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1957 JD 620 Restoration


 
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JWMartin
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Joined: 22 Mar 2020
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PostPosted: Sun Mar 22, 2020 6:31 pm    Post subject: 1957 JD 620 Restoration Reply to specific post Reply with quote

Rebuilding my great grandfather s JD 620, it was in pieces so going with what I think goes where. But I am stuck as to where the bypass tube coming from the water pump goes. I know it comes out of the water pump and runs along the frame but I cannot seem to find anything that tells me where the other end hooks to.

Thanks for any info anyone can give me!
 
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PJH
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PostPosted: Sun Mar 22, 2020 6:37 pm    Post subject: Re: 1957 JD 620 Restoration Reply to specific post Reply with quote

The bypass tube runs from the water pump to the thermostat cover, near the top of the radiator.
 
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JWMartin
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PostPosted: Mon Mar 23, 2020 4:12 pm    Post subject: Re: 1957 JD 620 Restoration Reply to specific post Reply with quote

CVPost-PJH wrote:
(quoted from post at 19:37:58 03/22/20) The bypass tube runs from the water pump to the thermostat cover, near the top of the radiator.






Great! Thank you I ll look a little closer when I get a little further along.
 
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buickanddeere
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PostPosted: Tue Mar 24, 2020 5:45 pm    Post subject: Re: 1957 JD 620 Restoration Reply to specific post Reply with quote


Use a 195-210F thermostat from Napa . Same stat and 1/3 the price from Deere .
Do not operate without a stat .
 
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Mike M
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PostPosted: Thu Mar 26, 2020 4:49 am    Post subject: Re: 1957 JD 620 Restoration Reply to specific post Reply with quote

Get a copy of the JD parts manual. Invaluable to have for such things. I would not want to tackle such a job as that without mine at hand.
 
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