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I Am Almost Certain No One Knows...

Discussion in 'Intermediate CJ-5/6/7/8' started by The Wizard, Sep 25, 2022.

  1. Sep 25, 2022
    The Wizard

    The Wizard Member

    Colorado...
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    What the size of the cotter pin (P/N G121222 or G121224) that hold the master cylinder push rod on the stud on the brake pedal on a 1974 CJ5. But I am posting this on the outside chance someone does know.
     
  2. Sep 25, 2022
    danielbuck

    danielbuck Uncle Buck

    USA
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    might be a good idea to pick up a small assortment of cotter pins. or in a pinch you can use a small nail and bend the end over. maybe grind the sharp tip down first. :D
     
    scoutpilot and dnb5853 like this.
  3. Sep 25, 2022
    PeteL

    PeteL If it wasn't for physics, and law enforcement... 2022 Sponsor 2021 Sponsor 2020 Sponsor

    Hills of NH
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    You can buy a box of hundreds, assorted sizes, for ten bucks. Cheaper than the time spent going to the hardware store even once.
     
    scoutpilot likes this.
  4. Sep 25, 2022
    Fireball

    Fireball Well-Known Member 2022 Sponsor 2021 Sponsor 2020 Sponsor

    Pullman, WA
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    You must be a farmer.
     
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  5. Sep 27, 2022
    Jeepenstein

    Jeepenstein Me like Jeep..

    North Central FL
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    We've all done it, but the first rule of "rig it club" is , don't talk about rig it club..
     
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  6. Sep 27, 2022
    Lockman

    Lockman OK.....Now I Get It . 2022 Sponsor 2021 Sponsor 2020 Sponsor

    White City, NY 14617
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    .....If one can't ' make shift ' (sic) , then one isn't ' worth a Shift ' (sic) :lol:
     
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  7. Sep 27, 2022
    Twin2

    Twin2 not him 2022 Sponsor 2021 Sponsor 2020 Sponsor

    Virginia Beach, VA
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    looked at a used riding lawn mower
    want to guess what was holding one front wheel on spindle :shrug:
     
    Ol Fogie and dozerjim like this.
  8. Sep 27, 2022
    colojeepguy

    colojeepguy Colorado Springs

    At the foot of...
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    Better than welding it on....yes, I've seen it done.
     
    Ol Fogie likes this.
  9. Sep 27, 2022
    Twin2

    Twin2 not him 2022 Sponsor 2021 Sponsor 2020 Sponsor

    Virginia Beach, VA
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    no but have seen that too
    the one I looked had a nail for cotter pin . and the guys was asking 600 for mower
    he has a home lawn mower repair business
    I asked if he was firm on price . he said yes it's early in season
    as to OP question . HF sells a assortment box
     
    Last edited: Sep 27, 2022
  10. Sep 27, 2022
    danielbuck

    danielbuck Uncle Buck

    USA
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    Jan 22, 2013
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    My 46 had nails holding the washers on for all 4 shocks when I got it, I put them back in after I repalced the shocks. I believe the rears still have nails in them, 12 years later :lol: It's my daily driver except in the rainy part of winter.
     
    Fireball likes this.
  11. Sep 27, 2022
    nickmil

    nickmil In mothballs.

    Happy Valley, OR
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    When I’m looking at something half-arsed like this for sale I have to ask myself and the seller what else was half-arsed. Cotter pins are very inexpensive and reliable. I’ve seen nails worn more than halfway through.
     
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  12. Sep 27, 2022
    danielbuck

    danielbuck Uncle Buck

    USA
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    it's been daily driven for 12 years, and gone on lots of long trips, including coast to coast and back.... nails are strong. And I don't mind a bit of redneck on my jeeps :D

    I do have a wide selection of cotter pins, but I used the nails in the shocks because I thought it was funny, but they do work.
     
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  13. Sep 28, 2022
    Oldpappy

    Oldpappy A.C. Fults - Curmudgeon at large 2022 Sponsor 2021 Sponsor

    East Tennessee
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    My CJ2A had nails holding the shocks on, the spring hangers on the front had been repaired with 3/4" water pipe crudely welded in, shackles made of very rough bar stock and stove bolts. Attractive in a redneck kind of way, but I replaced all of that.
     
  14. Sep 29, 2022
    Ol Fogie

    Ol Fogie 74 cj5 304, 1943 mb 2020 Sponsor

    Southern...
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    I don't mind nails and such holding on shock absorbers or tailgate latches and so on. But. There was a local guy who often came along on wheeling trips with us who had a 67 cj5. One day while standing near the front of his jeep I noticed the tie rod ball socket to the right steering knuckle was tied together with bailing wire. I ask him about it and he said it fell off a couple years ago, I just tied it back with wire, works fine.:shock: We never invited him any more. That was 30 years ago and he is still alive. Some people have all the luck.
     
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  15. Sep 29, 2022
    nickmil

    nickmil In mothballs.

    Happy Valley, OR
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    So if you take your vehicle into a shop and have the suspension or steering worked on you want to see it come back with nails instead of cotter pins installed? nails vary so much in strength, hardness, etc. that they are simply not dependable as a fastener except for their intended purpose. You did that in my shop (and any reputable shop I know) and you would be fired in about 10 seconds. And again, It calls into question about any other work done on the vehicle. Appearances matter whether we like it or not.
    Another thought, many organized trail runs I’ve been on have had safety inspections. Things like that were red flags that precluded vehicles from being allowed on the run.
     
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  16. Sep 29, 2022
    nickmil

    nickmil In mothballs.

    Happy Valley, OR
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    I don’t get why if you have the correct stuff to half arse something. Nothing funny about it. In the automotive business we have a name for that but I cannot repeat that here. They work, until they fail and cause a catastrophe.
     
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  17. Sep 29, 2022
    The Wizard

    The Wizard Member

    Colorado...
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    I seriously considered NOT sharing the correct solution, as the majority seemed not to give a rat's rear end about the correct repair. But for those out there that are serious about doing things RIGHT the correct cotter pin size is 3/32 (.094) diameter by 1 inch long. Those who have a garage full of duct tape, baling wire, JB weld, nails and chewing gum can disregard this post.
     
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  18. Sep 29, 2022
    PeteL

    PeteL If it wasn't for physics, and law enforcement... 2022 Sponsor 2021 Sponsor 2020 Sponsor

    Hills of NH
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    There is a middle ground.

    In place of a Dealer Certified part, someone who understands the underlying engineering needs of the application may legitimately and safely use a functional equivalent.

    That might even be a nail, for instance. There is nothing magic about a cotter pin.

    There was an analysis of this in "Zen and the Art of Motorcycle Maintenance" by Robert Pirsig, where he pointed out that a piece of beer can worked perfectly well as a shim, but it freaked out his buddy.
     
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  19. Sep 29, 2022
    Zoomer

    Zoomer eJeeper (walking) 2020 Sponsor

    Minnesota
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    G121222 comes up as a Packard cotter pin part number according to Google. One site says it's 3/32 X 3/4
     
  20. Sep 30, 2022
    47v6

    47v6 junk wrecker! 2022 Sponsor 2021 Sponsor 2020 Sponsor

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    I finally read that book a couple years ago. I was dismayed to hear of the esteemed authors demise because I missed the opportunity to slap his sanctimonious, self centered face. I thought about digging his body up and slapping his corpse a bit, but he wasn’t even worth the effort. It seems like that book he wrote does that with every turned page… what absolute trash..


    I agree that nails are not a good substitute for cotter pins, but I grew up on a farm and you just need to replace them with new ones as they wear out!:rofl:
     
    Fireball likes this.
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