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#1
06-03-2014, 10:17 PM
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One cylinder floods with gas
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Engine will start and run for about 4 seconds then die and will not restart. Pull both plugs and a lot of gas will shoot out of the right cylinder (if sitting on tractor) but the left cylinder is dry. I disconnect the vacuum hose to the fuel pump and after a bit of cranking the engine will start and run just fine, but only if the vacuum line remains disconnected from the fuel pump. The engine will continue to run if I connect the vacuum line just long enough to keep gas in the carb. If I connect the vacuum hose while the engine is running it will die in about 4 seconds. I'm far from a carb expert, but I'm suspecting my problem may be in there? Would a stuck float do this? Maybe it doesn't close and pumps gas into the engine? . 
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#2
06-04-2014, 06:08 AM
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Can you use a small tank and gravity feed the carb? That would eliminate any fuel pump issues. I would also check the ignition module to see if you have fire in the right side hole. If that all looks good you may want to do a compression and or leakdown test on the cylinders.
__________________
This ain't no hobby....it's an addiction
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#3
06-04-2014, 07:00 AM
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I'd do as Oak suggested but I suspect that the carb is in need of a rebuild if the tractor sat for a long time.
__________________
2264 with 54 GT deck 1641 AKA Black Jack with a 402-E Haban Sickle bar mower JD317 dump truck BX2670 with FEL
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#4
06-04-2014, 07:51 AM
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What model of tractor are we talking about here? Which engine is it? If only one cylinder gets wet and the other one doesn't, I suspect something other than carb issues.
__________________
Matthew B  1972 129 w/hydraulic lift and head light option soon to be repainted
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#7
06-04-2014, 02:05 PM
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Quote:
It may very well be a bad needle and seat. That's where I'd start too. But, I think Oak had the right idea about a dead cylinder. Sounds like multiple problems to me.
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#8
06-04-2014, 03:33 PM
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I took the float bowl off and the float is full of gas, guess it leaked in somehow. I found a new one locally for $11.28 that I'm going to put in and see what happens. I cranked the engine with the float bowl off and the needle and seat seem to be working fine.
__________________
One lonely old 1541, 3pt, Brinly plow and cultivator.
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#9
06-04-2014, 03:45 PM
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Quote:
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#10
06-04-2014, 03:58 PM
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I took the carb off to check the float, needle, and seat. While the carb was off the motor and the float bowl off the carb I wanted to confirm that the needle and seat actually would shut the fuel off, so I connected the gas line to the fuel pump and cranked it and gas poured out the bottom, lifted the float and it did shut off. I did it just as a test to be sure everything was working right since I suspected my gas soaked float was the problem. Just peace of mind before reassembly.
__________________
One lonely old 1541, 3pt, Brinly plow and cultivator.
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