Scotsman 46 #1 Posted December 22, 2013 Due to working my 312-8 snowblower hard,I smoked a pulley right off. the bearing is still on, but the pulley came off. By the way my nephew left a foot long plastic toy truck in the driveway. It didn't even slow down the blower! Just made a sound......well a sound like a toy truck going through a snowblower! 1 Share this post Link to post Share on other sites
AMC RULES 36,945 #2 Posted December 22, 2013 Growl, crunch, crackle, swooooosh. Share this post Link to post Share on other sites
gwest_ca-(File Mod) 10,508 #3 Posted December 23, 2013 Did you lose an idler pulley or the driven pulley on the shaft? 3/4" shaft or 7/8" shaft? Garry Share this post Link to post Share on other sites
Scotsman 46 #4 Posted December 23, 2013 I am not near it right now,but its almost an inch so it must be 7/8 It was the one with the L shaped bracket to keep the belt on. Share this post Link to post Share on other sites
gwest_ca-(File Mod) 10,508 #5 Posted December 23, 2013 Believe this was the first model to use a 7/8" shaft The 7/8" shaft is item 28. Item 5 is the V-idler #7451. This is the same as the tractor clutch idler pulley. Napa HD 7-05485 is a replacement with a real ball bearing in it. Which part failed? Garry 1 Share this post Link to post Share on other sites
Scotsman 46 #6 Posted December 23, 2013 (edited) Wow Garry thank you so much! The bearing case stayed bolted on and the pulley came off cleanly like I pressed it out! Are the napa ones beefy like my old one? As they say"they don't build em like they used too" Edited December 23, 2013 by Scotsman Share this post Link to post Share on other sites
gwest_ca-(File Mod) 10,508 #7 Posted December 23, 2013 Napa has a regular idler with bicycle bearings but the HD Napa one has a 6203 bearing I believe that is bushed down to 3/8" for the bolt. I like them and usually this style is riveted together. I have drilled the rivets and replaced the bearing because I keep spare bearings but not spare idlers. Garry Share this post Link to post Share on other sites
Scotsman 46 #8 Posted December 23, 2013 (edited) Well the good part is I don't have to press out the old bearings, I can just press the new ones ib. I only have a vise so I am in luck. Thanks Garry Edited December 23, 2013 by Scotsman Share this post Link to post Share on other sites
Ed Kennell 35,883 #9 Posted December 23, 2013 Due to working my 312-8 snowblower hard,I smoked a pulley right off. the bearing is still on, but the pulley came off. By the way my nephew left a foot long plastic toy truck in the driveway. It didn't even slow down the blower! Just made a sound......well a sound like a toy truck going through a snowblower! Ku-Tonka .. Ku-Tonka ... Ku-Tonka Share this post Link to post Share on other sites
Scotsman 46 #10 Posted December 23, 2013 Ordered it from napa 20$ Thanks Garry Share this post Link to post Share on other sites
Scotsman 46 #11 Posted December 28, 2013 Does anyone know where I can get a bearing for a 42 inch snowblower ? Share this post Link to post Share on other sites
dbartlett1958 96 #12 Posted December 28, 2013 Scotsman, Check out this thread from Bob Maynard. It may help! Share this post Link to post Share on other sites
Scotsman 46 #13 Posted December 29, 2013 I don't have those things to make it I saw one on e ebay for 55$ Share this post Link to post Share on other sites
Hydro 130 #14 Posted December 29, 2013 Check this out http://www.youtube.com/watch?v=JJwkDR8_Ybc He sells a pair of bearings, not original equipment for something like $56-57.00. I paid more than that for one original bearing. I don't know anything about the quality. Share this post Link to post Share on other sites
Scotsman 46 #15 Posted December 29, 2013 Looks good.I'll check it out thanks Share this post Link to post Share on other sites
