Allis Chalmers 7080

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   Looking at a 7080 and was hoping someone could tell me if the 7080 had rear end troubles. Also how can one tell if the power director shifter is bad without hooking up gauges. I have read don't run them hard about 2200-2300 rpm is all you need no higher. Is that correct. Appreciate any input. 

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acplowboy45 Members Profile Send Private Message Find Members Posts Add to Buddy List Silver Level Joined: 09 May 2013 Location: connersville IN Points: 266	Post Options Post Reply Quote acplowboy45 Report Post Thanks(0) Quote Reply Topic: Allis Chalmers 7080 Posted: 11 hours 54 minutes ago at 8:46pm
	Looking at a 7080 and was hoping someone could tell me if the 7080 had rear end troubles. Also how can one tell if the power director shifter is bad without hooking up gauges. I have read don't run them hard about 2200-2300 rpm is all you need no higher. Is that correct. Appreciate any input.

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DrAllis Members Profile Send Private Message Find Members Posts Add to Buddy List Orange Level Access Joined: 12 Sep 2009 Points: 22840	Post Options Post Reply Quote DrAllis Report Post Thanks(0) Quote Reply Posted: 10 hours 54 minutes ago at 9:46pm
	Not known for rear end problems. I could drive one for 15 minutes without gauges and tell you if the Power Director clutch is good or bad. 2800 RPM is bad. Less is better, correct.

Lynn Marshall Members Profile Send Private Message Find Members Posts Add to Buddy List Orange Level Access Joined: 13 Sep 2009 Location: Dana, Iowa Points: 2491	Post Options Post Reply Quote Lynn Marshall Report Post Thanks(0) Quote Reply Posted: 50 minutes ago at 7:50am
	I certainly wouldn't fear the rear ends or the power director either. The power director had an extra plate in the low side and maybe another one in the high side? The torque limiter would need to be in top shape. The engine was probably the weak link. If left in stock settings and properly serviced, they should last a long time. Turning them up shortened their life. Question for Doc or Injpump Ed, with a stock pump setting, what kind of horsepower would you see at only 2300 rpm. I would think that 2500 or so would be comfortable for the engine and still have somewhat adequate horsepower.