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  • Buzz Coils Rx
  • Battery/Distributor RX
  • Magneto Rx:
  • Plug, Wire, Condenser RX
  • Testing 101
  • Magneto and Vintage Tech Store

    • Shop by Brand

  • American Bosch
  • Fairbanks Morse
  • Wico
  • Helicoil and compatibles
  • Snapon
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  • Edison Splitdorf
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    • ZR4 For Ingersoll Rand Compressor

    Here is a factory manual that came with your "new" Ingersoll Rand Air Compressor of the late 1920's-1930's with some special features.

    am-bosch-zr4-ingersoll-rand-air-compressor-1skinny.png

    am-bosch-zr4-ingersoll-rand-air-compressor-2skinny.png

    Set the plug gap to .025 and all will be well. Always use non resistor plugs and wires.

    am-bosch-zr4-ingersoll-rand-air-compressor-3skinny.png

    am-bosch-zr4-ingersoll-rand-air-compressor-4skinny.png

    am-bosch-zr4-ingersoll-rand-air-compressor-5skinny.png

    am-bosch-zr4-ingersoll-rand-air-compressor-6skinny.png

    am-bosch-zr4-ingersoll-rand-air-compressor-7skinny.png

    am-bosch-zr4-ingersoll-rand-air-compressor-8skinny.png

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