Projects No flow from water pump?

hello everyone I just got my 350 back together and it immediately overheated. Neither hose is collapsing both have heavy springs and neither hose is blocked. All ports on the head gaskets lined up perfectly. I removed the thermostat and the block got very hot and the gauge read 250.. removed the top hose from the thermostat housing and turned the heat on no flow? Right now the new radiator is ice cold to the touch and the block is setting at 240? could the impellers be spinning on the shaft? the two housing bolted together have no t-stat in them either..

 

Yes the radiator was filled.

 

Pull water pump and remove rear cover and see.

 

You didn't pull one of my number and left a rag in the inlet of the water pump. Other good ones but not me, Never removed tape covering port/port's before bolting water pump and or intake?

 

Do you by chance have a reverse rotation water pump that you are turning the wrong way?

 

Wrong rotation water pump...

 

if it was reverse flow wouldn’t it push water from the top hose when I removed it?

 

attention!: @31Vicky with a hemi to the red courtesy phone please.

 

I know understand why this was a dumb question... and also now understand why the coolant level was raising in the radiator not lowering.. Thanks everyone!

 

They are reverse rotation, not reverse flow!

 

air block in cooling system likely - need to bleed system

 

read my post above your’s I figured that out.

 

No thermostat installed.. Ok went and bought a new water pump installed and ran the engine. engine immediately overheated.. Popped the cap and seemed that there was still no flow? took the water pump off and installed the one from the ‘58 283 engine still overheated but this time when I popped the cap I was met with scalding hot coolant spraying all over the place. so unlike the last two pumps pressure is building now. but the bottom hose remained cold? Heater blowing cold air?

 

Are you running a serp belt or V belts?

 

v-belt on the water pump.

 

Blower throws another wrench in the fire ! @squirrel

 

I’m second guessing myself so bad right now.. I may or may not have a faint memory of a port being blocked on one side of the intake when I put the new gaskets on.. either way I’m just gonna pull it all back apart..

 

Just looked at the original intake gaskets... there is in fact a port that is not cut out... that port on the original intake gasket that was not cut out had a hole blew threw it.. water jacket port?

 

obviously not a water jacket.. side note random set of heads I had laying around and the original gasket I had on the overheating 350 do I need to cut this port out?

 

Late-style intake manifold gaskets installed backwards.

 

That center port is an exhaust crossover, for carburetor/choke heat.

 

I’m running a manual choke so I’m guessing no Need to cut it out?

 

this!! I’ll have the intake off soon so I’ll find out.

 

That's the only thing that I could come up with that would block flow.

 

It helps with carburetor heat, if you operate in a cold climate, or have icing issues, too.

 

Three differences I found in the head gaskets I took off off the 350 when I tore it down. And the head gaskets I put back on when it just overheated.. a few ports are different sizes and there is a few ports on the metal gasket that are not on the felpros.. Before the tear down the gauge always set at 190 and never moved. So I’m putting felpro’s back on it.

 

Is that a new radiator or an old one? Looks new. Does it flow? Did you remove the caps before installing upper and lower hoses?

 

be sure to read jalopy joker's post as I agree with him. so many times people think deeper than they have to.

 

Show us a photo of the whole setup so we can see where your radiator caps is and where the hoses go?

With that cross flow I am thinking that you are pissing in the wind right now trying to fix an issue that you created when you put that cross flow in with the radiator cap several inches below the thermostat housing and even though you have the radiator full and part of the block full you have a big empty space in the water jackets above the top of that radiator. Unless that cross flow is hell for tall.
You are probably going to need a Tee similar to this in the upper hose at the High point to fill the whole cooling system.