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560 vs. 706 horsepower

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J.D.

02-12-2002 05:19:49




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What did IH do differently on the 263 in the 706 if they are rated at 72 HP and the same engine in the 560 is rated at 59 HP? Or is the 72 HP rating for the later 706's that had the 291 engine? I am rebuilding a 263 and looking to get some more power. What is the best way to get it?




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Greg Lussetto

02-12-2002 17:55:47




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 Re: 560 vs. 706 horsepower in reply to J.D., 02-12-2002 05:19:49  
The combustion chamber in the cylinder head and the design of the piston was changed after the 560. It is much more effecient.

If you are looking for more power, it is very simple to remove the sleeves and bore the block to a STD C301 bore. These pistons are still available from IH and are fairly reasonable. Only drawback is that it will use a lot of gas.



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Ace Schrunk

02-12-2002 10:40:28




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 Re: 560 vs. 706 horsepower in reply to J.D., 02-12-2002 05:19:49  
560D and first 706D same engine we use to run the 560D about 2200 and get 72 73 horse, 560G 706G same engine but 706G had bigger manifold we could get 66 67 horse out of 560 with 706 manifold. RPM was the big difference in the first 706 D or G



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Matthew

02-12-2002 08:47:45




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 Re: 560 vs. 706 horsepower in reply to J.D., 02-12-2002 05:19:49  
560G have 64 hp. The diesel has 59. If you want more power, I suggest a bigger tractor. Can't go wrong with a 806, them things run forever!!



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Magnum

02-12-2002 21:36:55




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 Re: Re: 560 vs. 706 horsepower in reply to Matthew, 02-12-2002 08:47:45  
Except for the TA and at the same time that dry foot clutch every couple thousand hours. Not to mention that rediculous shifting mechanism. Oh and the hydraulic pumps go bad often enough and then the clutch shaft splines are usually shot. And forgot that little tiny pin the size of a pencil lead in the PTO breaks and the parking break is junk. Probably forgetting some things.



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RPM

02-14-2002 12:55:20




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 Re: Re: Re: 560 vs. 706 horsepower in reply to Magnum , 02-12-2002 21:36:55  
Yep all true, they were not made for dinking around, you bought it to go to the field, put it in gear and work it for years on end.



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Matthew

02-13-2002 16:00:42




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 Re: Re: Re: 560 vs. 706 horsepower in reply to Magnum , 02-12-2002 21:36:55  
I'd like to see a magnum 35 years from now!! There will never be another tractor that will ever run that many hours on one overhaul!!



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Magnum

02-13-2002 17:31:21




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 Re: Re: Re: Re: 560 vs. 706 horsepower in reply to Matthew, 02-13-2002 16:00:42  
Couldn't prove it by me. Been a mechanic for almost 30 years and when the magnum came out our shop business took a nose dive big time. Proof is in the pudding. You better eat your pudding.



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ihdoug

02-14-2002 11:28:52




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 Re: Re: Re: Re: Re: 560 vs. 706 horsepower in reply to Magnum, 02-13-2002 17:31:21  
Guys, you're brothers in the IH family, cant you get along?



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Matthew

02-14-2002 10:14:12




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 Re: Re: Re: Re: Re: 560 vs. 706 horsepower in reply to Magnum, 02-13-2002 17:31:21  
Business dropped of because there is no fix to modern equipment. Farmers buy new or rent. By the way how many hours do Magnums have on them, they haven't been out very long. I'm not the only person who has great things to say about 806's. You are one of the first I've seen that hasn't got anything good to say about them. All the things you've previosly mentioned will eventually wear on any tractor. Except the pto pin they were weak!!

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Magnum

02-14-2002 18:00:10




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 Re: Re: Re: Re: Re: Re: 560 vs. 706 horsepower in reply to Matthew, 02-14-2002 10:14:12  
Name another tractor that has the TA problem that IH had. I seen several with 10,000 or more with only minor probems in their life so far. I worked on those beasts for years and the Magnum was IH's cure to most of their tractor troubles. I am not talking about the MX Magnums cause so far they have had their share of troubles.



