Re: [Chrysler300] drumbs

[Ray Jones <hurst300@xxxxxxxxxx>]

Herb is right, I watched a Demo of a new Brake lathe, maybe 35 years ago. After showing us how to properly do drums and discs, he said "You MUST keep the surfaces spotless". Then he took a piece of cellophane from a pack of smokes and put it against the lathe where the drum is tightened just on one small area near a lug hole. Then he started to turn the drum and it would skip 1/2 and cut the other. Just the thickness of the wrapper, single layer did the trick. Never forgot.
Ray


On Jul 20, 2011, at 7:26 AM, Herb wrote:


Not warped, but not trued & turned correctly. Cleanliness is usually the ,
culprit, metal shavings are a byproduct of drum turning and often times
someone in a hurry will get a shaving accidently sandwiched between an
alining surface of the lathe & drum with a not so good outcome such as you
discribe. If this did happen I would insist on new drums. When they
re-turn your drums to put them back to true they remove even more metal
drastically shortening the drums life and heat dissipation ability. Another
item to address is did a shaving get in between the hub and drum surfaces
when they were swaged back together forcing them to run out of true? 



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