this is to jdseller

J

John Eatwell

Member

• Jul 5, 2016

• #1

I had a 4010 gas when I started farming over 50 years ago. It ran terrible, but when pulling settled down and pulled. It burned 9 gallons per hour. I talked to a old JD mech. He said lets try a cast iron 3020 carb and bore the jets out. That made a big difference. Only used 5 gallons of fuel after that and ran so much better. The original carb was an square pot metal carb. Don't know what carb you have but that what I did. Good luck John

 

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notjustair

Well-known Member

• Jul 5, 2016

• #1

I have heard of guys swapping them out and having good luck. I want to say the one I had heard was with Allis Chalmers. As good as the old Farmalls run on gas it would be nice if there were a way to put red parts on it (gasp).

 

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Graham of New Zealand

Member

• Jul 5, 2016

• #1

Thank goodness I bought a Case 830 Diesel in 1996 to drive our New Holland "36" six foot cut double chop forage harvester for our grass silage. Had to push it hard to use 2 gallons (imperial) per hour. Our son still has and uses it. On driving our NH 280 baler on hill country fuel was 3/4 to 1 gal per hour.

 

Tx Jim

Well-known Member

Location

Coyote Flats, Texas

• Jul 5, 2016

• #1

Nebraska tests shows J I Case 830 as burning 4.773 GPH at pto speed.

 

casecollectorsc

Well-known Member

Location

E central SD.

• Jul 5, 2016

• #1

Helped a friend work on a 3020 gas. Wondered why the carb was physically twice the size of a 800 Case which is about the same hp and always run great.

 

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Eldon (WA)

Well-known Member

• Jul 5, 2016

• #1

(quoted from post at 06:38:47 07/05/16)
Nebraska tests shows J I Case 830 as burning 4.773 GPH at pto speed.

Click to expand...

I have never burned more than 2 gal an hour in my Allis 175 diesels...I think those tests were as severe as you can get, probably very few people will hit the max fuel usage (unless they are red or green :lol: ).

 

jon f mn

Well-known Member

• Jul 5, 2016

• #1

Those tests are not real world conditions and are frequently off by a lot. You could maybe get 4 gal/hr threw an 830 but you would have to have it under full load constantly, not something you could achieve doing any farm work I've done. Now you can get a good 5 gal/hour threw a gas 830.

 

casecollectorsc

Well-known Member

Location

E central SD.

• Jul 5, 2016

• #1

They don't use that much fuel if not under full load. What is the hp/hrs per gallon on a 4020 at pto speed??

 

4

4520BW

Well-known Member

• Jul 5, 2016

• #1

dad had a 4020 gas. The only good thing about it was it started in cold weather. Found an old 105 combine and took out the diesel 404 and put it in the tractor. That's the best fix out there!

 

0

01gentdc

Well-known Member

• Jul 5, 2016

• #1

seems like I read here a yr back or so a 180 or 190 allis carb will boly on and run better ,,. ,,. lots of variables , valves , timing , points , will make a 4010 - 20 really nice or horribly wrong ,,. I had a very early 3010 ,, it thought it needed to run on 2 cyl like its ancesters , til it went to work and warmed yp , done a valve job , carb rebuild, timed her perfect , she run like a dream when I sold it ,,. but I would bert a dollar to a donut within a year it was oneryazn again ,. you had to stay on them like killin snakes ,,. kinda like brakes on a big 30 series case ,.. LOL

 

B

Bob

Well-known Member

• Jul 5, 2016

• #1

At 2 GPH, you were making some 20 HP.

<img src = "http://www.tractordata.com/farm-tractors/000/1/8/180-allis-chalmers-175-fuel-use1.jpg">
Take a look at 175 fuel ude...

 

jon f mn

Well-known Member

• Jul 5, 2016

• #1

That's about right. A 175 would be a 3 plow tractor and an average of 20 hp to pull 3 bottoms sounds about right. You would need 40+ hp to pull it up the hills and through the tough spots, but only 10 or so down hill and likely 20 or a bit more on the flats. Same for a bush hog mower, only in tough spots would it take more than 20hp to run it. You need the max hp ratings to get through the hard spots but wouldn't run it like that long term in most cases. And the power used on the ends and to travel is all in the average as well, that would bring down the average some too.

 

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NIK OWEN

Member

• Jul 5, 2016

• #1

WHY R WE TALKIN ABOUT DIESELS, WHEN SUBJECT IS GAS JD?

 

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MikeinKy

Well-known Member

• Jul 5, 2016

• #1

I have had 2 3020 and a 4020 gas. Non would ever run right. Still have the 4020 and it is now a diesel. It is a great tractor now. I put a 4430 engine in it. The best thing I could have done to it.

 

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JD Seller

Well-known Member

• Jul 6, 2016

• #1

John I have not had any time to play with the JD 4020 gas this week. I am going to go through the ignition system before I go any further on the fuel system. IF it keep giving me issues it will get switched to a diesel or find a new home.

 

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Eldon (WA)

Well-known Member

• Jul 6, 2016

• #1

(quoted from post at 09:26:07 07/05/16) At 2 GPH, you were making some 20 HP.

&lt;img src = "http://www.tractordata.com/farm-tractors/000/1/8/180-allis-chalmers-175-fuel-use1.jpg"&gt;
Take a look at 175 fuel ude...

Click to expand...

Another 10 hours today.....10 gallons. Guess I only used 10hp per hr today LOL! I'll take it and the $750 to the bank!

 

E

Eldon (WA)

Well-known Member

• Jul 6, 2016

• #1

(quoted from post at 07:37:46 07/05/16) seems like I read here a yr back or so a 180 or 190 allis carb will boly on and run better ,,. ,,. lots of variables , valves , timing , points , will make a 4010 - 20 really nice or horribly wrong ,,. I had a very early 3010 ,, it thought it needed to run on 2 cyl like its ancesters , til it went to work and warmed yp , done a valve job , carb rebuild, timed her perfect , she run like a dream when I sold it ,,. but I would bert a dollar to a donut within a year it was oneryazn again ,. you had to stay on them like killin snakes ,,. kinda like brakes on a big 30 series case ,.. LOL

Click to expand...

That's funny....the 190 gas is known for carb problems on that tractor!

 

R

rankrank1

Well-known Member

• Jul 6, 2016

• #1

Jon Hagen's post in JDSellers original thread mentioned the carb of a Moline U worked wonderful on a JD 4020.

After ensuring the ignition system is sound seems it would be cheap and easy to try the Moline carb

 

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Jim Phelps

Member

• Jul 6, 2016

• #1

We had a 3020 gas, used it to pull a 4 row planter, it became more cost effective to switch over to our 7020 allis desiel. Finally traded it off, just burnt too much fuel for what we did with it.