Cam driven accessories. Help.

[Tarkmucker]

I’m using the hemi from the AMT ‘53 Studebaker for a project. It has a cam driven fuel pump and water pump. I have a pretty good idea how to plumb the fuel pump but can’t find any info on the water pump. Does anyone have any insight? Thanks in advance 

[Straightliner59]

My Supermodified uses the same water pump, only crank driven. The hoses from the open ends of the pump connect to the bosses on the block where the original water pump mounted. The hoses to the radiator are as usual. Here are some photos that may help--I hope!

[MeatMan]

I'm no Stude expert by any stretch, but I looked up the engine it appears to be and based on the stock setup in your instructions, and what the attached pic shows, you should plumb the water pump to the heads. Dunno which is in or out though.

Edited December 8, 2022 by MeatMan

[Ace-Garageguy]

57 minutes ago, MeatMan said:

I'm no Stude expert by any stretch, but I looked up the engine it appears to be and based on the stock setup in your instructions...

Look again. The water pump in question here is specifically intended for the optional Chrysler Hemi supercharged engine, and has absolutely no relation to the Studebaker powerplant.

[Ace-Garageguy]

Automotive V8 cooling systems typically use the pump to draw cooler water from the bottom of the radiator, push it through the block from the front, where it then finds its way through the heads, and returns to the radiator through the thermostat and top hose.

Straightliner59's hose routing appears to be correct for this kit pump, though it may be difficult to understand fully by someone not well-versed in engine cooling.

The large lower connection of the kit crank-driven pump would go to the lower radiator. 

The two smaller connections are output, and would go to either side of the block where a stock water pump would normally bolt on.

Return hoses from the head faces, possibly connected to fittings installed at freeze-plug locations, are hot water and would go to the top of the radiator.

 

Edited December 8, 2022 by Ace-Garageguy
CLARITY

[Daddyfink]

What is missing is how they are getting the water back into the block on the HEMI. Water ports are on either side of the timing cover area, normally a bypass style tube is place between them if they are using an external pump, with a water inlet on it. 

Similar to this, but on the block, where the pump is, and not the heads, but, you could also go that way 

 

[MeatMan]

1 hour ago, Ace-Garageguy said:

Automotive V8 cooling systems typically use the pump to draw cooler water from the bottom of the radiator, push it through the block from the front, where it then finds its way through the heads, and returns to the radiator through the thermostat and top hose.

Straightliner59's hose routing appears to be correct for this kit pump, though it may be difficult to understand fully by someone not well-versed in engine cooling.

The large lower connection of the kit crank-driven pump would go to the lower radiator. 

The two smaller connections are output, and would go to either side of the block where a stock water pump would normally bolt on.

Return hoses from the head faces, possibly connected to fittings installed at freeze-plug locations, are hot water and would go to the top of the radiator.

 

 

57 minutes ago, Daddyfink said:

What is missing is how they are getting the water back into the block on the HEMI. Water ports are on either side of the timing cover area, normally a bypass style tube is place between them if they are using an external pump, with a water inlet on it. 

Similar to this, but on the block, where the pump is, and not the heads, but, you could also go that way 

 

Well, my reading of the question referred to the cam-driven pump on the racing engine illustration. To me, it looks like an old marine water pump repurposed, but then those of us who aren't well-versed in engine cooling wouldn't know that.

Also, I was under the perhaps incorrect assumption that since there was no cooling fan there was no radiator, which is common for short racing runs where they just need to pump enough water through the engine to keep it from melting.

[Daddyfink]

2 hours ago, MeatMan said:

 

Well, my reading of the question referred to the cam-driven pump on the racing engine illustration. To me, it looks like an old marine water pump repurposed, but then those of us who aren't well-versed in engine cooling wouldn't know that.

Also, I was under the perhaps incorrect assumption that since there was no cooling fan there was no radiator, which is common for short racing runs where they just need to pump enough water through the engine to keep it from melting.

The Water Pump is the snail looking blob at the left side of the pump, or drivers side, and is driven by a common gear with the fuel pump on the right. Inlet and outlet are similar to that of a Turbocharger unit. 

I understood the question as to being how the water goes in and out.

[Tarkmucker]

11 hours ago, Daddyfink said:

I understood the question as to being how the water goes in and out.

I appreciate everyone’s responses. This is what I was asking. Specifically the flow of that pump. I assumed the large cast boss facing down would be the port out to the radiator. I kept finding info on marine pumps but none that looked like that and I was getting frustrated. All of the info provided is appreciated and will be of use. 

[Straightliner59]

20 hours ago, Ace-Garageguy said:

Straightliner59's hose routing appears to be correct for this kit pump, though it may be difficult to understand fully by someone not well-versed in engine cooling.

I failed to mention the snout/tube on the "front" of the pump, as you mentioned, connects to the bottom hose outlet on the radiator. I think I blocked that part from memory! I would have barely had a clue about plumbing the thing, without a search engine! The good old days, weren't so good, in regard to research!

Edited December 9, 2022 by Straightliner59