I once had to se a safety pin to hold a throttle cable to the carb.
Bedford HA van at night.
Torch failed halfway through repair so finished by feel.
Only pricked my finger a few times!

A fitter in our factory was changeing the oil on his car and remembered he welded the drain plug in the previous time.....
He drilled several holes in the sump to drain it then pop riveted them afterwards....seemed to work..

He also fabricated a new " rad" from copper tubing with soldered joints. That also seemed to work...