Posted by bob in SD on June 03, 2012 at 17:18:22 from (75.102.191.177):
This message is a reply to an archived post by JD2ACWD on July 25, 2010 at 13:03:48. The original subject was "JD 3020 gasser".
Quite awhile ago JD2ACWD 07-25-2010 13:03:48 69.4.113.88 said:
I was cutting hay for a couple hours tractor ran fine, just getting ready to pull out of the field and it quit,it will start for a second then quits,its getting gas,I opened the drain on the carb and gas pours out,...
LincolnIA and others seemed to think it was a fuel problem. I'm having the same issue. If I put a timing light on it, the spark seems OK until it stalls out/slows down. There doesn't appear to be unburnt fuel coming out of the exhaust. I replaced my fuel filter (just before the fuel pump) with a new clear plastic one and the problem is the same. The filter doesn't fill up (is this normal?). I disconnect the filter at the downstream side fuel pours out, but the filter doesn't fill up. If I take out the plug on the bottom of the carb just after it stalls a tiny amount of fuel comes out, so I suspect it's not getting gas. The tank is just about full.
Gerald and others have mentioned some screens inside the tank. If I look down the filler neck all I get is the reflection back in my eyes and can't see the bottom (what I see looks clean, but I suspect it's just the inside of the top of the tank.
Questions:
When the fuel pump fails, does it only cause problems on the bottom third of the tank? If I crack the fuel line at the carb, fuel seems to pour out, even when the engine is not running.
Should the clear plastic fuel filter be full? It's oriented so it's about 30 degrees off of horizontal w/ the inlet "up". It appears empty but I can see gas surging into it as the tractor idles and gas pours out of the outlet when I disconnect it.
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Today's Featured Article - Engine Valves - Some Helpful Information - by Staff. Intake - On the intake stroke the piston moves doward, sucking in carburized fuel through the open intake valve. Exhaust valve is closed. Compression - With both the intake and exhaust valves closed, the pistons upward stroke compresses or squeezes the fuel into the combustion chamber. Firing - Ignited by the spark, the compressed fuel explodes and forces the piston downward on its power stroke. Intake and exhaust valves are closed. Exhaust valves and seats are exp
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