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I am checking my Timing gears. I can't seem to find the Crank Pin location on the block, I have the Pin and the Timing tools. It's not the same as my 871. Anyone Know?

My 871 is at the Drain for the Crank Case Ventilation tube.

It's in the exact same location, it may just be a plug with a 6mm allen key head. It's right under a small cutout in the fuel pump/air compressor support bracket.