A guy pulls in a while I'm eating lunch comes to the door and ask's if I wanted some parts , I said what kind of parts, he said Ariens. I said well lets look at'm. We walk out and on his trailer I see a very old ariens blower, but I'm thinking he got parts laying in the bottom of the trailer, he then points to the blower and says well can you use any of them. He said if you want it you can have it , it will save me a trip to the dump. I said you bet, he then walks up his ramp gate and starts the blower drives it down the gate and off the trailer. he said it wont blow snow and told me he picked up a broken 6"piece of a county plow scraper blade in the last storm while doing the end of his driveway. Auger belt detonated, sheared the flywheel key and after replacing those found no auger drive. both augers freewheel and the pins that are in it are actually pins for farm clevis hooks not shear pins. So does anyone know is there shear pins inside the cast drive housing, by hand I can rotate the auger and move the impeller shaft just to see if I could feel broken teeth and dont feel any thats not to say the internals are not just mush, but havent played much with this old of this model.
looking for mod # however it has been painted many times cant find a tag.

As far as I know, the only shear pins on old Ariens are on the augurs, and Goober done fixed that good . . . . Likely your gearbox is toast . . .

Ariens made that bucket and auger gearcase from 1960 to 1978...I believe there is a sticky either on the Ariens forum or the repair forum

I just found a old ariens parts list online exploded view that shows a roll pin going through the big gear through the shaft inside the housing. One can Hope!

I know I could never get that lucky, but hoping for you!

I know the 924 aluminum gearboxes used a solid pin, and I've only done one of the old style and that was two years ago.....I think it was either a roll pin or solid pin, but my mind is slipping......

Cast Iron Box Should have a Roll Pin that Secures the Gear to the Shaft. You might get Lucky, 5/16 IIRC.

My 922003 gear case just had that roll pin grenade on me recently, which caused the exact description you just posted to occur. The auger rakes would spin in unison (had shear pins intact), but the rakes would spin freely like there was nothing there.

When I drained the gear case oil, four pieces of a spring roll pin came out with it, and I can look straight into one of the drain plug openings and see the roll pin opening on the helicon gear clearly without a pin inside. As the front gear (auger) shaft would spin, the opening would disappear then reappear as it turned and aligned with the helicon gear opening. I remember having to spin the impeller to get these to align.

Stuck an awl into there where it's passing through the shaft and gear openings, auger rake spinning stops and then locks with the impeller shaft like a pin's in there again. Just how much the spring roll pin exploded, not sure really...looked to me like only the ends of it came out - 4 pieces, like someone sawed the ends off and then split them in half. So I suspect the rest of the pin is still stuck in the shaft.

I simply bought a parts blower and replaced the bucket whole, but have kept the exploded one for at some point I'll tear it down to get at that pin easier.

Here's the disassembly link...

https://www.snowblowerforum.com/foru...sassembly.html