It's not mandatory, but a very good idea - you don't want any power
in the EFI or ignition electronics to lessen the chance of damage. So
you have to reprogram the radio presets, BFD. ;-)
Before you start welding, try just heating the bolt up with a torch
first, not to a red-heat glow just "good and warm" then try a wrench
one more time - the heat alone may break the threads loose.
Spraying a small amount of kerosene or other penetrant on the bolt
after warming it up may help too - the heat opens up the gap between
the bolt and bracket, and it'll suck right into the gap.
WARNING: If you get it a little too hot the kerosene or penetrant
might make a little fire too, so be ready for it. Little fire good,
big fire bad.
And if you arc weld on that bracket (any type - stick, MIG, TIG) be
sure to connect the ground clamp of the welder to the caliper bracket
and/or the caliper itself - you do NOT want any welding current to go
through the wheel bearings, you can fatally damage the bearings with
welding current making little arc pits in the contact surfaces between
rollers and races.
--<< Bruce >>--
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