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Re: Frost on the Manifold
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Posted by paul on February 15, 2004 at 09:15:52 from (209.23.145.14):
In Reply to: Frost on the Manifold posted by JKC on February 15, 2004 at 07:42:05:
As the gas gets drawn through the carb & turns into a vapor, it draws heat from the air/ metal/ whatever around it. this chills the metal of the carb, and causes frost to form on the metal. It's a natural deal, the heat loss always happens. some tractors are known for having too much heat to the carb, they never frost over but they might vapor lock. Others are known for running too cool, and don't vapor lock but will frost over. About as much frost can form on the inside as on the outside, so you have to consider gasline antifreeze on these machines. It's often a bigger problem at 40 degrees when it's real humid rather than in dry air when it's 10 degrees...... Some machines came with shrouds or shutters that helped keep or vent extra heat to the carb. --->Paul
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