706 VS. 656

The rear chassis of 706 is much heavier with dualrange 8 speed plus TA, two shaft PTO 540 and 1000. Same chassis as 7 through 14 in 06, 56 and 66 series.

The 656 is 96" wheelbase and 706 is 104" They use the same 282 diesel. A few 706 near end of production had the German engine. 656 PTO 540 = 1800 engine 706 PTO 540 = 2300 engine. The wide front is basically the same. Both tractors have Cat II - 3 point hitch usually with 1 or 2 auxillery valves. Some of both models were equiped with fast hitch.

I'm guessing here but shipping weights 656 = 6300 and 706 = 7200. TA on 656 will free wheel in low while the 706 will not. 656 has mechanical dry disc brakes, 706 has wet power disc brakes.

IH had a history for using an engine in more than one size tractor. In most cases the engine gained a much better reputation in the smaller tractor. A prime example of this was the C-113 and 123 used in SA, 100 and 130 and with more hp in SC, 200 and 230. The engine saw many more hours of trouble free service in the smaller tractor.

You see guys on this site discussing how much horse power they can get from a particular engine. No question you can get 250 hp from a 1066, but for how many hours? Every engine has a trade off between maximum power and hours of service.

The 706 had a bull-gear final drive, not a planetary.

Yes, but don't the axles actually drive thru a set of 3 pinions out at the final drive axle housing?

Never been in one, but this was my understanding, anyway.

I was noticing a 'ticking' noise in my 966 while easing down the road at low throttle in road gear. Called the IH mech out from town, cost me $100.

He listened to it and told me that the sound was just coming from those pinions out in the axle housing under light load just 'tapping' against their stops. Was he lying to me?

Allan

She is in the final stages of the birth canal as we speak..... ...waitin', waitin' waitin.....

I told 'em I was in no hurry. Dumb Allan, Dumb Allan!!! :>)

Later Dude,

It just dawned on me....when I was talking about the noise in the rear of my 966, I was talking about the one I used to have.

The one I'm waiting on is gonna be in SLIGHTLY rougher shape. As in locked engine, hasn't moved a wheel in 5 years, kids have busted all the windows out of the cab, etc., etc. (In other words, just a nice old tractor).

Good news is that I'm gettin' it for a song (salvage price).

Allan

This deal is kind of a weird one and the very first thing I have to do is to assess what is really there and what isn't. I had found another one across town, but had to decline on it, as that one was pure, uncut junk.

The story goes something like this: The dealer here sold this feller a new loader a few years ago.

For some reason, the tractor ended up setting for a number years in a lean-to shed; I don't really know if the engine locked first or not, but the dealer says that no, he is sure that the engine has locked because of non use, because the owner didn't even know it was locked.

The owner thought the batteries had gone dead from setting for so long and had called the dealer to bring out some new ones to the farm. In the course of trying to start the tractor, the dealer is actually the one who discovered the locked engine.

Anyway, the owner, so the story goes, has fallen on hard times and needs to generate some cash so he's come back to the dealer to sell back that almost new loader, knowing full-well that the tractor is now all but worthless with it’s having that locked engine.

End game is that the dealer tells me that he has always done the service work on this tractor, knows it well and is confident that it is a good clean, straight unit except for the cab (which the kids have broken all the windows out of) and of course, that darned engine.

He has found a new owner for the loader and then it is up to me to decide if the tractor is salvageable or not. He had quoted me a price that is lower than what I paid for my old H, so who knows?

If, when it gets into town, I think I can save the tractor, I'll have the dealer drop in an engine and have him just pull that cab and put on a pair of fenders.

It all depends on the hours on the tractor and what everything else looks like, I guess. Should be interesting.

The downside is that the dealer knows fullwell that I am dumber than an old milk-pail full of fencing staples and that I will do just about anything to own another 966.

It’s the same old story; everybody comes out a winner except my bank account. :>)

Allan

Guess I've been under a wrong impression all these years. :>)

Allan

They are two totally different tractors and this is the horsepower point where the chassis style changes.

I guess the main difference is the planetary style rear axle drives on the larger style tractors.

Along with this larger chassis also comes the different hydraulic system with the power clutch, power T/A and the power brakes.

The fastest way to tell the difference in the two chassis styles is to look at the rear axles. Six sided rear axle housings are on the big style and the square axle housings are used on the smaller style.

Another thing is to look at the batteries. The large body style carries the batteries with one along each side of the tractor.

The smaller style carries one battery in a compartment under the steering wheel area and the other back along the seat on the operator's platform.

Hope this helps,

Allan