1-Ton, Yes, you overshot us. Are you in your '51 or another RV? Lower elevation up there = hotter.

I'll be looking up into the crank, etc as you suggest. Up there, though, is beyond my comfort level.

I'm embarrassed to say, my noise has been going on for a time. A video from 2018 has the noise as I took off. I always thought it was the water pump but no.

1948 3/4-Ton 5-Window Flatbed Chevrolet

34 Years. Now with a '61 261, 848 head, Rochester Monojet carb, SM420 4-speed, 4.10 rear, dual reservoir MC, Bendix up front, 235/85R16 tires, 12-volt w/alternator, electric wipers and a modern radio in the glove box.