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49 blower gearing

661 Views 11 Replies 9 Participants Last post by  jdmaninlouky
I posted on this quite a while ago but I've seen it come up a few times and had some emails about it, so I'll post it again.

For anyone who thinks their 49 blower doesn't throw the snow far enough, try changing the driven sprocket (on the auger) to one with 4 less teeth than what is currently on it. This is the equivalent of the 10% speed-up pulley on the 50" decks. You'll get around 8 feet of extra distance on the snow and probably notice it doesn't plug up quite as easy with heavier snow either. It puts slightly more load on the engine, but nothing serious.

I did this to mine last fall and now I don't have to throw the snow twice just to clear the driveway.
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Art and Roger,

The horizontal engined tractors have a nominal air gap of around 0.018 inches, while the vertical motors usually have a larger nominal gap of 0.020 to 0.024 inches.

Also, Deere recommends engaging and disengaging the PTO at part throttle, but using WOT while mowing:

From the description of the drag on the engine when engaging the PTO when cold, you may have the gap set too small and the integral brake in the PTO is dragging until everything expands with increased temperature...

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