Neck bearing races

Collapse
X
 
  • Time
  • Show
Clear All
new posts
  • white1j0
    New Member
    • Feb 2012
    • 18

    #1

    Neck bearing races

    I installed a set of after-market bearings and races on a '56 Pan that i'm building, the bolt hole distance between the upper and lower trees for the upper tins are about 3/16" too wide, could anyone tell me the length between the top and bottom bearing when installed, any help would be greatly appreciated, Thanks Whitey
  • TimR
    Member
    • Sep 2009
    • 74

    #2
    Whitey, Did you replace the neck cups with after-market cups or did you install new bearing races in your original neck cups. If you replaced the neck cups with after-market ones measure old ones and new ones and compare. Perhaps the new after-market ones were machined to sit slightly taller out of the neck. If each after-market one is 3/32" taller you would gain 3/16" between bolt holes.

    Comment

    • Chris Haynes
      Curmudgeon
      • Jul 2002
      • 5939

      #3
      Be sure to visit;
      http://www.vintageamericanmotorcycles.com/main.php
      Be sure to register at the site so you can see large images.
      Also be sure to visit http://www.caimag.com/forum/

      Comment

      • white1j0
        New Member
        • Feb 2012
        • 18

        #4
        Thanks for the info. I installed new timken bearings and cups, apparently according to Chris's pics., I have later model cups, I didn't have the old cups, the frame was pretty hacked up, the original neck was cut and had about 5 lbs. plate welded on and stretched out over 20 degrees, I guess now the only option I have is to knock out and replace the cups unless someone might have a quicker fix. Thanks Whitey

        Comment

        • Rooster
          Senior Member
          • Mar 2009
          • 543

          #5
          Sorry, there's no 'quick fix' other than to replace your bearing cups with the early cups.
          And if you have them, it's actually a pretty quick fix...

          Comment

          • Panacea
            Member
            • Dec 2011
            • 36

            #6
            if you can't find any 49-59 cups, call mark Blankenship(304) 697-1445 after 3pm eastern time. He is re-producing them...

            Comment

            • white1j0
              New Member
              • Feb 2012
              • 18

              #7
              001.jpgThanks for the help, I probably will have to make the call,it seems that no one repops the early cups, but I have a question on the length of the neck, does anyone know the exsact length, I'm posting a pic. so you can see where I'm coming from Thanks Whitey

              Comment

              Working...