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Part 4 - Installing Air Door Foam (continued)
May 18, 2008
Apply sealant to the heater box as shown below. I used latex caulk (do not
use urethane caulk -- it would make it very difficult to take the box apart
later) but DMT can supply the rope caulk that was originally used. In case
you're wondering what the gray blob is in the box, the chisel I used to cut
the rivet heads slipped and I needed to glue to chunk that broke out back in
place. I roughed up the box and the piece I broke out with 80 grit sand
paper and used JB Weld to hold it in place. BTW, I used way to much caulk. A
bunch of it squeezed out when I riveted the parts together.
Install the center metal plate and fasten it with four bulb rivets in the
positions shown below. You'll notice that the paint is mottled looking. That
was not intentional but was due to a problem with the valve on the spray
paint can I used. Also, you'll notice I fixed the top stud. Once the old one
was cut out, I simply tack welded a 3/4" 10-24 screw into place.
Install the left section of metal and use two more bulb rivets to hold it in
Caulk around where the right section of metal goes (including where the
center and right parts meet) and attach it to the box by bending the tabs
back in place.
Once all of the metal parts are installed, clean off the excess caulk,
flip the box over, and apply sealant as shown below.
Make sure to move the washer on the air door arm out of the way.
Install the cover. Make sure the end of it is in the slot as shown or it
will not sit on the box properly.
Install 11 more rivets to hold the cover in place. When you install the
rivets, make sure the air door is closed so you don't pin it open!
Once finished with the rivets, clean up any caulk that squeezed out.
Up next: Blower Motor Assembly
05/26/08 12:12:12 PM