Removing Epoxied Bushings & Mounting Plates Without Damage
Bushings and mounting plates epoxied into the floorboard of a derby car can
be removed fairly easily without damaging the board by applying heat
carefully. We acquired a used superstock particleboard floor with incorrect
bushings epoxied in.
epoxies disintegrate at 260°F to 300°F. That isn’t nearly hot enough to char
or burn the wood. We ground a small taper on one end of a 1/4-inch diameter
12 inch long steel rod. We heated about 2 inches of the tapered end with a
gas torch it until it was glowing red.
we pressed the end of the rod firmly into the hole in the bushing. Of course
you have to hold the hot metal with vice grip pliers or some other tool to
protect your hands. Heavy insulated welders gloves are a good idea too. The
heat rapidly transferred into the bushing and cooked the epoxy. Then the
bushings pressed out easily without damaging the floorboard.
talked with other racers who have removed axle mount plates in masters cars
by heating. The heat source could be a propane or oxygen-acetylene torch.
But you must be very careful not to burn the wood or start a fire. Heating a
sufficiently heavy piece of steel and placing it on the mounting plate to
transfer enough heat to cook the epoxy may work and doesn’t require a flame
inside the car.
Some arc welders might be turned down low enough that a small current passed
through the plate for a few seconds at a time could heat the plate enough to
cook the epoxy. Then the plate should come out easily without damaging the
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