Burnishing the oil pump drive bushing?

Engine, Trans & Driveline

  1. 493 Mike

    493 Mike FBBO Gold Member FBBO Gold Member

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    Hi fellas,
    The previous post got me thinking about the factory tool for burnishing. Does anyone have one? Or can anyone tell me the diameter of the ball section? It looks like a lathe project for me!
    Mike
     
  2. Stanton

    Stanton Well-Known Member

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    Dist bushing burnisher.JPG
     
  3. wyrmrider

    wyrmrider Well-Known Member

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    there are (were) several verities of bushings available
     
  4. oldbee

    oldbee Well-Known Member

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    Well, when the new bushing is driven in the I.D. shrinks slightly; so it has to be framed out a little. Jeez it’s been 40yrs, but I got lucky and my dad was a machinist and he got me a reamer that worked beautifully and then he took it back to his workplace.
     
  5. Dipstick

    Dipstick Well-Known Member

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    The factory burnishing tool doesn't have a ball at the end, the shaft has a slight taper from .484" at the top to .488" at the bottom. As the shaft is drawn through the bushing the .488" end does the burnishing.

    End.JPG
     
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