Body Work - Part 2
By: Patrick Smith
Automotive Wisdom through the Ages
We left off last time with the 1980 SE trans am entering the body shop for a
complete make over. The original paint was heat checked and worn. The interior
had seen better days. Our teardown revealed some rust in the rear wheel well
areas behind the fender spats, a rusty trunk lid, and little bit of nibbling on
the top of one fender. Not bad at all for an Ontario car. We start with sheet
metal removal of rusted areas and patch panel fabrications for the fender spat
areas.
The panels were welded in place with arc welder, then ground smooth to remove
any rough spots. The areas were touched with a thin layer of filler before color
sanding. The biggest job by far had to have been the driver side lower rear
quarter. The body man removed all the old filler and pulled out the panel, then
straightened as best as he could before putting on a thin layer of filler. The
doors, hood and front fenders came off and were treated separately with paint
removal, metal prep, sanding and primer. I’ve just encapsulated about two weeks
of body work. It doesn’t do justice to the body men’s craft. I can’t begin to
accurately this art skill, anyway.
One thing I learned from it is to avoid using light primer on a black car. We
used something that was light yellow when dry and any little chip will show a
bright spot underneath. I should’ve asked for grey primer. The entire car was
block sanded, checked for high and low spots and redone until it was ready for
primer. It took all Saturday to shoot it in yellow. It dried over the weekend.
Next week, the men started doing the car while smaller pieces such as the hood,
doors, nose and rear spoilers were sprayed separately. They used an air dry
base/clear finish. It produced a brilliant finish but it takes time for the
catalyst to burn off. I didn’t apply decals for a month afterwards because I
could smell solvents after driving the car. You want the paint to be totally
cured before applying decals or something called “dieback” will ruin your
decals. The trapped gas will burn the decal from underneath and mar it.
I added a new trunk lid from Cross Canada. I regret doing that move. The trunk
lid isn’t identical in measurement to an original piece and lining up the
spoilers was impossible. Somehow, the trunk lid is just a little off in
measurement and you either have to move the lid too far inboard or keep the lid
correctly proportioned and live with misaligned spoilers. You are best off using
a factory original trunk lid.
The car was sprayed black and the paint finish was excellent. That part turned
out perfectly. No wet sanding or buffing required. It was just great. We’ll get
into some of the fun stuff next time such as weather strip installation and
decals. I learned a lot from this car and will hopefully make the next Trans Am
a better project.