Posted by phil25 on September 22, 2022 at 16:46:32 from (24.222.68.100):
Good evening: A question of what took place today when a JD 4020? was run out of fuel. With the lower bleed screw (pump body) i got bubble free fuel within a few cranks,closed it and opened the upper bleed screw and no bubbles or fuel..? Rolled it over a few more times looking for air, and it started to make white smoke/barked and started... Still there was no fuel out of the upper bleed ? Are you able to learn me why/how this happened ? I can only think the upper bleed is blocked inside by dirt? and it self bled the lines/injectors as i rolled it? As for running/power no loss noticed using a 6ft bush hog. Curiously can kill the cat...on this one. Tks for your thoughts
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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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