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Allis Chalmers 7030 7040 Differences
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btred1466 View Drop Down
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Joined: 12 Jul 2012
Location: Magnolia, OHIO
Points: 206 		Post Options Post Options   Thanks (0) Thanks(0)   Quote btred1466 Quote  Post ReplyReply Direct Link To This Post Topic: Allis Chalmers 7030 7040 Differences
    Posted: 31 Jul 2020 at 7:58pm
What were the differences between the Allis Chalmers 7030 and 7040's? 7040's had a Power Shift Transmission option and 5 or 6 more Horsepower and Longer Axles. 

What are the other differences other than the Model numbers?
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DrAllis View Drop Down
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Joined: 12 Sep 2009
Points: 22825 		Post Options Post Options   Thanks (0) Thanks(0)   Quote DrAllis Quote  Post ReplyReply Direct Link To This Post Posted: 31 Jul 2020 at 8:10pm
Power Shift wasn't available until very late 1975, which was a year after the intro of the 7040.  Hydraulic outlets were moved to a better location. Power Director transmission actually had 19 speed choices out of 20 selections instead of 15 or so on the 7030.  Engine had piston cooling jets, 7030 did not. Rear axle diameter sizes were 3 3/4" instead of 3 5/8". Long axles were available on the 7030, just not many were sold.  Warning flashers eventually got moved down off of the rooftop. That's all I can remember.

Edited by DrAllis - 31 Jul 2020 at 8:27pm
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injpumpEd View Drop Down
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Joined: 13 Sep 2009
Location: Walnut IL
Points: 5204 		Post Options Post Options   Thanks (0) Thanks(0)   Quote injpumpEd Quote  Post ReplyReply Direct Link To This Post Posted: 01 Aug 2020 at 9:43am
Improved injection pump with more internal timing advance, to allow it to be timed from 24* to 18* for easier starting. 
210 "too hot to farm" puller, part of the "insane pumpkin posse". Owner of Guenther Heritage Diesel, specializing in fuel injection systems on heritage era tractors. stock rebuilds to all out pullers!
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