primary 0n 1983 flh

Collapse
X
 
  • Time
  • Show
Clear All
new posts
  • sailfish
    Senior Member
    • Sep 2010
    • 175

    #1

    primary 0n 1983 flh

    on my 83 the person before me pluged off the chain oil lines to the primary i have it apart should i reconnect them to the oil pump or should i just leave them pluged off? does it matter if thier pluged off ? thanks
  • vph-d
    Senior Member
    • Jun 2005
    • 1074

    #2
    If the lines are plugged off, the primary case must be running it's own chain oil. A somewhat common modification for Shovels that keeps clutch debris out of the engine oil. I never bothered with the mod, but my brother changed both of his Shovels. He reads a lot of bike magazines.

    VPH-D

    Comment

    • duffeycycles
      Senior Member
      • Apr 2010
      • 2007

      #3
      That mod brings the design closer to modern HDs.The original setup allowed chain debrie to get into the return to tank pump gears ,shearing the key and then the crankcase fills up with oil and overpressures [Kerblewey] .Use only a small amount of oil in this setup if running the original dry clutch.The original system only had about 1/4 cup[enough to oil chain only]--above that level it sucked it back into the motor to return to tank.I do this mod to all but original paint bikes.

      Comment

      • kg993
        Senior Member
        • Jul 2010
        • 263

        #4
        Originally posted by duffeycycles View Post
        That mod brings the design closer to modern HDs.The original setup allowed chain debrie to get into the return to tank pump gears ,shearing the key and then the crankcase fills up with oil and overpressures [Kerblewey] .Use only a small amount of oil in this setup if running the original dry clutch.The original system only had about 1/4 cup[enough to oil chain only]--above that level it sucked it back into the motor to return to tank.I do this mod to all but original paint bikes.
        Don't forget to vent the chain case. I use the origional drip fitting as a vent and run a hose upwards (to keep oil from being pushed out) and then pointed down to help keep out moisture.
        Kerry AMCA # 15911

        Comment

        • sailfish
          Senior Member
          • Sep 2010
          • 175

          #5
          thanks for all the great hints my 83 is all origional can i shortin the lines a little they are about 8 inchs long?

          Comment

          Working...