Tractor gas consumption

relaurain · Oct 11, 2008

Is over 5 gal per hour gas consumption bad for a farmall 706 approx 73 HP tractor which has a loader and the tires loaded?

Anonymous-0 · Oct 11, 2008

Dot know about your gas 73 HP Farmall, but my 67 PTO HP MF-690 with Perkins 4-cyl diesel only burns 1 1/3 gallons per metered hour. Tom

Sidekick · Oct 11, 2008

That sounds reasonable if there is a load on the tractor. My old A John Deere will burn about 4 gallons an hour if you're working it fairly hard.

plow hand · Oct 11, 2008

Try the web site external_link

bill mart · Oct 11, 2008

just looked at the Nebraska test results for a john deere 720 (very fuel efficient). 56.6 horse power at 100% load used 3.15 gal. of diesel an hour. bill m.

Allan in NE · Oct 11, 2008

Just for loader work? Yes, way too much.

Are you seeing any black smoke at the exhaust? If so, something is definitely amiss.

Those things have a real nasty habit of wobbling out the high side jet and over-fueling.

Allan

Lou · Oct 11, 2008

Yes sir I have a 3 cyl and 4 cyl perkins diesel tractor and they are both good on fuel. If I had to run a machine every day Id be looken for Perkins diesels.

buickanddeere · Oct 11, 2008

Is there a dyno handy? The only way to know what the tractor is doing is to load her down and read the HP.
Then tweak the timing for almost max HP without detonation. And lean the mixture until it starts to loose a couple of HP.
Somebody may have the mixtures screws out too far, the aircleaner plugged, the choke blade not all the way open. You can't tell either unless the hose is pulled off the carb air inlet and you actually look.
The centrifugal advance could be stuck as well.
Is there an accelerator pump on that carb. Back off on the stroke until the engine almost stumbles on acceleration. Some tinkerers set the stroke as if they were racing the 1/4 mile.

Walt Davies · Oct 11, 2008

My 1945 case LA 403 CID burns about 5 gallons an hour I don't use it much for farming.
Walt

twopop · Oct 11, 2008

dont try to compare gas vs diesel consumption or power.gas is at least 20% less efficent than diesel

dwrk · Oct 11, 2008

Depends somewhat on what you're doing but I wouldn't run a tractor doing that bad on consumption of anything. I couldn't afford to own it.

Just checked one of mine the other day, '02 JD 7510, 115 hp pulling a 15' no-till drill planting wheat in soybean stubble which is about the hardest job I have for it, used just under 4 gallons of diesel/hour planting 8 acres/hour and it needs a tune-up.

RodinNS · Oct 11, 2008

Sounds about 'normal' to me. Pathetic, but normal.
If that wasn't normal, diesels wouldn't be the dominate ag/industrial engine today...

Rod

JDemaris · Oct 11, 2008

True if equal size tractors. But, a modern 100 horse turbo-diesel will use more fuel doing 20 horsepower work than a crappy old 8N Ford with a flathead gas engine.

Anonymous-0 · Oct 11, 2008

My 706 gas would burn 7 gals an hour plowing with 3-16's in hard clay.

IaGary · Oct 11, 2008

Yep may use more fuel but the 100hp can do the work of the 20hp.

The 20 hp cannot do the work of the 100 hp.

Gary

JDemaris · Oct 11, 2008

Yeah, but the subject is fuel-consumption. Besides, I've had occasions when a big tractor couldn't do the work of a smaller tractor - one reason being the smaller Cat. 1 hitch equipment didn't want to fit on big tractor with Cat. 2.

ramtuff · Oct 11, 2008

I'll second that.I bought 255Massey new in 1978.I pulled a 4/16 IHC plow,8" deep in black gumbo.Did'nt do it intentionally.Started plowing inthe morning plowed utill it died.Used 18 gal in 9hrs.Was also plowing with a 806 it was pulling 5/16.The little Massey would stay right with it all day long. I still have both tractors.The 806 is a 1963,with 2858 hrs,Massey has 1235 hrs.Both are actual hours. Thanks;

ohio · Oct 11, 2008

efficient, yes, power.........The 4236 perkins in the 170-175 Allis was no match for the 226" Allis gas engine. More fuel, but more grunt, too. Even the big 190XT gassers were quite potent. And Thirsty!

OliverGuy · Oct 11, 2008

Check to make sure it"s working as effecient as possible. Some new tune up parts will save a lot in the long run. Want to buy a 1850 gasser and see how it compares? There"s three tanks for a reason. Sounds good though.

IaGary · Oct 11, 2008

If your just talking fuel consumption get a 8 hp garden tractor.

Takes fuel to make hp.

I mowed 195 acres of pasture this summer with 145 HP 1086 in 16 hours with a 16 foot batwing mower. Used 50 gal of diesel.

Don't think and 8N could mow 4 acres a gallon.

Gary

the tractor vet · Oct 11, 2008

Then there was something wrong with it .I would say that over the years i have had more 706 gasser then anybody , both the 263 and 291 gassers . I pulled 4x16 semi mounts and a 13 foot disk with them and working the snot out of then 5 to 5.5 gal and hour on the plow . Yesterday i layed down 30 acres of hay on some of the roughest ground that you would ever want to even think of putting a tractor on . Drove the 8 miles to it mowed it and drove the 8 miles home on 3/4 tank . Now as i said about the roughtest ground i had 500 on the nose and wishen that i had put the 500 on as there were times that i had the ft in the air going up the hills pulling a 1219 John Deere haybine .

the tractor vet · Oct 11, 2008

First off it will only burn that plowing or choppen For chore work 1.5 to 3.5 is the norm . Now if ya want that tractor to run like it should then ya have to know how to tune it correctly . and YOU MUST RUN THE CORRECT GAS IN IT . All the I H tractors built back in the sixtys and seventys ran nothing LESS the 93 octane , now today that is HIGH TEST but back then that was reg . gas as hightest was 105 . If ya keep the valves adjusted the dist. is working like it is suppose to ya run a good plug and we are not talking champions here . and you set the ing. timing BY THE BOOK WITH NO PLUS OR Mins. the carb is in good working order you use 30 weight low ash engine oil keep the air filter clean they will do everything you ask of them and more. For a small hobby farmer they make a great BIG tractor and for a big farmer they make for a super chore tractor that will start way down below 0 . Over the years i have bought and sold somany 706 gassers along with useing them for my hobby farming that i have lost count , my close friends have 706 gasser that they bought from me and use them everyday. Just gave a tune up to the one this evening and now it is ready for winter as that is the tractor that gets used all winter for grinding feed feeding the cows plowing the snow as it always starts nomatter the weather. no pluging it in no either just pull the choke out turn the key push the button and it is running weather it be 100 degrees or -40 it starts .

JDemaris · Oct 12, 2008

Yes, but that has nothing to do with my original statement. Put a four foot mower on your tractor and cut and see how well you do.

Actually, little engines like with an 8 horse Briggs are exremtly inefficient at any power level.

BillinCentralMO · Oct 12, 2008

Shouldn't use that much unless it is under heavy load or overloaded.

buickanddeere · Oct 12, 2008

That isn't the question or the answer.
It's about finding something that maybe making the gasser burn more than it should be.
If serviced and tuned for efficiency the gasser should not burn that much on a loader.

Tractor gas consumption

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