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At the risk of starting a riot, I'll add my .02 on heat to
remove the rear drums. From my experience, any heat over a little on the hub is
of no use & will only make matters worse. With anything as hot as a torch,
the heat also transfers from the hub to the shaft & both expand.When I
got to the part in the post about using heat, the results were quite
predictable. If your going to use heat, use it sparingly & then give the
thing a couple of good whacks with a heavy hammer. If it doesn't pop off the
first time, tighten the puller a little more & use the hammer to strike the
center screw sharply & also tap with the hammer around the drum to help
shock it loose.Its also a good idea tp spray some WD-40 into the hub where it
sits on the spindle.
John
----- Original Message -----
Sent: Sunday, July 14, 2002 7:02 PM
Subject: Re: IML: The Definitive Tapered
Hub/Axle Nightmare
Jim;
I think that ordeal was Mike Trettin's adventure
as I read it yesterday. He
did mention that he tried using heat with a pair
of propane torches, he had
the right idea but used the wrong tool. Heat can
be very useful in removing
stubborn bolts or press fitted items but you
need to heat it till it's
cherry red and you need acetylene to do it.
Propane does not produce a hot
enough flame to heat something the size of a
wheel hub. That being said
there is no substitute for using the right
method to pull a tapered hub,
which you already know, but its nice to have
a plan B to fall back on for
the really tough customers. A friend of mine
told me that the proper name
for this tapered fitting is a Morris taper,
they are also used on bicycle
cranks and old Volkswagon drums as well. The
fortunate part about the brake
drums and hubs is at least they are both
made from ferrous metal so that
they don't weld themselves together. The
cranks on bicycles are often made
from aluminum fitted to a steel shaft so
you can guess what happens when a
little moisture sets in, hence why you
smear grease between them before
putting them back together.
Best
Regards
Arran Foster
1954 Imperial Newport
Needing a Left side
taillight bezel and other trim parts.
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