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Grand Leveler

02-12-2002 11:40:27




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 Re: Re: 560 vs. 706 horsepower in reply to Matthew, 02-12-2002 08:47:45  
I have to agree, 806 is one fine machine.



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Matthew

02-13-2002 15:56:14




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 Re: Re: Re: 560 vs. 706 horsepower in reply to Grand Leveler, 02-12-2002 11:40:27  
You betcha!!!



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maxall

02-12-2002 08:14:12




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 Re: 560 vs. 706 horsepower in reply to J.D., 02-12-2002 05:19:49  
I had a 560 263 i bored it to 291. Didn't notice much more power. Then I found out the 706 and 806's used bigger carb. and manifold, also bigger values. I found a 706 head complete with manifold and carb. Then it dyno'ed at 78 hp. Good luck maxall



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Cliff Neubauer

02-12-2002 07:07:12




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 Re: 560 vs. 706 horsepower in reply to J.D., 02-12-2002 05:19:49  
The 263 can be bored out to accept 291 sleeves and pistons, our 706 Lp has had this done and it used to run over 80 hp. I think you can also bore the 263 to a 301 by running it sleeveless.



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Denny Frisk

02-12-2002 06:33:05




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 Re: 560 vs. 706 horsepower in reply to J.D., 02-12-2002 05:19:49  
I think most of the HP diff. comes from the engine RPM... the 560 ran 1800 I believe and the 706 ran 2100 or 2200, almost as fast as the 660... running at 2400. May be other differences in the engines as well.



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Steve Wheeler

02-12-2002 09:22:15




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 Re: Re: 560 vs. 706 horsepower in reply to Denny Frisk, 02-12-2002 06:33:05  
There are a couple of things that IH did differently.
i) displacement (I believe)
ii) the 560 (diesel) had indirect injection. the injector sprayed the fuel into a pre-cup (similar to the MD). Apparently the 560 needed the glow plugs to start whether it was hot or cold. the 706 went to direct injection which would help in the hp increase.



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Jim

02-12-2002 10:53:41




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 Re: Re: Re: 560 vs. 706 horsepower in reply to Steve Wheeler, 02-12-2002 09:22:15  
The early model 706 diesel have the same 282 as the 560 with the rpm turned up from 1800 to 2300. At serial 37236 IH went from the D282 (560 engine) to the D310 German diesel. At the same time IH changed gas engines from the C263 engine to the C291



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Denny Frisk

02-12-2002 10:46:31




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 Re: Re: Re: 560 vs. 706 horsepower in reply to Steve Wheeler, 02-12-2002 09:22:15  
The 263 cid was a gas engine in the 560 & 706. Later, can't remember the ser. #., the 706 went to 291 cid. The changes you mention are probably true of the diesels.



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Steve Wheeler

02-12-2002 09:20:56




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 Re: Re: 560 vs. 706 horsepower in reply to Denny Frisk, 02-12-2002 06:33:05  
There are a couple of things that IH did differently.
i) displacement (I believe)
ii) the 560 (diesel) had indirect injection. the injector sprayed the fuel into a pre-cup (similar to the MD). Apparently the 560 needed the glow plugs to start whether it was hot or cold. the 706 went to direct injection.



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Hugh MacKay

02-12-2002 15:00:08




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 Re: Re: Re: 560 vs. 706 horsepower in reply to Steve Wheeler, 02-12-2002 09:20:56  
Steve Wheeler; Just curious, did you ever live in Nova Scotia, Canada.



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Steve Wheeler

03-04-2002 09:29:39




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 Re: Re: Re: Re: 560 vs. 706 horsepower in reply to Hugh MacKay, 02-12-2002 15:00:08  
I am afraid not, I have put all my 29 years in southwestern ontario.



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