Fighthouse 1 #1 Posted 3 hours ago Hey All, it's been a number of years since I was last here. I still have a 312-8 that was left to me, and have used it for a number of projects over the years. Most recently I picked up a 42ST02 snowblower to help with snow removal off of facebook marketplace. It had obviously sat outside for a long time, but the auger spun and I was looking forward to fully rehabing it. I started to take it apart slowly last week, and came up against an early roadblock. The set screws on the collars and pulleys on the back end of the attachment seemed pretty stuck. I treated them with PB blaster multiple times over the course of a few days, and then set into them with some heat and tried to work them out. There are a total of 8 set screws for 4 items, and I have only been successful at working 3 of them out so far. The big issue that I have that I caused for myself is that I have broke two allen/torx bits off inside of two of the screws trying to work them out. I'm trying to see if there is any advice on how to get these out that I haven't thought of. Drilling the bits out didn't work because the allen bits are harder than my drill bits. I know some people weld a nut or something on top of them, but welding is one of the things I have never gotten into or bought for my shop. Share this post Link to post Share on other sites
ri702bill 12,911 #2 Posted 1 hour ago (edited) The collars are short money to replace - why not carefully cut a slot thru it (them) parallel to the shaft? that allows you to spread it (them). Heat may help loosen the fasteners too.... Also, using a left handed twist drill can sometimes free them up once the penetrating oil has done its job.... Where in RI are you? Bill Edited 1 hour ago by ri702bill 1 Share this post Link to post Share on other sites
wallfish 20,552 #3 Posted 1 hour ago Sometimes I value my time more than the part. Like 20 hours to fool with a shaft and those parts or 1 hour to cut it and replace the shaft, sprocket and collars if you can save the pulley. I'd assume bearings would change either way if they are needed. And many times I fix stuff that would've been much easier to change to a new part too. And many times I spend way too much time trying to fix something, then give up and still end up going with new parts LOL 3 Share this post Link to post Share on other sites
Fighthouse 1 #4 Posted 26 minutes ago 1 hour ago, ri702bill said: The collars are short money to replace - why not carefully cut a slot thru it (them) parallel to the shaft? that allows you to spread it (them). Heat may help loosen the fasteners too.... Also, using a left handed twist drill can sometimes free them up once the penetrating oil has done its job.... Where in RI are you? Bill I used to live in Foster, but moved right over the border not too far away in CT. How would I cut the collars without damaging the areas around it? An angle grinder wouldn't have enough clearance to cleanly cut most of them. A dremel might do it, but I'd probably go through a lot of cutoff wheels. Share this post Link to post Share on other sites
