REF: Engine Mechanicals - Sub-07J

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====== REF: Engine Mechanicals - Sub-07J ======
====== Further Study of the 79-E82 Reed Valve ======

===== 1979-E1982 Breather Valve=====

  * Reed Valve Assembly (26909-79).
  * Breather vent fitting thread size at the cam cover is 1/8" NPT. ((IronMick of the XLFORUM https://www.xlforum.net/forum/sportster-motorcycle-forum/sportster-motorcycle-era-specific-and-model-specific/ironhead-sportster-motorcycle-talk-1957-1985/108888-cam-cover-vent-thread-size?t=1003815))
  * Rubber hose connects to the cam cover fitting at the 10 o’clock position and runs to the stock air filter. \\ This way any oil mist that makes it past the reed valve is fed back through the engine.

{{:techtalk:ih:engmech:79_breather_valve_by_tobybott.jpg?direct&350|}} ((photo by tobybott of the XLFORUM https://www.xlforum.net/forum/sportster-motorcycle-forum/sportster-motorcycle-era-specific-and-model-specific/ironhead-sportster-motorcycle-talk-1957-1985/42665-79-ironhead-breather-check-valve?highlight=breather#post877147)) {{:techtalk:ih:engmech:reed_valve_by_lodkolv.jpg?direct&300|}} ((photo by lodkolv of the XLFORUM https://www.xlforum.net/forum/sportster-motorcycle-forum/sportster-motorcycle-era-specific-and-model-specific/ironhead-sportster-motorcycle-talk-1957-1985/42665-79-ironhead-breather-check-valve/page2?t=113861&highlight=breather&page=2)) \\


{{:techtalk:ref:engmech:79-e82_reed_valve_operation.png?direct&600|}} ((drawing by Hippysmack)) \\

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Trace: • EVO: Engine Mechanicals - Sub-01K • W • REF: Engine Mechanicals - Sub-04J • REF: HD List of Evo Sportster Hardware P/N & Descriptions • REF: Service Procedures 9A • REF: Extra Models10 • REF: Engine Mechanicals - Sub-07G • REF: Engine Mechanicals - Sub-07N