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Wdtractorman 
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Joined: 24 Sep 2013
Location: Kentucky
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 Topic: Off color David Bradley
Posted: 04 May 2014 at 8:47pm |
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Iv got an old David Bradley walk behind that I'm tired if fighting with the old B/s engine. I thinking of repowering it with harbor freight engine. So this is two part question how good are the harbor freight engines one , and two dose anyone know what the wright size pulley for one of those I think mine a four inch and if i don't just idle the engine you have to run with it. Thanks
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bigcountry48
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Joined: 28 Aug 2011
Location: Georgia
Points: 1100
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Posted: 04 May 2014 at 8:53pm |
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I used a harbor freight engine on my last David Bradley and I would definitely recommend it. It won't look original and won't work with a hood if you have one, but its reliable and easy to stop. I had a 2 inch pulley on mine and it was a decent pace, not too slow not too fast. The 6 hp is all you need and it has a 1 inch spindle for the pulley. Hope this helps!
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1950 B, 1952 pulling wd, and 1954 wd45
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Wdtractorman
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Joined: 24 Sep 2013
Location: Kentucky
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Posted: 04 May 2014 at 9:19pm |
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Thanks mine don't have a hood so that no problem. I kinda peaces mine togather
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HudCo
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Joined: 29 Jan 2013
Location: Plymouth Utah
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Posted: 09 May 2014 at 4:53pm |
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would you put a chinese engine in your allis
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steelwheelAcjim
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Joined: 06 Dec 2009
Location: Blissfield,Mi
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Posted: 09 May 2014 at 6:16pm |
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What is the problem with the engine you have? What is the model # of the tractor? Should be an I.D plate on the side of the transmission gearbox.
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Pre-WW2 A-C tractors on steel wheels...because I'm too cheap to buy tires!
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Wdtractorman
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Location: Kentucky
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Posted: 09 May 2014 at 8:06pm |
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It the second searis they made but it doesn't have the original engine anyway. Like I said I peaced it togather out of stuff I just found around. It has a briges 5 hp it will run good then flood and then start missing and you'll have to pull the choke to keep it running. Iv done all I know to do iv sanded the flywheel reset the gap on the coil new plug cleaned the gas tank and carb. Replaced the rubber diaphragm in the carb and air filter. I'm just tired of working on it spending money on it and having the same problem
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Wdtractorman
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Location: Kentucky
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Posted: 09 May 2014 at 8:39pm |
s1166.photobucket.com/user/wdtractorman1984/media/Mobile%20Uploads/image_zpsb97764ea.jpg.html]  [/URL] http://s1166.photobucket.com/user/wdtractorman1984/media/Mobile%20Uploads/image_zpsdf0ab244.jpg.html]  [/URL]
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steelwheelAcjim
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Posted: 09 May 2014 at 8:58pm |
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Check the gasket between the carb and the block. I've had them suck air in on water pumps with these engines. Makes it run crappy.
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Pre-WW2 A-C tractors on steel wheels...because I'm too cheap to buy tires!
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dawntreader74
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Joined: 28 Oct 2013
Location: Manteno
Points: 1770
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Posted: 11 May 2014 at 11:55am |
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these tractors had a 1-1\2 bs motor on them. you dont need that big motor you cant hold it back with the little one. an thay sure plow nice'
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Wdtractorman
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Posted: 11 May 2014 at 8:19pm |
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I think I'm going to try the gasket between carb and engine block on the ol gal. And I'd like to have plow cultivators and few things for it all iv got is a disc and home made trailer. Wouldn't have the disc but found it at the scrap yard in crush pile
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HudCo
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Location: Plymouth Utah
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Posted: 12 May 2014 at 9:36am |
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sererate the carb and tank it has two pick up tubes and a jet in there and they probley pluged it is always easy to check the valve lash while the carb and tank is off
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ac fleet
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Posted: 13 May 2014 at 5:52pm |
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I ended up with a new B & S 6.5 on mine,---used a 2" pulley, runs too fast but cant figure how to slow it down,--and yes the original engine was a 1-1/2 hp, either a pancake or vertical style engine! thanks; ac fleet
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dawntreader74
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Posted: 14 May 2014 at 12:07pm |
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the smaller pulley you put on the motor the slower it will go. around a 1-1\2 pulley was on them with place for two belts
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