The hold-down lock for the radiator cap on more modern cars is rolled to the
outside of the neck. On this '36 it's on the inside and the aftermarket wants
$35 - $50 for a replacement cap. I'm sure I could have scavenged around and
found something that works, but I had a different thought in mind.
With a holesaw plug left over from making the motor mounts (yes, I save such
things
); a scrap of the same conveyor belt I used for the body mounts; a
small rectangle cut from some scrap steel; and some hardware, we're good to go:
The slot in the top of the threads indicates the orientation of the hold-down
when the cap is installed:
Here's a picture of the first installation. Afterwards, I cut the seal (conveyor
belt) down by half for a little more hood clearance, and RTV'd it to the metal
top. Lacking any copper paint, I shot it with some gold in honor of what the
aftermarket wants for one.
The only place it could possibly leak would be through the bolt/stem, in which
case I'll add an o-ring, but I'm thinking it won't. The seal around the bolt is
already pretty-tight. I'll let you know the next time I run it.
I also installed a late(er) model light switch in its original, center hole but it
interfered with the wiper motor behind the dash so I moved it over a hole to
the right. The goofy, chromed plastic knob didn't exactly fit the look so I cut
it off in favor of epoxying on the original from the '36:
And with all of that out of the way it was time to turn to cutting-down the vent windows:
This coming January will be 5 years in the works. Getting to the glass makes
me feel like we're getting close. Here's where I left off for the night, fitting the lower part of the frame: