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roy4matra
YaBB God
Posts: 1212
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« Reply #1 on: September 07, 2008, 11:56:21 am » |
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This is one area where I am happy to sacrifice originality. My front disks are badly worn and they would be quite heavy to post from Europe to Australia. Are there any disks and perhaps even the calipers from a current or recent model which would fit without much modification?
I am not aware of any. One problem is that the Murena discs are fitted on the back of the hub, not the outside like most cars. (so you have to pull the hub apart to change the disc!) Most cars you simply remove the wheel and brake caliper and you can change the disc. So either you are going to have to use the original, or find another that fits on the inside, or change the hubs too, or make your own! However, please bear this in mind - you should only need to change the discs once in about 15 - 20 years if the brakes are maintained correctly, so that is not really as big a deal as some people make out. If anyone has modified the front (or rear) brakes easily, AND they work as well as, or better than the original set up, we would all be pleased to hear from you. Roy
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roy4matra
YaBB God
Posts: 1212
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« Reply #3 on: September 07, 2008, 06:27:41 pm » |
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Roy How do you stop brake discs from corroding when the car is not being used?
If the car is not being used, remove the pads and calipers and cover the discs in grease, and wrap with oil proof paper. If the car is only being used intermittently then you need to stop using non-asbestos pads and switch to kevlar. (or asbestos pads if you can still get them! And regarding the health hazard, non-asbestos pads are just as bad as asbestos ones in my opinion but in a different way, so don't bother writing to me to say they should no longer be used. ;-)) One big problem with non-asbestos pads and clutches is that they contain metal particles, which a) wear the metal surfaces (discs/flywheels) unevenly causing grooving which corrode faster, and b) they also corrode themselves and therefore become welded to the disc if left stationary in contact for long lengths of time, making the situation even worse. When you start using again, you get a tearing action to separate the surfaces. As for Italian cars and discs, well their metal is poor to start with, so you are on to a loser there anyway! :-) With our wet climate you need to either use the car regularly, or keep it in a dry garage, or take it off the road and cover as stated initially. Roy
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lewisman
Sr. Member
Posts: 442
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« Reply #4 on: September 07, 2008, 09:29:07 pm » |
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As for Italian cars and discs, well their metal is poor to start with, so you are on to a loser there anyway! :-)
I am not sure where the replacement ones were made but Italian/French much the same as far as metal quality is concerned. Similar standard of wiring as well unfortunately. I agree with you about the non-asbestos pads. They are a big factor and I suspect most people were more careful with the dust when asbestos was involved! I suppose if my murena was going to be garaged up for six months I could consider wrapping the discs up. It is still in the middle of a re-build so there will be new discs going on the front and I will hopefully get away with skimmimg the rears whch are just a bit pitted but not grooved at all. I would still prefer having the option of easily removable discs so I will have a good look at the hubs when I strip them down. It would be handy if someone else had done it before though......
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