Bulletproof cooling system

Jump to: navigation, search
(When coolant boils)
Line 5: Line 5:
 
==What causes overheating?==
 
==What causes overheating?==
 
The cooling system works by absorbing, transporting, and dissipating heat. Therefore, anything that impedes any of those functions can cause overheating.
 
The cooling system works by absorbing, transporting, and dissipating heat. Therefore, anything that impedes any of those functions can cause overheating.
 +
 +
*Low coolant level or loss of coolant.
 +
*Defective thermostat.
 +
*Poor airflow, damaged fan clutch, or broken fan.
 +
*Collapsed radiator hose, loose or defective water pump impeller.
 +
*Defective radiator cap.
  
 
Heat flows from higher temperature to lower temperature. A car's engine is generally cooled by keeping it in constant contact with a cooler fluid. As soon as that circulation is impeded, temperatures rise. The radiator must also be working efficiently to transfer engine heat to the atmosphere, and the thermostat must be in perfect working order.
 
Heat flows from higher temperature to lower temperature. A car's engine is generally cooled by keeping it in constant contact with a cooler fluid. As soon as that circulation is impeded, temperatures rise. The radiator must also be working efficiently to transfer engine heat to the atmosphere, and the thermostat must be in perfect working order.
Line 17: Line 23:
 
It's easy to assume that cooler temperatures are better. However, they really just give you more of a buffer before the boiling point is reached. However, a properly functioning cooling system can really operate just fine at any temperature under its boiling point. If a cooling system is taking on more heat than it can dissipate, it will eventually overheat, regardless of the temperature at which the thermostat opens.
 
It's easy to assume that cooler temperatures are better. However, they really just give you more of a buffer before the boiling point is reached. However, a properly functioning cooling system can really operate just fine at any temperature under its boiling point. If a cooling system is taking on more heat than it can dissipate, it will eventually overheat, regardless of the temperature at which the thermostat opens.
  
This is why using a lower-temperature thermostat often doesn't solve overheating problems. The heat that the coolant takes on must be roughly equal to the heat that it dissipates. :)
+
This is why using a lower-temperature thermostat often doesn't solve overheating problems. The heat that the coolant takes on must be roughly equal to the heat that it dissipates.
  
 
==Bulletproof cooling system tips==
 
==Bulletproof cooling system tips==

Revision as of 16:28, 6 January 2010

Personal tools
Namespaces
Variants
Actions
Navigation
Categories
Toolbox