Re: Re: drums

[Mike & Deb <mdlefevre@xxxxxxxxxx>]

I can't tell you how many brake shoes I contoured back in the 70's. Some times I miss the smell of that asbestos. We used to blow off the backing plates and see how big of a black cloud would result! If it pissed off the service manager we did our job!
Mike LeFevre

On Feb 15, 2012, Gary H. <62to65mopar@xxxxxxxxxxx> wrote:

Sounds accurate to me. I probably have some 1965 drums in a storage shed to confirm. But per this reference:
"On brake drums manufactured after January 1, 1971, the maximum diameter to which drum can be worn is stamped or cast into drum." --
http://firetrucksandequipment.tpub.com/TM-5-4210-230-14P-1/css/TM-5-4210-230-14P-1_412.htm

So, before that date, no maximum diameter spec was required to be cast on the drum.

Also: "Before 1984, it was common to re-arc brake shoes to match the arc within brake drums. This practice, however, was controversial as it removed friction material from the brakes and caused a reduction in the life of the shoes as well as created hazardous asbestos dust. Current design theory is to use shoes for the proper diameter drum, and to simply replace the brake drum when necessary, rather than perform the re-arcing procedure."
per https://en.wikipedia.org/wiki/Drum_brake

Thanks,
Gary H.

> -------Original Message-------

> I just talked to a local buddy of mine that remembered what I did.
> He said a law was passed requiring it be cast into the drum since then.
> He said in the day most shops didn't care, and that they'd turn them
> anyway, before the law was passed.
> I know I worked on drums that did not have that data cast in, and
> remember very well the parts house referring to a book on their parts
> counter.
> I also remember "arcing " the shoes in those days..
>
> Jimmy

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Please address private mail -- mail of interest to only one person -- directly to that person. That is, send parts/car transactions and negotiations as well as other personal messages only to the intended recipient, not to the Clubhouse public address. This practice will protect your privacy, reduce the total volume of mail and fine tune the content signal to Mopar topic.  Thanks!
 
1962 to 1965 Mopar Clubhouse Discussion Guidelines:
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