Same here. We're going to pick up another small generator, wish there were "propane only" models. Thanks re fuel switch. My head gets tangled going from liquid to gas delivery.... does the propane condense back down to run through a carb then? Or does it stay as a gas and fed into the chamber ready to go?I ran ethanol free gasoline in my dual fuel generator when it was new but after running the gas empty, it has been run on propane since that time. If I bought another one it would never have gasoline run thru it. From the fuel switch forward I I would expect the path to be the same.
I am NOT a mechanic, but I believe that the way it works is that the propane goes into the carburetor (I believe it bypasses most of the parts of a carburetor since it doesn't need a float valve and such) as a gas, and gets mixed in with air and then goes into the combustion chamber. It would not condense back to a liquid.Same here. We're going to pick up another small generator, wish there were "propane only" models. Thanks re fuel switch. My head gets tangled going from liquid to gas delivery.... does the propane condense back down to run through a carb then? Or does it stay as a gas and fed into the chamber ready to go?
Running it through a carb didn't make sense to me either. If it doesn't bypass the carb completely, then a carb fail (btdt running w/gasoline) would mean propane is useless also.I’m no expert on this, but just based on my knowledge of ICE, it does not make any sense to me for propane to route through a carb.
What is the purpose of a carb? To convert a liquid fuel into a gas, right?
Since propane is already a gas, surely the propane is plumbed to the manifold after the carb… Unless there is a need to lean the propane with more air.
I am NOT a mechanic, but I believe that the way it works is that the propane goes into the carburetor (I believe it bypasses most of the parts of a carburetor since it doesn't need a float valve and such) as a gas, and gets mixed in with air and then goes into the combustion chamber. It would not condense back to a liquid.
Edit: @TipBledsoe ninja'd me as I was typing this.![]()
I was unable to locate any information beyond the owner's manual for my generator. My plan has always been -if it ain't broke, don't fix it.Maybe a schematic would be a good idea.
Don't think my guy would be too thrilled with me taking a new gen apart for learning purposes.![]()
OK. That helps bunches. ThanksIt's not a regular carb. Gas goes the usual bowl/float/needle valve route, propane is metered directly into the firing chamber thru a different path in the carb body. There's a switch/lever to choose between the two. The propane setting will still work if ethanol plugs up the gasoline side.
Same here, and we've a old dual fuel w/a broken carb, that ran on gas, waiting to be fixed. Time to drag it out of storage, drain everything, and hook up a tank.I was unable to locate any information beyond the owner's manual for my generator. My plan has always been -if it ain't broke, don't fix it.
I located a replacement carb for my powermate model on amazon for about $60. I hope I'll never need to replace one.Same here, and we've a old dual fuel w/a broken carb, that ran on gas, waiting to be fixed. Time to drag it out of storage, drain everything, and hook up a tank.
Still getting another one, but the old one would be a nice backup.
Does the propane pass through the same carb that the gasoline does? All my search efforts circle around what I'm trying to learn; specifically - what is the path LPG takes. I'm familiar with ICE using gasoline, but want to learn/understand the mechanics re propane. Links welcome, thanks in advance.
With years of refinery and chemical plants the only issue I remember with propane forklifts was when someone ran out of propane.The forklift guy i used to know told me that propane fueled engines never get slugged up. They run a lot longer than gas engines due to not carboning up. The propane does not foul plugs, and oil is honey colored when changed, not black like gas.