Tuesday, December 6, 2011

The Bowels of Winter

A major portion of getting the car ready has been winterization.  This car lives in Minnesota.  Furthermore, it lives in an unheated garage in Minnesota.  Today's high was a balmy 15 degrees Fahrenheit.  I'm not really complaining about the heat but it did mandate the car get actual coolant in the lines.  During the build I solely put distilled water into the system and leaving it that way would probably necessitate installing new frost plugs in the spring.  So Jim helped flushed the system and we put in some fresh 50/50.

Explanation for People Who Don't Really Care about Cars
Every car has some form of engine cooling.  Engines generate heat and if too much is trapped inside, it will fail to really operate properly.  The most popular form of modern engine cooling is liquid cooling a.k.a. water cooling.  There are a few key components to this system:

  • The engine, it actually generates the heat, and moves the car.  It also has a part on it called, "the Water Pump."  The water pump is important because it actually pulls cool water from the radiator into the engine.
  • The radiator.  This is the part where all the water generally goes.  When the "low coolant" light comes on, you generally are putting water into this.
When the engine is turned off there is water left in the engine.  This good, this is how the system is intended to work.  However, when water gets below 32 degrees Fahrenheit (0 degrees Centigrade) it will change itself into ice.  This is problematic.  If a pop-can gets left in the freezer for a little too long you get a mess, the same thing happens with an engine, leave it with just water in the engine for too long and you get the same style mess.

Recognizing this potential problem, most engines have "freeze plugs" which will pop-out before the entire engine turns itself into the can of Coke someone really needed to have cold fast.  The real prevention mechanism is to add "antifreeze" or "coolant."  We put in Prestone's best green goo, mixed with some water, and so the car should now be very comfortable for the winter.


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