Snow Blowers and Throwers

For those looking to maintain, use, purchase, or get the most out of their snow blowers and snow throwers.

HOW TO ADJUST Snowblower Belt Idler Pulleys

Written By: Snow Blowing Man - Jul• 21•12

Check out this video for very useful information on how to adjust your snowblower belt idler pulleys. Visit my channel for more repair videos;
Video Rating: 5 / 5

Originally posted 2011-11-27 15:03:50. Republished by Blog Post Promoter

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  1. ArmyFtBall says:

    great video

  2. donyboy73 says:

    @mcharb7522 yes, but try very small adjustments first

  3. mcharb7522 says:

    @donyboy73 tried bending it, but there’s not much room to play with. Should the idler pulley be in ‘perfect’ alignment with the auger pulley and the main disc pulleys?

  4. mcharb7522 says:

    @donyboy73 I’d love to make a video of it, but I’ve spent 4 hours in the garage trying to figure it out. I put it all back together and moved it to it’s final resting place. I’m done for today. The wife and kids will be home soon, but if I get another chance to look at it, I’ll make a video and post it.

  5. donyboy73 says:

    @mcharb7522 what I think, and i’ve seen this before is that the idler pulley arm may need to be bent slightly to one side or the other to re-align the belt.

  6. mcharb7522 says:

    @donyboy73 the body is good. No cracks whatsoever.

  7. donyboy73 says:

    @mcharb7522 make a video and post it so i can see it

  8. donyboy73 says:

    @mcharb7522 the body may be rusted or cracked like in the vid i sent u

  9. mcharb7522 says:

    @donyboy73 arghhh!!! same thing still happening. Can’t figure it out. Do you want to buy a perfectly good MTD, besides the belt always popping off 😉

    What about using a smaller belt? Do you recommend trying that out?

  10. donyboy73 says:

    @mcharb7522 also watch this vid to make sure u don’t have this problem A Parts Snowblower & What is Wrong With It

  11. donyboy73 says:

    @mcharb7522 sometimes u have to bend the idler pulley arm, it could have been forced out of position when replacing the belts. people do it all the time

  12. mcharb7522 says:

    Hi Donyboy,

    Marc from Ottawa here. I have a 10HP MTD, with 2 auger belts. I’ve replaced them following the very informative videos from another post. I have a problem though, every time I fire up the engine, the belt closest to the engine keeps jumping off. The idle pulley can’t be adjusted like you show in this post. Any ideas how to keep the belt from jumping?

  13. Lew1983ryan says:

    I am new at this and not sure if you understand my problem.
    It is the hole in the aluminum housing that is stripped – where the bolt that holds the belt tensioner pully bracket on. How do I fix this? Maybe do a vido on this.

  14. Lew1983ryan says:

    What do you do if you strip the hole/threads where you bolt on the idler drive pully bracket?

  15. donyboy73 says:


  16. Lew1983ryan says:

    Thank you for responding so fast.
    I am not sure if I explined it correctly. I don’t have the room for a longer bolt, It is the hole in the aluminum housing that is stripped where the bolt that holds the belt tensioner pully bracket on. I tried to tap new threads in it it & reuse the same bolt which was fine thread but it didn’t work.

  17. donyboy73 says:

    @Lew1983ryan usually put a nut behind and a longer bolt

  18. Lew1983ryan says:

    Great vidoe – really helped to install my belts and Friction disk.
    What do you do if you strip the hole/threads where you bolt on the idler drive pully bracket?

  19. maryballon says:

    yaw your beautiful man, thanks. you help save my back.

  20. pj21mm392 says:

    Great video! Thanks!!! I have a craftsman 9 horse 2 stage. great engine but all kinds of problems since day 1 with other parts of the blower. My auger belt broke last night. Now I can fix it myself. You were very specific and din’t skip anything. Very helpful.

  21. HMToomey says:

    THANK YOU! I just fixed my snow blower thanks to this and I can now return the belts that I had bought for it!!!!

  22. pyrophilster says:

    great vid Don

  23. ringbolt9 says:

    always informative and great stuff

  24. warbirds3339mike says:

    Thanks again My Friend Well Done,

    Mike in Frozen New Jersey

  25. donyboy73 says:

    @xaaps2010 the blower in the video has the drive belt tight always, only the auger belt is loose when lever disengaged

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