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agco allis 6690


 
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Matthew McKinney
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PostPosted: Tue Apr 23, 2013 6:39 pm    Post subject: agco allis 6690 Reply to specific post Reply with quote

I looked at a agco allis 6690 one of these at a local dealer and the salesmen told me it was air cooled is that a bad thing with a 87 hp tractor like that or not have people had good luck being air cooled or not.
 
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Wisconsin Cowman
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PostPosted: Tue Apr 23, 2013 8:03 pm    Post subject: Re: agco allis 6690 Reply to specific post Reply with quote

Nothing wrong with it being air cooled. There are higher hp air cooled engines. Main thing is to keep the cooling fins and engine clean.
 
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Ryan Renko
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PostPosted: Wed Apr 24, 2013 5:06 pm    Post subject: Re: agco allis 6690 Reply to specific post Reply with quote

We have a 6690 we bought new. We take very good care of our equipment and have had no trouble with the air cooled motor. As Cowman stated, use air to blow off the oil cooler and engine heat fins and you are good to go!! Also these engines use oil as a coolant so make sure you keep it maintained. I can mow our pasture in August when its in the upper 90s and she runs cool as can be. Gleaner combines of that era used the air cooled motors also. Some owners loved them for their fuel economy and reliability and other owners cursed them. Most unhappy owners were the ones with the poor maintenance.
 
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jim_uny
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PostPosted: Thu Apr 25, 2013 7:37 am    Post subject: Re: agco allis 6690 Reply to specific post Reply with quote

i have deutz air cooled but believe 6690 made by same. if it is chore tractor make sure it starts easily with aid of air intake manifold heater or glow plug. i have to use hair dryer and battery boost when below 10 degrees but can also get it to start but is time consuming.
 
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