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Allis Chalmers Discussion Forum

AC 7000 repower

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Author  [Modern View]

12-14-2010 19:10:04

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Are there any kits available to slip a Cummins 5.9 into a 7000? Agrepower has them for the 6000's and 7010 to 8070 but not the 7000, I guess because they were basically an improved 190 / 200.

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12-17-2010 10:28:10

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 Re: AC 7000 repower in reply to ACJ, 12-14-2010 19:10:04  
I looked into this also when my 301 blew a copper injector sleeve o ring (originally thought it was the head gasket). From what others told me, I would be on my own with this one as far as some of the adapter parts. The 7010+ series adapters won"t work (both plates are different and no provision for a hydraulic pump on the front plate) and the 6000 series had a different rear end, so I don"t think it will be the same as the 7000"s rear end. I ended up rebuilding my 301 with high compression pistons and getting the head completely redone while I had it in the shop to replace a leaky copper sleeve. It was a little over 2500 dollars (almost 800 of that was in the head and another 150 went to honing the connecting rod bushings) and that was with a crank that still was in spec (no regrinding, just had an old mechanic help me polish it with some fine emery cloth). Long story short, rebuilding the 301 will be a lot less trouble than trying to cobble up a conversion. The 301"s a great motor and can easily last 10,000 hours with modern lubricants and fuels with proper maintenance. I also added a 2 micron bypass oil filter set up onto my tractor to extend the oil changes out to 250-300 hours from the original 100 hours, so it has already paid for itself and the used oil analysis from the last oil change with over 250 hours on it came back perfect. Also, there are some problems with electrolysis on the 301 that need to be addressed, mainly with a coolant filter or additives.


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12-15-2010 10:13:31

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 Re: AC 7000 repower in reply to ACJ, 12-14-2010 19:10:04  
google "Cummins repower", or call Steve Mallicoat at Cummins- IA- 319-366-7537.

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