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Thread: any tricks on compressing valve springs to get cotter pins in???

  1. #1
    Join Date
    Dec 2002
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    any tricks on compressing valve springs to get cotter pins in???

    i have a c clamp type device i used to get them out, but it does a good job at marring the metal around it. i've tried pushing down and using flat head screw drivers to pry them down, but i just cant seem to push them down and hold them long enough to get the cotters in. i can get 1 in but not both. if i try and use my c clamp it just gets in the way. any tips??
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  2. #2
    bad350's Avatar
    bad350 is offline At The Back Of The Pack Arm chair racerFirst time rider
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    go to autozone and rent a valve spring compressor

  3. #3
    atckowalski is offline Formerly "aaakowalski" Arm chair racerJust too addicted
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    Try a very large pair of channel locks.
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  4. #4
    leokendall is offline At The Back Of The Pack Arm chair racerFirst time rider
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    what i usally does is take a scoket around 3/8" place it over the valve stem so that the cotter are inside the socket, then just tap the socket with an and they usally pops out. but be care full u don't lose the clamps and hit the valve. i places the head on a piece of pine wood. to put the cotter pins back in, i use the same socket and place the pin just fittin snuggly on the valve stem. fill up my socket with carboad so that the end of the socket is almost fluch with bits of cardboard and ten places it over the cotter pins in place. then hits it with a and they usally goes in. and that i uslayy puts the head in my lap and taps the stem head untill they seats properly. i used this method a number of times and it's proven to work for me everytime i have done it.

  5. #5
    leokendall is offline At The Back Of The Pack Arm chair racerFirst time rider
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    just a note i'ts not a 3/8 socket, it's more like a 1/2" or a 5/8".

  6. #6
    Join Date
    May 2006
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    Ohio
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    pics? I'm confused..or explain it step by step.

    I still need to put my valves in, and I dont want to take it too a shop (I will prolly have to though, need studs pulled)

  7. #7
    leokendall is offline At The Back Of The Pack Arm chair racerFirst time rider
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    pics from me?

  8. #8
    Join Date
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    try the closed end of a wrench set it over the valve spring and push down. its easiest with 2 people but i have done it by myself a few times... a valve spring compressor is nice but they can get in the way of trying to get the retainers in

  9. #9
    Join Date
    Dec 2002
    Location
    salem, nh
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    i got it done. god damn that sucked. i used what we call a panel tool at work. i do auto glass and its the fork like tool used to pop door panels or pop push pins. the fork fit right over the retainer and the split in the middle was just wide enough to drop the cotters in.
    85 250SX New to me!!
    85 ATC 70 stock ~ TRADED
    85 ATC 70 with 138cc Lifan
    83 110 restored ~ sold
    85 110 restored ~ sold
    83 200x restored ~ sold

    02 400ex ~~~SOLD

    K&N filter
    K&N jet kit
    EHS Racing lid
    Removed choke 42 pilot DJ146 main
    HMF full exhaust
    AC skids
    Holeshot XCR rears
    14t front sprocket
    IMS Roll front bumper
    Graydon Proline nerfs

  10. #10
    Join Date
    Oct 2002
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    Glad you got it....

    The C Clamp works fine, you just need to use an appx 3/4" round tube and about 2" long in between the clamp and the valve. I make a big cutout in the pipe to allow my small needle nose pliers to get the keepers in.
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