I have done this on a car exaust manifold (stud and nut) and it worked great. I think part of what made it work was the mass of the metal I was heating retained the heat...
Don Williams Woodinville Washington USA
On Sun, May 18, 2008 at 8:03 PM, coel canth <coelcanth@gmail.com> wrote:
> if you Still can't get it off maybe you can try a tip i heard from old
> time autoworkers ??
>
> for freeing up super seized and rusted bolts someone told me to heat
> the bolt until it is red hot and quench it with an old candle...
> apparently the wax will melt and penetrate into the threads via
> capillary action and act as a lubricant..
> has anyone tried this with success ?? i know there are not many
> places to apply this in bike mechanics
> (i never tried.. i broke all the bolts off the exhaust manifold first)
>
> i suppose you have to watch the heat though... too much can affect the
> chromed finish
>
> andrei padlowski
> brooklyn ny yo
>
>
>
> At 10:11 PM 18/05/2008 -0400, Paul Williams wrote:
>>Any ideas for loosening a stuck rat-trap pedal froma left hand 1960s
>>Williams chromed crank? Came that way! Want to use the cranks but the
>>pedals are junk.
>
> I assume you've tried a pedal wrench. These are usually longer-than-normal,
> thin, 9/16" wrenches, that require a sharp rap with a hammer to loosen the
> thread. If the pedal is junk, disassemble it from the spindle and clamp the
> spindle in a large bench vise and try turning the crank with a big pipe. If
> it doesn't want to budge and the crank might bend, heat and quench the
> spindle a couple of times to loosen the threads. (You know, of course, that
> the LH pedal gas a LH thread.)
>
> John Betmanis