I have an old Noma Canadiana 2-stage snowblower (Briggs & Stratton 8hp Engine), not sure of the model or year offhand (I am currently at work and can get it when I go home).
In the meantime, my issue is with the "torque" of the Impeller. To go back to what has recently happened:
- Last week, trash removal guys spilled my trash in my driveway. One of the things spilled was a 4" bolt. That bolt got picked up by my snowblower... as soon as it went into the impeller and I heard the noise, I immediately shut off the snowblower.
- After (safely) successfully removing the bolt from the impeller, I checked the Auger shear pins and both were intact with no breakage. I tested out the auger and impeller while the snowblower was not picking up snow and everything was working perfectly fine.
- I finished blowing out the driveway and suffered no further issues.
- Saturday morning, I went to clear my driveway full of very light "lake effect" snow. (It wasn't heavy/wet snow, nor was it packed down.) After completing about half the driveway, the Auger and Impeller stopped rotating.
- Removed the belt cover and saw that the Auger belt had come off the pulleys. I put the belt back on and noticed it was a bit loose. Since I had a spare belt, I decided it was best just to replace the belt. The new belt was a little more "tight" but still seemed a bit loose.
Currently, the Auger and Impeller both rotate properly... the snowblower picks up snow and does blow it as it always has. The problem is that the impeller doesn't seem to have enough "torque" when it attempts to throw the snow up the chute. I have to be sure to move VERY slow (1st gear out of 6) and hope that the snow is light and fluffy in order to get the snow to be thrown. Any time the snow is heavy or there is a lot of it picked up by the auger, the chute clogs or barely throws it 3".
The belt still seems a bit loose (my opinion, I am not sure how tight it should be). Also, of note: The auger still does not disengage when I let go of the clutch handle, but it was that way before all of this happened. The auger shaft (that has the pulley on it , propelling the auger and impeller) seems to have some "play" up and down where it goes through what I would call the "firewall" of the snowblower into the belt area. I have a feeling that this "play" is what is causing the loose belt and therefore the lack of torque, but I can't see any way of making that a tighter fit.
Anyone have any clue? If you look on this diagram, page 1: http://www.askmehelpdesk.com/attachment.php?attachmentid=28962&stc=1&d=1265571638, the part that has the "play" in it is between 490 (retainer ball bering) and the impeller (493).
Thanks in advance...
