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Technical what is the Total Dwell on a Dual Point Dist.

Discussion in 'The Hokey Ass Message Board' started by a50merc, Oct 2, 2016.

  1. I have a GM Dual Point Tack Dist & I forget what the Total Dwell of it is
    I know what each of Points is supposed to be
    But I want to know the Total is it 38 degrees
    thats what happens when you get Old
    Just my 3.5 cents
    or when the Cows
    come Home!
     
  2. not GM....i once had an Accel dual point , the instructions said 36 degrees total
     
  3. Dan Timberlake
    Joined: Apr 28, 2010
    Posts: 1,327

    Dan Timberlake
    Member

    In 1957 Chevy said this about dual point Corvettes' dwell.
    http://chevy.oldcarmanualproject.com/manuals/1957csoc/57csoc19.html

    The tune-up section starts over 2 dozen pages earlier.
    http://chevy.oldcarmanualproject.com/manuals/1957csoc/57csoc02.html

    The very first step was removing the spark plugs, followed immediately by a compression test.
    The ignition points were inspected and adjusted, not necessarily replaced ( and adjusted). Even the points spring tension was checked and adjusted if necessary. Plus torquing the manifolds, head bolts, measuring the cranking voltage, and a whole bunch more. It is most unfortunate that tune up degenerated to plugs-n-points.
     
  4. saltflats
    Joined: Aug 14, 2007
    Posts: 10,901

    saltflats
    Member
    from Missouri

    Each set 28 to 30 both sets 33 to 35
     
    dana barlow likes this.

  5. The is a Corvette 63 Vintage Dual Point Tack Drive,
    Needle Point Dist.
    which has served me Right in my Racing Days & in My Merc 327/300 hp
    63 version
    since I was doing a Complete Tune up on the Car
    I wanted to know!
    Thanks to All for the Imfo
    Dom.
     
  6. slowmotion
    Joined: Nov 21, 2011
    Posts: 3,276

    slowmotion
    Member

    I've always set mine in the neighborhood of what Saltflats said:
     
    dana barlow likes this.
  7. thank you Slowmotion

    Just my 3.5 cents
    or when the Cows
    Come Home.!
     
  8. yes what they said.....but it always helps to know.....what distributor we're working with.....like the # on it....
     

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