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  1. nefarious

    D31 primer pump

    I changed fuel filter on Komatsu D31 yesterday. When I tried to use the hand primer pump I couldn’t get it to function. I tried to unscrew the knurled top handle but I could not get the stem to release so I could pump out air, it seems that the pump is stuck. Anyone had luck replacing just the...
  2. nefarious

    Komatsu 31 steering

    Hello to all, my first post after reading for a few months, I’ll try to keep this post shorter than a novel. I’ve been following a thread by Don Shilling documenting his clutch rebuild on his Komatsu. While it furnished me with loads of info, my problems were not fixed when my clutch rebuild was...
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