Here's a picture with the solenoid actuated valve or piston back in. You can just about see it in the top port
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Here I have the floor switched on and the potentiometer turned all the way up to extend the piston
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I have the relief valve in here and you can see the top of it in through the top port
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This is aluminium block that the solenoid bit is bolted to. The middle hole is the oil feed from the tractor, the bottom one goes to the motor and the top one is the return from that piston that's supposed to slow the motor.
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This is the 2 valves end on. All I can think of is should there be something between them both that as the top piston moves down it presses open the relief valve?.
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