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western iowa | +1 on what he ^ said. I'm no expert either but owned a 67 4020 for a long time. Like he said, it has a dry clutch with just a mechanical linkage to the pedal. Make sure there is free travel in the pedal by adjusting it. There is a bearing to be greased up inside the clutch housing by removing the inspection plate underneath. If the gears were grinding first, it wasn't releasing. And I wonder if the plug you were taking out was the suction screen one? There is no spring under it. The correct plug is towards the rear of the tractor on the left side behind the hydraulic filter. It is flat, about 2" across and takes a 1/2" square male drive to remove it. The screen under it is probably 6" long and can be struck in there a bit if it has a lot of "stuff" on it. Good luck! If you don't have one, get an owners manual. | |
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John Deere 4020 Clutch Troubles
