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pressurized cooling system??

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Post  stanggt August 21st 2011, 7:37 pm

How long does it take for these built big block fords to create pressure in the radiator,hoses etc?
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Post  bosshoss August 21st 2011, 9:23 pm

Pressure in the cooling system is a function of heat. The more heat you generate the faster the coolant in the system heats up. Then you throw in a ton of variables like coolant capacity, water pump flow, radiator capacity and efficiency, thermostat type and rating among many others.

dkp
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Post  stanggt August 21st 2011, 9:27 pm

bosshoss wrote:Pressure in the cooling system is a function of heat. The more heat you generate the faster the coolant in the system heats up. Then you throw in a ton of variables like coolant capacity, water pump flow, radiator capacity and efficiency, thermostat type and rating among many others.

dkp
so it can start to build quickly as these engines seem to gerate some heat preety quick.
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Post  cool40 August 21st 2011, 9:34 pm

stanggt wrote:
bosshoss wrote:Pressure in the cooling system is a function of heat. The more heat you generate the faster the coolant in the system heats up. Then you throw in a ton of variables like coolant capacity, water pump flow, radiator capacity and efficiency, thermostat type and rating among many others.

dkp
so it can start to build quickly as these engines seem to gerate some heat preety quick.
not realy,just look at the temp.if you have psi fast you have a problem.
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Post  bosshoss August 22nd 2011, 12:12 pm

Pressure without temperature can come from a blown head gasket where cylinder pressure leaks in to the cooling system. While running the engine with the rad cap off you should be able to see bubbles in the rad and smell the exhaust gases being released. I have also seen a frozen thermostat cause pressure to back up quickly and push water out the cap and overheat.

dkp
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Post  stanggt August 22nd 2011, 6:06 pm

bosshoss wrote:Pressure without temperature can come from a blown head gasket where cylinder pressure leaks in to the cooling system. While running the engine with the rad cap off you should be able to see bubbles in the rad and smell the exhaust gases being released. I have also seen a frozen thermostat cause pressure to back up quickly and push water out the cap and overheat.

dkp
I just put brand new scj aluminum heads on it with new failsafe thermostat, felpro gaskets. I just pressure ckd system today and pressure never droped off so I would have to believe there isnt any leaks. Just seems to start building pressure fairely quick .Its not pushing water pass the cap or anything so its not getting above 15 pounds as that is where the cap ckd out at. It sure does sound good though Laughing
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