Points settings for 1957 45 ci. Flathead

Discussion in 'Other Service and Maintenance' started by TiredIron74, Aug 19, 2012.

  1. TiredIron74

    TiredIron74 New Member

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    I need the points gap for a 1957 45 CI. flat head.
     
  2. The4opps1

    The4opps1 Junior Member

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    A quick check in one of my 45 manuals shows .022".....
     
  3. Midnight Reign

    Midnight Reign Active Member

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    Cant say for sure, but I would bet that if you gap them with a paper match book it will run. That was the way I first remember seeing my grandfather do it. And for all intents and purposes thats what I have always done in the absence of having a correct spec. available.

    The gap actually measures somewhere in the neighborhood of .018 and should be close enough to get it running untill you can find the factory spec.
     
  4. scarlett jouhansen

    scarlett jouhansen New Member

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    Don't put anything between the points,all you do is get them dirty....always use a dwell meter they should be about 28 degrees dwell,,,,experiment between 27 and 31 degrees. most engine with battery/coil ignition run good at 30 degrees dwell. no matter what you "clean" a feeler gauge with they always have a coat of oil on them and they "oil" up your new points then burn
     
  5. Jack Klarich

    Jack Klarich Expert Member

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    .020 will be good to go, make sure u clean the points before and after setting them, any oil on the contacts will cause premature wear and arcing:s
     
  6. Webbtron

    Webbtron Banned

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    Makes me think of the old trick of using a match from a book of matches to set the gap.
     
  7. plow boy

    plow boy Member

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    Just wondering,was H-D still making the 45 flat head in 57.I was thinking that they were discontinued when the pan was introduced.
     
  8. Jack Klarich

    Jack Klarich Expert Member

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    Yes, The Servi car used that motor up til the end:s