K'nex V8 Engine

12,416

23

108

this engine was my smallest engine yet, I also have a intructions video on youtube for this engine. GOOD LUCK BUILDING!!

Teacher Notes

Teachers! Did you use this instructable in your classroom?
Add a Teacher Note to share how you incorporated it into your lesson.

Step 1: Crank Shaft

the first thing!!

Step 2: Pistons

compact pistons, yet easy

Step 3: Crank Case

do not fill with oil!!

Step 4: Cylenders

for the pistens.

Step 5: Cam Shaftand Pushrods

the red conectors for the push rods should line up and stand up acuatly for the next step.

Step 6: Finishing

Step hardest step, and last step!!

Be the First to Share

    Recommendations

    • Book Character Costume Challenge

      Book Character Costume Challenge
    • Made with Math Contest

      Made with Math Contest
    • Cardboard Speed Challenge

      Cardboard Speed Challenge

    108 Discussions

    0
    None
    Duncan Codd

    6 years ago on Introduction

    I added two battery powered k'nex motors to a gear and it works great.

    picture041.jpg
    0
    None
    vonster

    7 years ago on Step 3

    how does the crank shaft connect into one piece so that when you turn the crank it moves as one? - thanks

    0
    None
    171292

    8 years ago on Step 6

    If you wanted to, how would you add valves and rocker arms to this?

    4 replies
    0
    None
    171292needles300

    Reply 8 years ago on Step 6

    I've tried... and failed. I just don't know how! >:-0 I need to make this for next week for a school science fair, and I NEED HELP!!!! is there any models or anything that you used to help you in the makings of your engine or anything? Or, if you remember, could you contact me at williamcondie@hotmail.ca please? Thanks!

    0
    None
    needles300171292

    Reply 8 years ago on Step 6

    i made this 3 years ago but if you wach my video--- http://www.youtube.com/watch?v=U0Q9RbXeMHc
    you can stop the video when you see the valves, i used elastic bands for it but it wound work better with small springs. its all a got to help you so i hope it works out for you.

    0
    None
    171292needles300

    Reply 8 years ago on Step 6

    Thanks! The rocker arms are on and the engine works fine! :-D

    0
    None
    lilbigmanb

    9 years ago on Step 6

    TO MAKE IT RUN USE A CORDLESS DRILL TO ONE END OF THE CRANK SHAFT ITS REALLY COOL

    5 replies

    instead of using black hinges can we use one gray connector and allternate through the crank shaft so its a v4 ND NOT A V8