1970 A.I.R. Pump Bolts - NCRS Discussion Boards

1970 A.I.R. Pump Bolts

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  • Ralph B.
    Expired
    • July 30, 2008
    • 178
    #1

    1970 A.I.R. Pump Bolts

    What is the correct surface finish for the (4) bolts which attach the black cover onto the aluminum body? and the (2) small bolts that attach the aluminum muffler housing onto the same black cover? ---- They look like they may have originally been zinc, but I can't tell for sure due to the age of this original pump?
    Thank you!
    Ralph
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    • Sal C.
      Very Frequent User
      • November 30, 1984
      • 430
      #2
      Re: 1970 A.I.R. Pump Bolts

      Don't know if this is the correct terminology, but the 4 rear housing bolts are silver cad or zinc. The bolts that mount the diverter valve are gray phosphate.
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        • Ralph B.
          Expired
          • July 30, 2008
          • 178
          #3
          Re: 1970 A.I.R. Pump Bolts

          Thank you !!!!!!!
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