Now for some not so fun work...cleaning up and restoring the heater box. After this work, it really wasn’t so bad and one just needs to dive in.
Removed the blower motor, air box and drilled out the rivets holding the steel backing plate to the fibreglass box:
There are some screws here as well. Gently separate and take lots of pictures of how this all goes back together...
The flappers (?) that control the airflow have foam glued on. Mineral spirits or wash and wipe will dissolve the foam and the glue. I wire brushed the metal pieces and clear coated them. Maybe one day I’ll invest in a sandblasting cabinet...
The fibreglass box got a coat of SEM plastic / vinyl dye satin black after some sanding and minor repairs:
Blower motor got semi-gloss black:
Will the post assembly photos later today.