Posted by Ryan - WI on February 06, 2010 at 07:48:40 from (66.114.188.228):
Textrout said: (quoted from post at 09:34:18 02/06/10) I have had periodic frosting and then it goes away and runs OK for a while. Then looses power and eventually dies (wouldn't pull your cap off your head.) Ideas? Won't restart for a good while when this happens. Seems to be a fuel flow problem, but need to check the air as well.
I haven't checked for a fuel filter mentioned above, so will do that too. I assume you clean them as you would most felt filters? Thanks for any help you all can give me.... the tractor is stuck in the field as I write.
Textrout, that is usually caused by either low coolant or a plugged line between the cooling system and the vaporizer. A propane engine like this actually uses the cooling system to warm the propane to keep it vaporized. As the propane flows through the hoses it cools them down and frosts them, staying in liquid form. It is kind of like vapor lock but in reverse. There should be a couple small hoses that connects to the vaporizer (which is the first thing that the intake hose goes to). If there isn't any coolant flowing here the vaporizer freezes up and you end up with little to no fuel flow.
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