Question about John Deere 3010,3020 Tractor Basic Carburetor Repair

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3020 John deere experiencing engine shutting down but wull restart immeadietly run for perhaps 30 seconds then will shut down again and will again restart immeadietly but will not continue running. operator checked fuel return line when disconnected fuel ran out of the pumphousing he bbserved no restricyion but did not blow baack thru to the tank to check to see if the return was open. He then installed new fuel filters unit again started and behaved as before. Initally he had drained the filters and did not detect water or contaminent in the fuel.Note this tractor has been preforming properly prio to this event.I am wondering if there may be something stuck in the metering valve although the operator told me that when he had checked for fuel return restriction and when he had restarted the unithe even had somewhat of a throttle response then the unit shut down in about 30 seconds thank you nelson

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  • John Deere Master
  • 15,557 Answers

Gasoline or diesel?

Posted on Mar 11, 2017

6 Suggested Answers

6ya6ya
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Posted on Jan 02, 2017

wilsodfarm
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SOURCE: 3020 carburetor ? john deere gas tractor, 3020

those carbs are real simple you will not have any problem

Posted on Jul 29, 2009

  • 165 Answers

SOURCE: John Deere 6420 shutting off

Take apart fuel line around tank and blow out. Might also be something in tank that is getting sucked over the outlet. Clean out fuel tank

Posted on Feb 27, 2010

  • 52 Answers

SOURCE: John Deere 445 Garden Tractor, starts immediately,

could be bad gas, but it sounds like a choke problem. did it sit over the winter with less than a half tank of gas in it. try putting some rubbing alcohol in the fuel or draining the tank and disconnecting the gas line so you can drain the gas out of the carb. also check the gap of the spark plug and make sure that is correct. when was the last time there was fresh oil put in. also check the air filter, it could be full of dirt.

Posted on Apr 18, 2010

Testimonial: "Thanks for the ideas. I will try your suggestions. Tractor used for snow blowing during the winter and gas did not stay in it long. Good ideas!"

miket756
  • 2702 Answers

SOURCE: engine cutting off after engaging the pto (mower deck) JD 317

its likely to be a switch playing you up try hard wireing the switch to see if it stops this cutting out first, do one switch at a time till you fine the one playing up

Posted on May 02, 2010

  • 1 Answer

SOURCE: John Deere will not start.

If you have gas running down to the carberator ( take the fuel line off and make sure there is gas running to it or there may be a screen or filter plugged by the tank or on the way to the carb) if there is gas there the problem lies in the carb itself. If you have some mechanical ability you should be all right as it is not rocket science. If you are comfortable with taking the carb apart the first thing i would check is the needle vavle. With the carb apart you will see a big brass looking thing this is the float, right above that is the neddle valve, that is the first place they seem to stick on me. Move the float up and down if the neddle above it doesn't move or sticks there is your problem. Spray it with carb cleaner and see if it moves freely. You may have to dismantle the carb to get it to work freely. If it won't buy a carb kit and install all the new gaskets needle valves and jets ( this is a very good ideal any how) Also make sure any little ports in the carb are open ( in the bottom of the carb there may be tiny little holes that are plugged) find a very small wire to clean them with and also make sure when you are done you can spray carb cleaner thru them. This is why they have a small straw on the can with it ( watch your eyes and wear safety glasses as you never know where it will spray out from) That stuff will dry your skin out fast so don't get it in your eyes and you may want to wear rubber gloves. Also be very careful when putting back together as there are little pieces that like to slide around and fall out or may get bent even worse you don't want them in your motor. Also try to count every screw you turn as these are jets and you will want to put them back to the place they were set at cause it's a pain to get them set right by adjusting them later. Do not force anything putting it back as you may bend the jets or float and you will have to take it apart again and replace them as well. Take your time and be patient and you will be just fine

Posted on May 08, 2010

Testimonial: "thanks...you gave me encouragement to give it a try. I took off the shroud, air cleaner box and couldn't take off the carb as there are no heads on the four bolts that hold it on. Looks like it was designed not to be removed? I took off an inspection plate on top of the carb and cleaned all of the channels and ports within with carb cleaner and compressed air...still no gas flowing thru carb...unless I force with compressed air. Any other thoughts? It is a twin cylinder OHV B/S. Thank you. "

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