Reply With QuoteNot only does heat rise but...
if you put the water in the top you are not "filling" the exhaust manifold and you may have hot spots (interpreted melted spots) and steam pockets within the manifold.
Always in the bottom out the top.
Unless you want to re-invent thermodynamics, I would have to say "Yes". Heat rises. Cold water pumped into the bottom which leaves heated at the top.
I have a 1947 John Deere model A, which has a radiator and fan, but no water pump, that's how it was manufactured. So how does it circulate the water to cool the engine without a pump? Thermo-siphon system, it all has to do with physics.
Not only does heat rise but...
if you put the water in the top you are not "filling" the exhaust manifold and you may have hot spots (interpreted melted spots) and steam pockets within the manifold.
Always in the bottom out the top.
Did the same thing once, sucked up a rock about the size of a nickel into the cooling line, found the rock blocking the manifold intake hose, cooked the manifold......
Hey,Cas. My olds runs at 1300-1400 deg exhaust temp when out playing, good to have Bassetts. perfect plug color and fourth year on engine.
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