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Massey Harris & Massey Ferguson Tractors Discussion Forum
Show Parts for Model:

Re: MF 175 Power Steering Pump Removal

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jogl

02-04-2013 14:04:55
64.66.229.172



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Oops, 236 diesel.

There were two screws, 3/8 x 2 course threads, that could be accessed from the front of the engine with the timing gear cover still on. They definitely were holding the pump, I could see the threaded ends turning out on the pump side.

The third screw was short, 3/8 x 1 1/4 fine threads, I'm not entirely sure what it was for.

She seems to be on real solid, I tapped, firmly but gently and nothing moved or opened at all.

JP.

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Masseynut(Australia)

02-05-2013 02:30:29
58.165.121.173



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 Re: MF 175 Power Steering Pump Removal in reply to jogl, 02-04-2013 14:04:55  
From your description, I believe you have removed the three retaining bolts to remove the pump. But take a second look before you "get serious" about removing it. The lower of the mounting bolts is the tricky one. You may have inadvertently removed one of the timing cover retaining bolts by mistake.
Later aftermarket replacement pumps only utilise two bolts to retain it. If the rear housing has cracked, and leaking oil, it may possibly be that the relief valve has jammed, and over-pressurised the pump at some stage. The relief valve is located on the rear section. I'm only familiar with the English versions of the 175's, and these were solely "power assisted" steering, not full hydro-static systems. The U.S. versions may be either.Replacement pumps for either come with the valve factory set, so source a replacement pump and away you go. Cost effectively, it won't be an option to rebuild your old pump. Evan.

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