Question about John Deere 4010,4020 Tractor Basic Carburetor Repair

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Where to find assembly diagram for marvel schebler usx-20 carb?

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Posted on Jan 02, 2017

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  • 33 Answers

SOURCE: tech says i need a new carburetor marvel schebel

there should be no reason why you can't rebuild it,as long as casing isn't cracked

Posted on Jul 04, 2009

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agent91
  • 2100 Answers

SOURCE: I have a Marvel-Schebler carburetor, Model Tsx. My

There are no needle bearings in the carb, they came from someplace else. And I suspect a connecting rod. The only place I can think off where they could have come from. And I'll tell you why. I had a 66 Saab, 3 cyl, 3 carbs, 2 stroke,4 speed on the column, front wheel drive, rack and pinion steering, way ahead of it's time. Neat little car. Never got stuck. But, I had a problem once with a piston slapping, I could stick my finger in the spark plug hole and feel the piston come up and fall down, I said what the? So I replaced the engine, I had a spare. Took off the head and the top of the piston was just peppered with needle bearings from the wrist pin. How they got up there , I don't know, but they were there. Hope this helps.

Posted on May 06, 2010

vincob
  • 718 Answers

SOURCE: have marvel-schebler tsx-428 carb on'53

Ya know what maybe check your floats.

Posted on Aug 21, 2010

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Carburetor diagram marvel schebler


wot is the problem with the carb , they are very easy to rebuild !? place all bits on white paper , clean all parts and blow out the jets and all dirt in the carb and check the float needle is clean and no grooves on the tip and moves freely in place ! put floats in a bowl of fuel and make sure the float ! slowly re fit all parts , float level is approx flat wen carb is held upside down ! re fit and fuel up and hope you have fun ! P...

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Have a John Deere 3020 with a Marvel-Schebler carburetor. Not staying running seems like its out of gas and it is getting fuel it runs a short wile and dies pump the fuel pump manual pump and it runs for...


Have you checked that your float is working properly in the carb? If it is sticking with the plunger shut it will block fuel inlet regardless of having fuel supply?

Have you checked to see if there is definitely fuel in the line at the carb when it's acting up?

Have you made sure that there is still spark when it quits running? You could have something that is grounding out when it warms up and makes it quit firing that while you 'fuss' with gas issues, cools enough to spark then fails again. Hard to say without more details. Also are you sure there isn't a clogged fuel filter in the tank, carb-inlet or inline somewhere?

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I have a Marvel-Schebler carburetor, Model Tsx. My carb had needle brings in throttle shaft. When I removed throttle shaft the needle brings fell out. The kit does not have new bearing in kit. What is the...


There are no needle bearings in the carb, they came from someplace else. And I suspect a connecting rod. The only place I can think off where they could have come from. And I'll tell you why. I had a 66 Saab, 3 cyl, 3 carbs, 2 stroke,4 speed on the column, front wheel drive, rack and pinion steering, way ahead of it's time. Neat little car. Never got stuck. But, I had a problem once with a piston slapping, I could stick my finger in the spark plug hole and feel the piston come up and fall down, I said what the? So I replaced the engine, I had a spare. Took off the head and the top of the piston was just peppered with needle bearings from the wrist pin. How they got up there , I don't know, but they were there. Hope this helps.

May 05, 2010 | John Deere 3010,3020 Tractor Basic...

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