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520 cooling system


 
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J W Ferguson
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Joined: 07 Dec 2012
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PostPosted: Fri Dec 07, 2012 1:45 pm    Post subject: 520 cooling system Reply to specific post Reply with quote

I am rebuilding an old 520 and I have had a cooling problem in the past. I have noticed the radiator core sits 1-1/2 inches away from the fan at the nearest point. I have replaced the core in the past and it will only fit one way in the housing. I am suspecting the plates on the top and bottom of the core may be located wrong from the manufacturer. If the top and bottom plates had been flipped over at assembly, I could gain and inch, closer to the fan. If anyone knows what the normal clearance is from the fan to the core, I would appreciate hearing.
 
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Bob Harvey
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Joined: 18 Jan 2003
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PostPosted: Fri Dec 07, 2012 2:22 pm    Post subject: Re: 520 cooling system Reply to specific post Reply with quote

Second guessing JD on a tractor that age is probably fruitless, even silly. They had some pretty smart/experienced engineers while designing these machines. I suspect that the space from rad core to fan has something to do with air flow, changing it may be a serious mistake. HTH
 
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Machinery-Man
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Joined: 21 Jan 2006
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PostPosted: Fri Dec 07, 2012 3:04 pm    Post subject: Re: 520 cooling system Reply to specific post Reply with quote

why don't you locate another machine in area and check the specs before changing anything around.
 
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deeretails
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Joined: 02 Mar 2011
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Location: Southeast PA

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PostPosted: Fri Dec 07, 2012 4:34 pm    Post subject: Re: 520 cooling system Reply to specific post Reply with quote

If the fan shroud is in place I don't think the fan to radiator distance is critical.
 
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