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  •  » FYI Ford, Classic Mustang Tech Discussion
  •  » Spark plugs

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    11/26/2020 5:18 PM  #1

    Rudi
    Senior 24-7 FYI Addict

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    From: Stuck in the 50's Welland Ca
    Registered: 4/01/2013
    Posts: 3,784

    Spark plugs

    I have not touched them for a couple of years.
    Anyone here bead blast them, regap them and screw them back in.
    Back in the day any auto shop worth it’s weight in salt had a plug blaster , or I could just put the new set that’s on the shelf in.
    I have been running them at .060”, wonder if I should try .040”
    Crane ignition with  LX 91 H/O blaster coil.

    Good work ain't cheap, Cheap work ain't good!   Simple Man
     

    11/26/2020 6:39 PM  #2

    Nos681
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    From: Atlantic Mine, Michigan
    Registered: 7/14/2016
    Posts: 3,058

    Re: Spark plugs

    Duraspark distributor/Jacobs ignition and Ultra Coil/69 Windsor heads, I set at .050”

    Even stock Duraspark for 78 Granada 302 was .050” federal/ .060” California

    92 Mustang stock 5.0 EEC-IV is .054”

    As dad usta tell me over and over and over,

    “If it works don’t fix it..Dan!!”

    So apparently this doesn’t apply to you Rudi.
    Just a small wire brush and degreaser/carb cleaner/small screwdriver for cleanup.
    Maybe some day a plug cleaner.

    Last edited by Nos681 (11/26/2020 6:42 PM)

     

    11/26/2020 6:58 PM  #3

    BillyC
    I FYI 24-7

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    From: Chesapeake, Va.
    Registered: 4/02/2013
    Posts: 965

    Re: Spark plugs

    Mine have been in the car 10 years. I drive it a lot. Tune it every spring along with an oil change and fuel filter change.
    it runs very strong.

    "anyone that stops learning is old, whether at twenty or eighty"Henry Ford
     

    11/26/2020 7:32 PM  #4

    50vert
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    From: QLD Australia
    Registered: 4/01/2013
    Posts: 1,357

    Re: Spark plugs

    Sorta related ... has anyone had experience with the HF style plug blaster? I can get the same style here, but not at HF prices, and the reviews are not consistently good or bad.

    "Those telephone poles were like a picket fence"
     

    11/26/2020 7:37 PM  #5

    RPM, aka Bearing Bob
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    From: Bakersfield, Ca
    Registered: 9/17/2013
    Posts: 3,247

    Re: Spark plugs

    If and when I remove them, I hit them carb cleaner, then the wire wheel and check gap.

    Bob. 69 Mach 1, 393W, SMOD Toploader, Armstrong  steering, factory AC.
     

    11/26/2020 8:51 PM  #6

    Rudi
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    From: Stuck in the 50's Welland Ca
    Registered: 4/01/2013
    Posts: 3,784

    Re: Spark plugs

    Just wondering if bead blasting harms the glaze on the porcelain?

    Good work ain't cheap, Cheap work ain't good!   Simple Man
       •Thread Starter
     

    11/27/2020 11:31 AM  #7

    TKOPerformance
    Hyper FYIFORD ADDICT

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    From: Newark, DE
    Registered: 12/15/2014
    Posts: 7,084

    Re: Spark plugs

    It would depend on what the electrode looked like.  Once the tip starts to round off on it they really should just be replaced.  Cleaning them and reusing them if they are otherwise in good shape should be fine.  I've done that on a ton of fouled out plugs for 2 strokes over the years.  Usually I just blast them with a good carb cleaner like 2+2 and then wire brush them and blast with cleaner again.  Never tried the blasters, seems like you would need to do a lot of plugs to make that worthwhile.  Modern engines burn so clean that by the time you have plug issues the plugs are just shot.  Typically they are designed to go 100k or more without issue thanks to platinum electrodes. 

    Last edited by TKOPerformance (11/28/2020 7:54 AM)

     

    11/28/2020 7:45 AM  #8

    BobE
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    From: White Plains, NY
    Registered: 4/04/2013
    Posts: 2,200

    Re: Spark plugs

    Rudi wrote:

    Just wondering if bead blasting harms the glaze on the porcelain?

    From what I understand, the bead blasting does harm the glaze on the porcelain.  
    Interesting, my father had a spark plug blaster, I haven't seen one in years. 

    65 Fastback, 351W, 5-speed, 4 wheel discs, 9" rear,  R&C Front End.
     

    11/28/2020 8:40 PM  #9

    bearcat
    I FYI 24-7

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    From: Twin falls, Idaho
    Registered: 4/01/2013
    Posts: 337

    Re: Spark plugs

    Used a spark plug cleaner last spring. A buddies worked great just insure you get all the blasting media out of them.

    65 coupe, 351w, c4, power disk brakes, power r&p, vintage air.
     

    11/28/2020 10:05 PM  #10

    Rudi
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    From: Stuck in the 50's Welland Ca
    Registered: 4/01/2013
    Posts: 3,784

    Re: Spark plugs

    bearcat wrote:

    Used a spark plug cleaner last spring. A buddies worked great just insure you get all the blasting media out of them.

     
    I have a blast cabinet and anticipate using glass beads for media to clean up the plugs.

    Good work ain't cheap, Cheap work ain't good!   Simple Man
       •Thread Starter
     

     

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