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340 Farmall starts but wont run

A

Anonymous-0

Well-known Member
I have a 340 Farmall that I acquired and have been working on rebuilding, I"ve got good spark and gas flow out of the sediment bowl and if I spray starting fluid into the carbirator it"ll start and immediately die. I can keep it going if I continue to ad starting fluid but it acts like it"s not getting gas, the sediment bowl gas line and carb are all new, am i missing something obvious?
 
I also have a Farmall 340, but will relate something on my Allis Chalmers CA. It was struggling under load (propelling me and it up grade on a tractor ride). I checked the flow, knowing old gas in the tank, a little water in the bowl, drained the bowl. Later it popped off a few times in the driveway then gave up. Looked like fuel in the bowl, but upon closer look, it was all water. Try fresh fuel. I peeked in my 340 tank and it has pitted rust, but not junk plugging the tank hole, well, there is the gauge float that obviously is no good. You may have already done so, but check the condition of the plugs. Not all plugs are created equal and fouled can give problems. Others more knowledgeable will chime in w/info also - great site this is. Tell me more 'bout your 340, lot's of 340 enthusiasts here, good luck and post back w/problems or solution you found to help others out.
 
Pull the drain plug out of the bottom of the carb and make sure you have a good steady flow of gas there. If you don't then the float is stuck. If you do then put your hand over the air intake of the carb and make sure you have good suction there
 
I put a carb. kit in my Super M. It almost drove me nuts I must have taken the botton of the carb. off 5 times. first it flooded then no gas. I found that I had to trim the new gasket the float was hanging on it. Sometimes those little things will get you.
 
Hold your hand over the throat of the carburetor and see if there's good suction on your hand while someone makes an attempt to start the engine. Could be low manifold vacuum. Hal
 
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