oil line routing 1991 sportster

Discussion in 'Sportster Models' started by 0159robinson1, Jul 28, 2011.

  1. 0159robinson1

    0159robinson1 New Member

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    hi people,need help. i recently aquired an engine for my bobber project but the oil lines are not marked. one line just in front of rear engine mount,another line in front of the drive sprocket behind the cam cover,two lines going into the oil pump can anyone tell me what is the main feed and what is the return.and which is the breather.
     
  2. fin_676

    fin_676 Experienced Member Staff Member Moderator Contributor

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    The vent line is the one near the sprocket the main feed and return are the 2 lines going to the oil pump and as i remember but could be wrong here that the feed is slightly larger diameter

    Brian
     
  3. 0159robinson1

    0159robinson1 New Member

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    Hi Brian thanks for the reply, the line in mentioned just in front of the rear engine mount ia a larger diameter than the others any idea what it is
     
  4. fin_676

    fin_676 Experienced Member Staff Member Moderator Contributor

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    Wild guess that it is a vent for the gearbox it is too dark to go out to shed to start pulling sporty to bits to work it out

    Brian

    update breather tube is the part name so wild guess may be close
     
  5. 09RG/92spster

    09RG/92spster Member

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    I have attached a page showing the oil routing.
     

    Attached Files:

  6. 0159robinson1

    0159robinson1 New Member

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    Thanks for the diagram just what i was looking for.