BOA Cosworth Spark Plug Covers - What screws?!

Discussion in 'Capri Chit Chat' started by robt100, 13 April 2022.

  1. robt100

    robt100 Registered Capri Power Member

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    Thought I'd try and pop this in here to get more coverage as someone may know. Went to put my spark plug covers back on my BOA cossie engine the other day, turns out the screws have went walkabout! Does anyone know the size/thread/depth of the screws that hold the spark plug covers down, or could measure them and let me know so I can get some replacements??
     
  2. Clockwork Orange

    Clockwork Orange Glasgow Subway- Keeping it simple since 1896 Staff Member Administrator

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    nope.. but bet its something simple like M5 or something .. try a bit of experimenting
     
  3. robt100

    robt100 Registered Capri Power Member

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    Bit expensive to experiment with buying multiple packs of screws CO :p:D
     
  4. Clockwork Orange

    Clockwork Orange Glasgow Subway- Keeping it simple since 1896 Staff Member Administrator

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    you dont have a box of shite like every Capri owner?
    bolts and studs, different threads of anything ??
     
  5. robt100

    robt100 Registered Capri Power Member

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    Nothing remotely like the length or head type that would fit. Look like they might be M10 or M8 (maybe even M6) countersunk hex screws? Not sure on depth though.
     
  6. caprinerd

    caprinerd Registered Staff Member Administrator

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  7. Lord Flasheart

    Lord Flasheart Registered Staff Member Administrator

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  8. Ptgladstone

    Ptgladstone Registered Capri Power Member

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    I am pretty sure they are m8 x 1.25 mm pitch around 18mm long. You want the countersink ones or thin washer type bolts

    A74C917C-41F5-4AB4-A776-2FCC91553CB8.png
     
    SIDEWAYS 3.0 GHIA likes this.
  9. robt100

    robt100 Registered Capri Power Member

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  10. Ptgladstone

    Ptgladstone Registered Capri Power Member

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    Yeah or these

    702DBE3E-6785-461E-9680-74792138896F.png
     
  11. robt100

    robt100 Registered Capri Power Member

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    Well, I can confirm that the holes are NOT M8 :rolleyes: Looks like they might be m10 going by the play/gap around the M8 bolt. Has anyone got the chance to measure and photograph their ones on their BOA?
     
  12. Ptgladstone

    Ptgladstone Registered Capri Power Member

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    Must m10 then
     
  13. Clockwork Orange

    Clockwork Orange Glasgow Subway- Keeping it simple since 1896 Staff Member Administrator

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    can you put a picture up indicating the bolt holes you're talking about Robert
     

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