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Technical Pontiac Straight Eight Lock Down Cap

Discussion in 'The Hokey Ass Message Board' started by carmuts, May 7, 2016.

  1. carmuts
    Joined: Jun 17, 2009
    Posts: 874

    carmuts
    Member

    Thought I would share some pics of this Straight Eight lock down cap I found in one of my boxes of parts while moving things parts out of the buildings at the farm. I had forgot all about having it. This is the only one of these I can remember seeing so figure it is somewhat rare. Rod
     

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    jnr49 likes this.
  2. jnr49
    Joined: Mar 24, 2013
    Posts: 48

    jnr49
    Member
    from australia
    1. Aussie HAMBers

    ill have to go out and see if i have one on my straight 8 now
     
  3. carmuts
    Joined: Jun 17, 2009
    Posts: 874

    carmuts
    Member

    Up until this one that was in the large parts purchase from a now closed salvage yard I had never seen one for the straight 8. Never owned a straight 8 car, but nearly bought one while I was in highschool. It ran nice, but I backed out due to the sketchiness on 40 year old wiring. Looked like a fire waiting to happen. I did not know at that time that several companies sell accurate high quality wiring harnesses for a variety of cars. I did not want to tackle making my own with the knowledge and skills at that time. Rod
     
  4. 302GMC
    Joined: Dec 15, 2005
    Posts: 6,986

    302GMC
    Member
    from Idaho

    Where did you come up with "lockdown cap" as a name for the item ? It's a valve adjusting tool, used to tell which cylinder is TDC when setting clearance.
     
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  5. carmuts
    Joined: Jun 17, 2009
    Posts: 874

    carmuts
    Member

    Looked like a lockdown cap to me. Thanks for the clarification. Makes more sense based on the parts lot it came from. Rod
     
  6. 302GMC
    Joined: Dec 15, 2005
    Posts: 6,986

    302GMC
    Member
    from Idaho

    So, just what IS a lockdown cap ... I'm old & haven't seen one yet ...
     
  7. Gofannon
    Joined: Feb 8, 2007
    Posts: 713

    Gofannon
    Member

  8. Gofannon
    Joined: Feb 8, 2007
    Posts: 713

    Gofannon
    Member

    By the way Carmuts, that is a cool piece. It'd be easy to get lost on a straight 8 doing the valve clearances.
     

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