L76 340HP Idler nut and washer finish. - NCRS Discussion Boards

L76 340HP Idler nut and washer finish.

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  • Richard G.
    Extremely Frequent Poster
    • July 31, 1984
    • 1715

    L76 340HP Idler nut and washer finish.

    I just replaced my water pump on my 63.
    When I installed the Idler Pulley Assembly the nut, lock-washer and flat washer didn't look correct so I changed them out to black oxide from Zinc. I have no idea which is correct as it isn't mentioned in the JM. The JM did identify the long hex stud finish as black oxide or black phosphate.

    Below are the part numbers out of the assemble manual.
    120377 Nut
    446212 P washer
    120382 L washer



    Can anyone identify the correct finish for me?
    Thanks
    Rick
    Attached Files
  • Joe L.
    Beyond Control Poster
    • February 1, 1988
    • 43193

    #2
    Re: L76 340HP Idler nut and washer finish.

    Originally posted by Richard Geier (7745)
    I just replaced my water pump on my 63.
    When I installed the Idler Pulley Assembly the nut, lock-washer and flat washer didn't look correct so I changed them out to black oxide from Zinc. I have no idea which is correct as it isn't mentioned in the JM. The JM did identify the long hex stud finish as black oxide or black phosphate.

    Below are the part numbers out of the assemble manual.
    120377 Nut
    446212 P washer
    120382 L washer



    Can anyone identify the correct finish for me?
    Thanks
    Rick
    Rick------


    120377 Nut---------zinc
    446212 P washer----zinc
    120382 L washer-----zinc
    In Appreciation of John Hinckley

    Comment

    • Richard G.
      Extremely Frequent Poster
      • July 31, 1984
      • 1715

      #3
      Re: L76 340HP Idler nut and washer finish.

      Thanks Joe!
      I will return it to the way I had it.
      I am going to make a note in my AM also.
      Rick

      Comment

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