly turning then a good clout usually does the job. If you are replcing the discs then a lump hammer if far more effective than a rubber mallet as the energy transfer is considerably different. Regards Peter
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Sat 13 Jan 2007 15:26
Mondeo seized disc - bikerider
In many years experience of removing seized mondeo discs i have found the easiest way to do is this to hit the outer face of the disc with a club hammer until the disc face breaks away from the hub,you can then knock of the piece left on the hub using a drift and hammer.And before anybody replies to this message saying that it will damage the wheel bearing in over twenty years of removing discs this way i have never known of anyone coming back complaining of wheel bearing problems.
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Sat 13 Jan 2007 15:31
Mondeo seized disc - Robin Reliant
Thanks for the replies, the nearside is finished thanks to half a can of WD and some persuasion with a rubber mallet. The other sod is proving stubborn as well, I will try the boiling water after the WD has soaked in.

Jeez, what a pig of a job!
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Sat 13 Jan 2007 16:00
Mondeo seized disc - jc2
As has been said many times before-Plus-Gas rather than WD-40.
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Sat 13 Jan 2007 17:26
Mondeo seized disc - Simon
I too have never had any problems after just smacking the discs straight off with a lump hammer. Before you fit the new discs it would be wise to put a thin smear of copper grease on the inner mating faces to avoid this problem in the future.
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Sat 13 Jan 2007 17:35
Mondeo seized disc - Micky
Angle grinder.
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