Electric Water pump?

Oakhurst

Oakhurst

Senior Member
Joe Behgosian in Fresno Ca is currently rebuilding a V860 for my 1933 Sommerset hydroplane (HEBE 0-60). Originally it was direct drive as a race boat and had no water pumps, but used two scoops on the bottom as water intakes. I thought it would be too difficult to handle without a "neutral" so I added a clutch using a belhousing used in midget racing. We are putting in a Model A emergency brake handle to activate the clutch by hand. Obviously when in "neutral" there will be no inertia to force water through the scoops into the cooling system. My question is whether the original style water pumps will create suction to draw water up into the motor.
The two intakes would still be on the bottom of the boat, but just flat screens instead of scoops. I have been told that electric water pumps are now often used in hot rods and work well. Any opinions out there?
 
Any impellerpump needs to be below waterlevel to work well and have very limited pressure capacity, even an electrical coolanr pump don´t do well trying to suck up water.
Usually you have 2 beltdrive brass pumps one for each side feeding a marine engine.
 
flatheadmurre said:
Any impellerpump needs to be below waterlevel to work well and have very limited pressure capacity, even an electrical coolanr pump don´t do well trying to suck up water.
Usually you have 2 beltdrive brass pumps one for each side feeding a marine engine.
Click to expand...

So you're saying, what I expected that the stock belt driven pumps will not be able to draw water from the bottom of the boat? What are the "belt drive brass pumps" you speak of?
 
Had a 59AB powered boat back in the 50's. As I recall the pumps were manufactured to fit the engine for marine use. They used rubber impellers that sucked water from two ports on the bottom of the boat.
Any pump you use would have to be capable of pumping/lifting water and not just circulating water. If you could adapt a stand alone marine pump/pumps to an electric motor, you may find that that will work.
Another possibility would be a single marine pump to a 'Y' to the engine.
 
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51 MERC-CT said:
Had a 59AB powered boat back in the 50's. As I recall the pumps were manufactured to fit the engine for marine use. They used rubber impellers that sucked water from two ports on the bottom of the boat.
Any pump you use would have to be capable of pumping/lifting water and not just circulating water. If you could adapt a stand alone marine pump/pumps to an electric motor, you may find that that will work.
Another possibility would be a single marine pump to a 'Y' to the engine.
Click to expand...

Do the first"marine" pumps you speak of with the rubber impellers fit in place of the stock original pumps?
How is the single marine pump you speak of powered? Others have referred to to Jabsco for a 12 volt electric pump.
 
Oakhurst said:
Do the first"marine" pumps you speak of with the rubber impellers fit in place of the stock original pumps?
How is the single marine pump you speak of powered? Others have referred to to Jabsco for a 12 volt electric pump.
Click to expand...

Yes they bolted directly to the 59AB engine and used fan belt but looked a little different.
If Jabsco has a 12 volt marine impeller pump, that may work. You will have to determine if the capacity suits your needs to run one pump with 'Y' to both sides.
 
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The marine pumps i have are a standard brass type...the front engine mount blocks the waterpassage and the pumps are attached to the front mount.
If you want i can drag out a marineconversin for a 95HP and take some pics tomorrow...think that one is an Osco setup.
 
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Remember that a flathead V8 has 2 water jackets that are separated-- one pump most likely won't provide equal cooling
 
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