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Allis Chalmers Discussion Forum
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7580

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Todd Hoskins

12-07-2010 16:04:58




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My 7580 has a weak engine. Is it cheaper to rebuild, or repower with Cummins,dt466,or etc.




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DougBoerger

12-11-2010 06:59:31




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 Re: 7580 in reply to Todd Hoskins, 12-07-2010 16:04:58  
i have a good 7580 engine for sale asking 3,800



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856 puller

12-07-2010 17:12:40




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 Re: 7580 in reply to Todd Hoskins, 12-07-2010 16:04:58  
it depends what you mean by weak. low power, hard starting. using oil? it may not need rebuilding only a good tuning. if the block and crank are good its probably cheaper to fix but that 426 was not a good engine for that type of tractor. for me it would be hard to spend big money on that tractor unless you will keep it long term



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JMS/.MN

12-07-2010 17:04:02




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 Re: 7580 in reply to Todd Hoskins, 12-07-2010 16:04:58  
You can"t do any better than a Cummins. Repowered my Case 2470 years ago with the 855 Cummins. Took a special adapter plate and many other mods, but well worth it. Cannot beat the lugging power of the Cummins.



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NY 986

12-07-2010 16:37:13




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 Re: 7580 in reply to Todd Hoskins, 12-07-2010 16:04:58  
I would look at a Cummins re-power. I worked for a parts company years ago and they gave up warranting 426 short blocks and crankshafts that went into the 7580.



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greg1

03-21-2011 21:58:03




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 Re: 7580 in reply to NY 986, 12-07-2010 16:37:13  
rebuild a 7580 7 years ago and it is a good tractor so long as you keep the rpms below 2700 when pulling they don,t like rpm over that



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