'32 VL Hand oil pump operation

[knucklehead 61]

They are leather cups, not rubber. once installed, there is a cotter pin that keeps the screw from coming loose at the bottom. Sean at Competition Distribution has them available.
Also: do not use teflon tape on any of the oil lines. you can use teflon paste, but ez-turn is a far superior product for sealing the threads, flair fittings, petcocks, & intake manifolds.

[loch]

Thanks, Knucklehead!

Good information!

I didn't know about the cotter pin, makes sense. I pulled mine apart and there was a thin piece of wire through the hole. It's probably a bad attempt at lock-wiring the screw in place.

[loch]

I got the oil pump leathers this week. Going to install them tomorrow. I'm guessing I should lubricate them with a bit of engine oil before installing?

Speaking of engine oil - what weight of modern engine oil should I use in this old machine. I'm guessing a single weight, maybe 50 or lighter since it's cold now? Below 50F most days.