help with john deere g pullen

[terry kane]

Have a 1952 john deere g. flat head bored over .090 64 hp dyno. have new 14x9x38 firestone feild road tires on 11 inch rim.cant get a good bite.hitch set at 18 inches high just shortend draw bar.10 lbs air in tires .how do i get it to hook up.need to beat brothers super m .havent yet. need help

 

[elkcagg]

Trying to help here but a lot of variables we don't know about that M. How much he beating you by? New tires will pull up more dirt for the sled to push & the longer your tread bars are the more they bend over resulting in pulling out more dirt. Worn down tread with sharp lugs are best. If hes got 16.9 SATS on he already has the advantage. SATS hook the best IMHO. Sounds like you need your tires to bite. Maybe play around with air pressure. I'm running 9 lbs and I still need mine to squat down more. But I've seen guys pull good on wider rims with tires overinflated do well also. I don't know. I'm pulling the same tractor as you & I'm still trying to figure this out. Good luck

 

[Anonymous-0]

You state that its a 1952 G flat head? Are you talking about the engine?
All the Gs I have seen have overhead valve engines.

 

[The Dukester]

I've got a '51 G that is very much like yours, having about the same power and 14.9-38 tires that I pull some and through experience I've learned some peculiar things about my tractor that might apply to yours too. The big engine develops terrific torque to get the power...and that torque comes on in surges because of the staccato firing order and those surges apparently aren't sufficiently absorbed by the flywheel, crankshaft and rotating pulley-clutch assembly because they show up at the drive wheels when the tractor is pulling hard. No doubt these surges tend to make the tires lose traction so I ride the brakes just enough to "steady" the power to the wheels and it seems to help keep the tires from "tearing loose" so quickly as they seem to do with most "peppy" 2 cylinder John Deere G's. Doing the brake riding thing helps a lot if you watch the wheels closely and "snub out" the slip one wheel may develop if it loses traction quickly. Like anything else, experience will learn you a lot and you just might beat that old Super M someday.....it can be done!

 

[Anonymous-0]

A flat head on a G refers to the early old style head. It gives you more compression.

 

[old popper]

Find some 15.5s that are used. Mount the rims on the opposite sides, and drive it about 75 miles on paved (concrete) roads. Then when you swap the rims to the correct side, they will bite. Also, go to your local airport, and buy 100 LL aviation gas for pulling. It is high priced, but money is nothing if you can outpull a FARMALITTLE.

 

[JLG]

11 inch rims seem a little small for 14.9 tires. 14 inch rims fit those tires nicely, and will flatten the tread out more. That'd be what I try first.

 

[buickanddeere]

Been pretty well covered.
No mention of the front end raising . Widen the rear rims and lengthen the drawbar until the front end is levered up for the last 10-20ft .
Type of track and length of chain?

 

[terry kane]

This snounds a lot like what its doing.going to try it and see what happens.I ajusted my rpm up little more to get more speed in 1st gear .just tryen stuff to beat this super m of my brothers.got a pull commen up at the fair maybe i will get a win under the lights.b a 1st for me a lot of money in the john deere g . thanks

 

[terry kane]

Most of the time 6 to 9 feet.he has the same tire as me brand new.but on 14 inch rims.he runs with 11 pounds air pressure.i put 10 in mine now and shortened draw bar .28inches from center axle.i think the wider rim will help.but more money to spend but worth it to shut him up.the super m has 57 hp. thanks

 

[Ferd]

I used to pull a G and had the best luck when I put enough weight on the front so it wouldn't come up more than an inch or two.

 

[BushogPapa]

14" rims will put down a better footprint, even at a higher inflation pressure..which also keeps your Drawbar height better under load.

Ron.

 

[RandyB(MI)]

I'm sure you've tried it in 2nd, but at 68 hp in a 2 cyl why are you in 1st gear?

 

[Supercharged 3800]

Because on a good track, especially with a proper length +/- 46" chain, 68HP isn't going to spin 2nd gear. I've seen a G on a good track with 65-70HP not really like 6500lbs in 1st gear. It spun out, but was hurting.

 

[MSD]

Do you have to pull with an 18" hitch? Around here we run 20 which will make a world of difference.

 

[730-LP]

If rules allow draw bar 20 inches high and as short as allowed.Get 14 inch rims.

 

[Tim in West Pa]

wider rims help. Try lowering the air pressure.
G"s seem to pull best when the front end just starts to lift 1 or 2 inches as earlier posted. With the front end lifted slightly you have transfered all the weight to the rear tires and yet havent drastically reduced your hitch height.
Move your weights around if you can, off a belly bar to behind the axle.

Whatever you try, only change one thing at a time.

 

[young gun]

...???? I dynoed my 52 A in low 60's with 16.9's and short.chains (mostly around 3-4 ft), I can spin 2nd even after idling down