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Combines & Harvesters Discussion Forum

IH 715 engine questions

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11-29-2003 15:26:06

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Can anyone tell me the HP and operating RPM of both the C301 and D301 engines? What made these engines more powerful than the tractor engines?

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11-30-2003 15:44:09

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 Re: IH 715 engine questions in reply to Richard, 11-29-2003 15:26:06  
Richard, I have owned (4) different 715's and believe that I have every piece of 715 IH sales lit ever offered.Here are the specs taken from them.

C301 gas rated at 107 hp at 2400 rpm
D301 diesel rated at 95 hp at 2600 rpm
D310 German diesel rated at 95 hp at 2400 rpm

Out in the shed I have a 1978 715 D310 powered with RWA and also have a 1975 gas 715 hydro parts combine with good C301 that will be going in to a 1961 Farmall 460 gas tractor.

Combines are rated at flywheel horsepower where a tractor is rated at pto and drawbar hp.

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Wide Open

11-30-2003 10:04:18

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 Re: IH 715 engine questions in reply to Richard, 11-29-2003 15:26:06  
The reason combines have more power is they crank the RPM's higher in Combines. The 282 ran at 2300 RPM in the 706 which made 72 HP. It ran at 2800 in the 715 which made 97 HP. 500 RPM does alot.

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Duane NC OH

11-30-2003 04:59:05

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 Re: IH 715 engine questions in reply to Richard, 11-29-2003 15:26:06  
we put a 715d engine in our 560d 10 years ago. it is the same block bascially bolted right in. the 282 vs 301 is that the 301 didn't have any sleeves. when we were done it dynoed 75 hp. in the combine i think it was a 90 hp motor.



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11-29-2003 17:03:45

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 Re: IH 715 engine questions in reply to Richard, 11-29-2003 15:26:06  
Dick I can't comment on the 715, never owned one, but on the 915 and the 1466 combines they run the engines at a higher rpm than in the tractors which equates to more HP. I just got a 1466 and they run the DT436 at 2900 RPM at high idle and probably 2750 under load. In a tractor it is 2400 under load. The DT414 in the 915 is about 200 RPM higher than the 1066. More rpm, means quicker wear on the engine. I have heard of cases where they turn the DT466 to 3000rpm in trucks. The HP on a combine would be higher if you measure the tractor HP as DrawbarHP.

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