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Ford Tractors Discussion Forum
Show Parts for Model:

Re: 640 hyds looses prime.... and loosening the plug doesn't

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JMOR

11-23-2013 15:39:13
72.181.173.171



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Sucking air or pump no sucky anymore. Try pressurizing at dipstick or hyd fill plug with compressed air. Be sure transmission level is correct, too.




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William Fissell

11-23-2013 15:47:17
67.187.127.124



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 Re: 640 hyds looses prime.... and loosening the plug doesn't in reply to JMOR, 11-23-2013 15:39:13  
Pump torn down now so hopefully pump no sucky will be better very soon.

Irritated that the hyds pump repair kit doesn't come w manifold seals ;)

Will check tranny level, yes.

how can return line be (apparently) way lower than level in reservoir... or are my eyes just off?



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soundguy

11-23-2013 17:14:57
207.30.46.70



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 Re: 640 hyds looses prime.... and loosening the plug doesn't in reply to William Fissell, 11-23-2013 15:47:17  
return? or pressure line?



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William Fissell

11-23-2013 18:15:49
67.187.127.124



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 Re: 640 hyds looses prime.... and loosening the plug doesn't in reply to soundguy, 11-23-2013 17:14:57  
return a few inches low, with dipstick normaal to high



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soundguy

11-23-2013 18:51:05
207.30.46.70



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 Re: 640 hyds looses prime.... and loosening the plug doesn't in reply to William Fissell, 11-23-2013 18:15:49  
i'm just trying to figure out what you are calling a return line.

I'm assuming the small pressure tube.. not the large suction line.



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William Fissell

11-23-2013 19:37:18
67.187.127.124



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 Re: 640 hyds looses prime.... and loosening the plug doesn't in reply to soundguy, 11-23-2013 18:51:05  
Hah! My bad, chris!

small diameter line: full

large diameter line: low



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soundguy

11-25-2013 05:56:14
184.240.8.9



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 Re: 640 hyds looses prime.... and loosening the plug doesn't in reply to William Fissell, 11-23-2013 19:37:18  
have you checked for free flow from the sump?

soundguy



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William Fissell

11-25-2013 18:03:54
67.187.127.124



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 Re: 640 hyds looses prime.... and loosening the plug doesn't in reply to soundguy, 11-25-2013 05:56:14  
No, how?



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soundguy

11-26-2013 09:36:01
207.30.46.70



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 Re: 640 hyds looses prime.... and loosening the plug doesn't in reply to William Fissell, 11-25-2013 18:03:54  
add air...

if there is a plug inthe suction line.. no pumpy....



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JMOR

11-23-2013 15:54:01
72.181.173.171



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 Re: 640 hyds looses prime.... and loosening the plug doesn't in reply to William Fissell, 11-23-2013 15:47:17  
Quoting Removed, click Modern View to seeDon't know.......seems like the ancient 'water level' to me, except 'oil'.



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sunbeam

11-24-2013 08:02:26
70.195.4.52



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 Re: 640 hyds looses prime.... and loosening the plug doesn't in reply to JMOR, 11-23-2013 15:54:01  
To prime just just get the front lower than the back. As in a roadside ditch.



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Williams Fissell

11-24-2013 17:40:53
67.187.127.124



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 Re: 640 hyds looses prime.... and loosening the plug doesn't in reply to sunbeam, 11-24-2013 08:02:26  
Interesting. Will try.



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William Fissell

11-23-2013 16:35:17
67.187.127.124



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 Re: 640 hyds looses prime.... and loosening the plug doesn't in reply to JMOR, 11-23-2013 15:54:01  
exactly my thouhgt



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