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Harry Ferguson Tractors Discussion Forum
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Hydraulic pump TO20

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JohnNicholas

04-23-2005 16:41:42




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Hi, I had to drop the hydraulic pump. Both pistons had shattered. The problem is that original owner rebuilt the pump and used only 1 camblock(the brass sleve that fits inside of the piston). I know that I need to use 2 cam blocks BUT all the pictures that I see only show 1 cam block and 1 piston. The information that I need is on the cam block there is a flange that faces the rear of the tractor. Do both camblocks face that way or what?
Thx for any help

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John(UK)

04-24-2005 08:13:50




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 Re: Hydraulic pump TO20 in reply to JohnNicholas, 04-23-2005 16:41:42  
The TWO cam blocks fit with the flanges next to each other (back to back)so they would rub on each other if you like. If the pistons shattered that usually suggests too much pressure, maybe high engine revs with the relief valve blowing so it builds up a back-pressure.



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