Posted by Jon Hagen on January 07, 2008 at 16:20:49 from (12.175.230.56):
In Reply to: Re: Propane Freeze? posted by Mathias NY on January 07, 2008 at 08:46:25:
The engine propane systems convert liquid propane to propane vapor. The converter /vaporizer/ two stage regulator needs a continuous flow of hot coolant through the vaporizer section to keep the refrigerant effect of liquid propane converting itself to propane vapor from cooling the converter assy so cold that little propane vapor is generated. Liquid propane boils at 40 below 0 and will freeze the converter down to nearly that temp without a steady flow of hot coolant through the vaporizer section. Like I posted before your discribed problem is classic of a converter not getting any coolant flow. Usually a clogged fitting in engine or converter,collapsed/kinked hose, or coolant so low that the water pump will not push it to the converter.
I work onpropane motor fuel systems most every day, over 30 years experience. This is a liquid propane system that converts liquid to vapor, the problem is NOT moisture in the fuel which can effect a vapor only system like what heats your house.
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