Farmall A Tractor Pulling Problem

Tony (A2, MI) · Jun 4, 2010

Hello,

I took my son to our local tractor pull with his Super A. Before the junior pull, there was a sponsor pull with 2500lb tractors and all pulled the sled fine. A couple of kids went before my son with no problems. My son had his turn, and he handled the clutch and all fine, but all that happened was the right tire spun and he went nowhere.

Any ideas?

Thanks

Smith in TN · Jun 4, 2010

Do you have real wheel weights?
Do the rear tires have good tread?
This is a real long shot but you should have a thick cast center wheel on the right side and a thinner stamped center wheel on the left (engine) side.
I have never done tractor pulls, so that is all the knowledge I would have on the subject.
I hope nothing is broken in the rearend.

Jg20601 · Jun 4, 2010

On my 140, the right tire has always been pressure sensitive. Doing farmwork, it pulls best at 11 psi. If it is too high it would bury the right rear tire trying to plow or disc.
This winter when I tried snowplowing for the first time with it - I had a similar problem. When I put the valve stem at the top and tried to unscrew the valve cap to check the pressure - I unscrewed he whole valve..lol
I got it put back in just in time, but it moved snow 100 percent better with the low pressure.

Did he try the right brake pedal at all? just wondering.

Andrew Z · Jun 5, 2010

lower the tire pressure to between 5 and 6.5 psi. You prob wont be able to run much for additional weight maybe a 100lbs or so given 150lb driver.

Andrew

Tony (A2, MI) · Jun 5, 2010

Thanks. He did not try applying the right brake. The tires are at about 9psi. Seemed so odd that no one else had issues and he just sat and spun. I am not sure how sensitive they are to weight distribution,but since it is a Super A, it has a bit more weight in the center and no ability to add weight. He weighed in at 2565 in a 2600 pound class.

I guess I'll have to figure out a way for him to practice at home to see if tire pressure can make a difference.

Is it possible something is wrong in the rear end? Is it normal for one tire to just spin. Seems like the other one should be kicking in to try and do the work.

Thanks,

Tony

Pete76NY · Jun 5, 2010

Depending on the track, I will get my tires down to as low as 4 lbs or so...also did he start with the RPMs high? Esp. important with smaller lighter tractors to start the sled moving at low RPM and feed more in as you start to move...even working the clutch well, if the RPMs are up to high it'll spin!

Pete76NY · Jun 5, 2010

Depending on the track, I will get my tires down to as low as 4 lbs or so...also did he start with the RPMs high? Esp. important with smaller lighter tractors to start the sled moving at low RPM and feed more in as you start to move...even working the clutch well, if the RPMs are up to high it'll spin!

Pete76NY · Jun 5, 2010

Depending on the track, I will get my tires down to as low as 4 lbs or so...also did he start with the RPMs high? Esp. important with smaller lighter tractors to start the sled moving at low RPM and feed more in as you start to move...even working the clutch well, if the RPMs are up to high it'll spin!

Anonymous-0 · Jun 5, 2010

I pull a Super A at a few shows during the summer and I have a rear wt on the right hand side to help balance it out.
If you can get to a scale ( at a grain elevator or some place) back 1 rear tire on at a time and see what that side weighs and then do the other side and try and make them equal.
Mine pulls pretty good!

Anonymous-0 · Jun 5, 2010

Try hooking the clevis over 1 hole to the right. That should put a little more down force on that tire.

FiremanKyle · Jun 5, 2010

was this pull in MI?

Farmall A Tractor Pulling Problem

Tony (A2, MI)

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Smith in TN

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Jg20601

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Andrew Z

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Tony (A2, MI)

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Pete76NY

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Pete76NY

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Anonymous-0

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Anonymous-0

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FiremanKyle

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