Brake drums, was Step down headlight rims
Posted: Tue Feb 19, 2002 10:28 am
Hi 750/101ers,
Listen up mechanics! What do drums have to do with headlights, as in the
subject line??? PLEASE change subject line to represent content of your
message. How would you like a manual with its index all mixed up?
Now, about drums, Ian - those bands of yours were used to keep thin drums
from splitting. Used to be common for Model A Fords, etc. until someone
made cast iron drums. Similar bands are also used when turning drums to
keep your ears from suffering through all the screeching and bell ringing.
Dave et. al. - Now on to turning drums. Not a good idea using a drum lathe
and carbide cutter on steel drums nor Alfin drums. Why? You have to remove
too much material to get a good surface (0.004 to 6 inch) because the cutter
just follows the surface taking anything less. And besides, any hot spots
(hard) the cutter just skips over. By far the better method is to grind the
drums. Usually the grinder attachment (only supplied with old brake lathes)
has been misplaced.
Cheers, Peter
- that of the bands which some cars have had on the brake drums at one
time.
it was fitted with these bands around the drums; presumably fitted as an
aftermarket fix for the out of round problem.
I still have them hanging on the garage wall as a souvenir.
Ian Thomson
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> On Mon, 18 Feb 2002, Dave Norris wrote: > > If the drums are out of round you could get them skimmed by someone > with a brake lathe. I'm sure what the limits are for skimming drums, > i.e. maximum inside diameter. Anyone have this information? > >Problem is, the drums are already so thin they can't take much of a cut. >And being steel rather than the more commonly used cast iron, it won't be >long before they warp again. Warped steel drums might as well be thrown >away, or sold to someone building a trailor queen.