How To Replace a Lawnmower Crankshaft

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  • Опубліковано 27 кві 2020
  • In today's video, I will replace the crankshaft on my Craftsman 750 Series self propelled lawnmower.
    The content in this video might not be applicable to your exact piece of equipment. Any damage or loss to persons or property that may result from use of information contained in this video is the sole responsibility of the user and not Brant Small Engine Repair.
    Brant Small Engine Repair encourages the use of safe practices and safety equipment while working on your machines and therefore assumes no responsibility for personal injuries. The information contained in this video shall be used at viewers discretion.
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КОМЕНТАРІ • 21

  • @humblewarrior6585
    @humblewarrior6585 21 день тому +1

    Very Helpful Thank the Lord and Your Video !!!...God Bless !!!

  • @tarunarya1780
    @tarunarya1780 Рік тому

    Really helpful great video. Watched as was really looking for crankshaft bottom seal replacement as mine leaked very quickly after new, and then bought new mower as did not have time then. Any tricks for fixing/replacing seal or video?

    • @brantsmallenginerepairs
      @brantsmallenginerepairs  Рік тому

      I don't have a video but here's a link to donyboy73. He's got a video over there. Hope this helps. Cheers
      ua-cam.com/video/Vt1pCModeMM/v-deo.html

    • @tarunarya1780
      @tarunarya1780 Рік тому

      @@brantsmallenginerepairs Perfect. Thanks.

  • @jackd23
    @jackd23 11 місяців тому +1

    I was wondering, for the nut on the crankshaft (flywheel side), is it clockwise or counter-clockwise to loosen? I'm a bit lost on conflicting search results, and without an impact drill heh.

    • @brantsmallenginerepairs
      @brantsmallenginerepairs  10 місяців тому +1

      On mowers, it would be counterclockwise to remove. On some 2 strokes, it's the reverse. Hope this helps. Cheers

  • @ariela51
    @ariela51 22 дні тому

    There is a small, thin washer that came with the small, plastic, black gear that attaches to the crankshaft. In putting things back together and assuming working on this engine upside down as you have it here, would you happen to know if that washer would sit on top of the gear or on the bottom? Thanks!

    • @brantsmallenginerepairs
      @brantsmallenginerepairs  19 днів тому

      Bottom of gear. Washer goes on shaft first, then gear. Thanks for watching and taking the time to leave a comment. Cheers

  • @Logan_Neasbitt
    @Logan_Neasbitt 2 роки тому +1

    Can you open it up without removing the fly wheel

  • @thephreak2151
    @thephreak2151 Рік тому

    Is it possible to weld the shaft that the blade bolts to? Sadly i have a spot next to the keyed out area that broke off.
    just wasn't sure if the metal is cast or steel.

    • @brantsmallenginerepairs
      @brantsmallenginerepairs  Рік тому +1

      That's a good question and I'm not exactly sure. It's not something I would try due to liability so it's never crossed my mind. I would say it's cast so not sure how that might work out. Sorry.

    • @thephreak2151
      @thephreak2151 Рік тому

      @@brantsmallenginerepairs Thank you for the reply and no problem, it looks like cast but wasn’t sure if it was ever done. My worry was if I didn’t get it balanced after welding and cleanup would it have an adverse effect on it.

    • @brantsmallenginerepairs
      @brantsmallenginerepairs  Рік тому +1

      @@thephreak2151 I think it definitely would but to what extent? It's definitely out of balance right now with a chunk missing so stands to reason if you could weld it, it would be better than it is now.

  • @sootie620
    @sootie620 2 роки тому +1

    Where did you source your new crankshaft from ??

    • @brantsmallenginerepairs
      @brantsmallenginerepairs  2 роки тому +2

      It was a used one from one of my other mowers. If you're looking to replace one, try a small engine mechanic in your area or look for a cheap mower in the classifieds that has the same engine. Otherwise, you might want to try an online parts seller like Jack's Small Engines or ProParts Direct. Good luck.

    • @sootie620
      @sootie620 2 роки тому

      @@brantsmallenginerepairs I am a small engine mechanic but with the pandemic new parts are harder to source 👍

    • @brantsmallenginerepairs
      @brantsmallenginerepairs  2 роки тому

      I know what you mean

  • @nathanielhelloms2009
    @nathanielhelloms2009 4 місяці тому

    How you take the pully off the shaft my pully and blade plate are stuck

    • @brantsmallenginerepairs
      @brantsmallenginerepairs  4 місяці тому +1

      Thanks for watching. Here is a video on how to remove a stuck blade adapter. Cheers.
      ua-cam.com/video/QpmJbCYfLqg/v-deo.htmlsi=D69V8WJ1Z8nEzdxQ