| Re: [GMCnet] Brake Problems [message #271195 is a reply to message #271148] |
Wed, 04 February 2015 12:42   |
Emery Stora
Messages: 959
Registered: January 2011
Karma:
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Senior Member |
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Are you still able to find asbestos brake lining? I thought that the EPA banned it back about 1986.
Emery Stora
> On Feb 3, 2015, at 7:55 PM, Bob de Kruyff wrote:
>
> kerry pinkerton wrote on Thu, 29 January 2015 08:09
>> Gary Berry wrote on Thu, 29 January 2015 08:47
>>> ... They fixed it by having the brake pads arched to match the brake drums. Each of the pads were just running on the tips. Not sure where one
>>> can have arcing done, but it fixed their problem....
>>
>>
>> Pretty common back in the 50's and 60's. Especially on old MOPARs. I've got a buddy with a machine but I've never needed to use it. Easy to
>> check. Pull the drum, pull the shoe, check that the arc of the shoe matches the inside of the drum.
>>
>> If the drum has been turned a lot or the shoes slightly out of spec, the arc can be off enough that the shoe won't be in full contact. I'm not
>> sure that will cause the problem that he's describing but it would definitely effect brake effectiveness.
>
> Arcing or cam grinding is now illegal in many areas due to asbestos problems. You can buy used machines but most shops will no longer do cam grinding.
> Unless you are OSHA compliant, I don't think you can get a new machine. Since drum brakes are disapearing in the industry, ther aren't too many people
> that know how to do it correctly.
> --
> Bob de Kruyff
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