If the discs are rusted on gently tap...

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Wed 14 Mar 2007 21:03
If the discs are rusted on gently tap... - Ian D
"if the discs are rusted on then gently tap them off with a copper/rubber mallet......"

yeah, right.....i have replaced several complete (front/rear) discs/pads on my car/friends cars over the last year or so and just about every time, especially rear discs that may have been on the car for 4 ir 5 years, it is a real problem removing the discs if they are rusted on. Now tapping them off with a rubber/copper mallet (as the manuals always say) just does not work, and often I have found a normal hammer and a hint of brute force and ignorance is the only way to remove the disc.

Now are there any more sophisticated ways to remove the disc, and is smacking (or rather tapping and moving it round a bit between every tap for as long as it takes) the dics with a hammer really damaging to the wheel assembly?

thanks
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Wed 14 Mar 2007 21:31
If the discs are rusted on gently tap... - George Porge
Cut a slot in the disc with an angle grinder, then open up the slot with a hammer and chissel.
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Wed 14 Mar 2007 21:46
If the discs are rusted on gently tap... - 659FBE
Front disks (FWD vehicle): Jack up front end, remove wheels and all disk fixings, run engine in first gear at tick over, gently apply brakes. When first disk breaks free, replace two wheel bolts on that side and repeat to free the other. With wheels fixed by studs, there is enough clearance around the stud holes for this to work.

Hitting disks will Brinnel the wheel bearings which will fail prematurely.

Usual requirements for the application of common sense with regard to safety.

659.
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Wed 14 Mar 2007 23:16
If the discs are rusted on gently tap... - Aprilia
On lots of Japanese cars there are two 8mm holes in the discs. You screw in a couple of 8mm bolts and they force the disc off the hub.
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Wed 14 Mar 2007 23:29
If the discs are rusted on gently tap... - scotmech
I have found the Mondeo discs are the most difficult to remove due to corrosion between disk and flange ... I use a hacksaw to cut disc in two places 120 degrees (1/3rd) apart ... I find you have more control with a hacksaw and they cut quite easily being a casting ... cut through the disc down to the flange you will feel the hacksaw going easer when it reaches the layer of rust before it reaches the flange ... If you cut 2 slots ... should take less than 10 mins .... then tap disc (using the copper mallet) and it will fall apart easily ...
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Thu 15 Mar 2007 16:22
If the discs are rusted on gently tap... - Glaikit Wee Scunner {P}
Yup, I second the advice about not using a normal hammer. Many years ago I chipped the rust off the edges of my Renault 18 discs.
Wheel bearing failure followed shortly afterwards.
--
I wasna fu but just had plenty.
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