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Farmall & IHC Tractors Discussion Forum
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IH 766

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Ron in Nebr

11-30-2006 16:08:40




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Probably in the archives but I don't have time to look it up- what's the HP rating for a 766? If they're under 90, can they safely be bumped up to, say, 100hp?

Reason I ask is that 90HP is the rated minimum required to run a PTO driven big round bale processor- it's wouldn't be any kind of hard ground pull requiring the power, just the PTO.

Also- what RPM is standard for a 766 PTO? Saw an ad for one close by that I'm interested in pursuing farther if it'll do what I need it to.

Thanks!

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the tractor vet

11-30-2006 20:15:01




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 Re: IH 766 in reply to Ron in Nebr, 11-30-2006 16:08:40  
Yep you can tweek it up to 100 ponys , But you can go better then that just by going to the treuck junkyard and getting a hair dryer off a S model that has a DT 360 in it then you can get more and also better the fuel economy along with more torque .



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Ron in Nebr

11-30-2006 21:33:59




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 Re: IH 766 in reply to the tractor vet, 11-30-2006 20:15:01  
Thanks TV. I'd wondered about a turbo- didn't know exactly what to look for. Sounds like if I had one it'd probably be more than capable of doing what I need it to do.

Now, if only "going over to the junkyard" didn't involve a 300 mile round trip! :)

..... course, I'll worry 'bout that when/if I get the tractor!



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Nat 2

12-01-2006 05:23:16




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 Re: IH 766 in reply to Ron in Nebr, 11-30-2006 21:33:59  
I know a guy who probably still has the turbo and manifold off of a DT360 truck engine.



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Allan In NE

11-30-2006 16:25:08




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 Re: IH 766 in reply to Ron in Nebr, 11-30-2006 16:08:40  
Ron,

Dunno, I owned one new. Kind of a "lame" 80 horse tractor.

Think I'd get a 9 or 10 if you need a true 90 horse at the PTO.

Allan



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Ron in Nebr

11-30-2006 17:00:51




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 Re: IH 766 in reply to Allan In NE, 11-30-2006 16:25:08  
Thanks for the advice Allan. There's no shortage of 9's and 10's offered in the area. Just never seen a 7 for sale before, and it has the cab and loader with grapple I'm looking for also.

Figured if it would do what I needed it'd be more economical to run than a bigger one.....kinda like not going squirrel hunting with an elephant gun. But by the same token ya don't kill many coyotes with a .22 either.

There's a 9 at the IH dealer in Valentine with a cab and loader, but the front axle looks like it's been used for welding practice by the local boy scout troop....pass.

Guess I'll keep looking.

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Hugh MacKay

11-30-2006 17:44:34




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 Re: IH 766 in reply to Ron in Nebr, 11-30-2006 17:00:51  
Ron: At the time my 560 played out in 1978, dealer had a 3 year old 766 diesel with roughly 1,800 hours. I had both 1066 and 656 at the time. Unlike Allan, I was quite impressed with the 766. It had been traded for a new 1086, I knew the owner and knew it would have been serviced well. It was no 1066, but was a lot more tractor than my 656 diesel.

Our dealer sold a lot of those 766s, many of them got cranked up to a 100 hp and worked that way. Long term, at least in our area that 360 had a better reputation than 414 or DT414. It will have dual shaft pto giving both 540 and 1000. I'll bet it will be better on fuel per hp than a 9 or 10.

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Allan In NE

11-30-2006 17:54:42




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 Re: IH 766 in reply to Hugh MacKay, 11-30-2006 17:44:34  
Oh, I'll sure give ya that one.

766 is at least twice the tractor a 656 is. Easy.

My point tho, was that put it in the same game as the 9 and you're gonna be solely disappointed.

I used mine for secondary tillage pulling a disc or packer mostly, planting with the cyclo and would follow the 966 with a 3 bottom plow when we were wanting to cover some fast plowing and it handled all the tasks well.

I'm just saying, considering the frame it sets on, a guy kinda expects a little more out of it. They call it a 80 horse tractor. Think at the drawbar, you'd really be crowding it to reach 65 or so.

Allan

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Allan In NE

11-30-2006 17:12:12




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 Re: IH 766 in reply to Ron in Nebr, 11-30-2006 17:00:51  
Well,

Don't pass up the 766 if it is what you are looking for. You don't see them for sale very often and they are getting a little on the rare side.

Just be aware that there is a HUGE difference between it and a 9. You'll feel like you've lost 3 cylinders.

When I bought my little 686 with the German 310, I knew darned well it would have pulled right with that old 766.

They are kinda like the old 706s with the 282D. Way more tractor than motor. Just my opinion, tho. And besides, it would probably pull your processor okay; just have to work at it is all.

Heck, go get it.

Allan

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Ron in Nebr

11-30-2006 20:04:30




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 Re: IH 766 in reply to Allan In NE, 11-30-2006 17:12:12  
Yep, pulling the processor is no problem. With no snow on the ground(and even if we EVER do get some) a decent M or H could pull the thing- it's all rolling load. That's why I've always figured buying a used tractor from this country would get a guy a decent unit if the engine/clutch/TA had been overhauled- they've never had to actually PULL for a living like a tillage tractor would have spent most of it's life doing.

Thing is, when you're feeding a bale, once they get down to the hard-rolled center of the bale, it'll sure drag a motor down. A few years back we had a late-80's four-wheel-drive green tractor(don't ask me the number- can't or won't keep up with JD's numbering system)...anyway, it was a 120+ HP tractor at least. If the air filter on that thing got a little dirty, hitting the center of those bales would drag the engine down considerable, and the black smoke would roll....'course, blow the air filter out and it'd work fine. Even them green things deserve to be maintained I guess, especially if you're relying on 'em to get the work done!

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Ron in Nebr

11-30-2006 20:19:07




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 Re: IH 766 in reply to Ron in Nebr, 11-30-2006 20:04:30  
Oh yeah, speaking of the green, what we have pulling the bale processor now is a JD 7600(I know the number 'cause I just spent half the day in it). Not sure on HP but it's probably 180 or so.....kinda overkill in my opinion, but I don't buy 'em, just run 'em. It never even flinches running those bales through, but still... Reason I'm looking is that I'm wanting to move to a neighboring place we bought and get my own feeding equipment to have there...and naturally only Red will do for me. Don't want or need overkill, but don't want more than I need either. And DON'T want something so new I have to pay a JD service truck to drive clear out here every time it needs work.

Dad seems to think I HAVE to have a four-wheel-drive, but he seems to forget how we used to feed those 6-ton stacks with an 886 two wheel drive(and the 656 gasser before that...and a 560 before that...and a WD-9 before that, etc etc), back when we used to get REAL snow in the winters. My main reason for shying away from anything older and Red with a 4wd is that from all I've read on here, those old Coleman and Elwood 4wd systems are prone to wear out, especially under a loader carrying two big round bales in the grapple fork, and really pricy to get parts for.

Anyway, I have a few more options to look at, and no big hurry, so I'll just keep my eyes open and go from there. Thanks guys!

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