Mark T

around 70 @2000 RPMs give or take depending on the rubber and where it's governed at

The View ?

I remember the picture of the truck when you turned it in at retirement. 😎

Or ???? ya could take a bottoming tap and tap a couple to 7/16 jack it off or a rolling head and pry it off. and NO, I'm not real comfortable suggesting how to jack it off

I think you left out one thing. After WW2 there was a serious concern about Communism. Someone may have figured an oil rich country would be better with Western influence as opposed to Communist influence which surely wouldn't have been exactly polite about the whole affair. Back then, who else was in a position to do it ? Oil was one of the big reasons Hitler couldn't carry out his bat$hit crazy agenda. I'm certain leaders of the time realized that. Ambitious countries need energy, and unfortunately it starts to get ugly after that realization.

IDK about the tractor theory. My money would be on the fact you actually gave a #*ck where as so many guys don't.

I could be wrong, but that cover and input shaft looks worn from the picture.

Probably if you look at the pressure cap on that system, it's on the higher scale. So it needs a good robust line to do the job. Some system have a lighter hose for that, but also operate at lower pressures. Gotta have the vent action going on as the coolant expands and contracts during the cycles .

It amazes me that everyone forgets what these people have been up to the last 40 plus years. Then again, seems no one can remember what they were doing almost 25 years ago either. From FDNY and Never Forget to mondomi (or whatever his name is. That's not even scratch'n the surface of Minnesota.

Pretty standard setup . The tiny one is a vent, the big one is from thermostat to radiator and that one (the blue silicon hose) lets the coolant go from the radiator tank to the engine. That one could be different on different chassis' depending on the recovery tank arrangement. Bit of a bypass if you will. The big part of the cooling job is done by the big hoses (upper and lower) as per action of the thermostat.

The MPs had a sucky thing like Bottlehauler had in the picture. Personally, one of the best things I ever aquired was a MightyVac. They work great for suck'n stufff out like coolant when you have something apart. They work good to get stuff back in components too. I was under the impression cavitation was more the result of piss poor cooling system maintainence. Stuff like thinking coolant is fine as long as it's not leaking out or figuring if it works in extreme conditions just leave it alone....or top it off with tap water. Or using the cheapest coolant even if the manufacturer lists what to use in it (lol) Mixing coolants, like pouring anything in it to shut the light off.

That's it.

Or ????? remove that plug and take your blow gun and blow across it until the coolant comes out after filling it with what goes in at first. If there's afew gallons in it, it'll suck it up to the thermostat housing.

Ya know ???? you'd think I'd have learned to keep my mouth shut about food with the tofu.

Probably about what's really in an Egg McMuffin