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Big Steve

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Posts posted by Big Steve

  1. Your 7120 will run the planterjust fine if you set your flow control properly. Put a pressure gauge in the motor supply line  you have to keep the pressure under 2000 psi or you will lock the flow out of the pump where you have it set at . I have set a lot  of  Deere planters on Magum tractors when I  worked at the dealership send me a PM if you more information. 

  2. If  memory serves me right the first and maybe the  second  407 blocks didn't have  enough water jacket  on the right side to cool a turbocharged  tractor it would  crack the sleeve. This happened on the 1256  you can tell the early blocks on the right side it followed the curve of the  sleeve. The later blocks were smooth on the right side and I thought they used those blocks up on the 856.

  3. Reverse is half the speed of forward . The springs on the hydro are getting weak  the load can overpower the spring and return the shach plate back to neutral .The hydro linkage should be rebuilt  but  you can put a 1/4bolt n the reverse slot so you can over ride the load with the hydro  lever.

  4. There is a friction  disc  behind the throttle  lever. Take the hood off behind lever and you can get to it . There is also a counter  spring under the gas tank rear of the starter that may be gone   this spring keeps the pull pressure the same thru the full range of the lever.

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