rmaynard 15,929 #1 Posted February 11, 2022 Found this in a box of new old stock parts, most of which are for the old geared mowers. But this looks like a crankshaft timing gear. It was in a plastic bag marked 8941. Take a look. Any idea? Bronze material. Notice the timing dot at the top. Reverse side Inside diameter 1" Thickness 1-1/8 Diameter 2-15/64 Keyway 1/4" Share this post Link to post Share on other sites
Maxwell-8 4,366 #2 Posted February 11, 2022 (edited) special gear design, looks like a screw type gear (can only be driven by the right gear, spinning the left gears is not possible) I know Bolens used them in their transmissions, impossible to move them by pushing, but turn easy at the driveshaft. Edited February 11, 2022 by Maxwell-8 4 1 Share this post Link to post Share on other sites
ranger 1,782 #3 Posted February 11, 2022 (edited) That looks like a pinion for use with a ‘worm’ wheel? @Maxwell-8 you beat me to it. Edited February 11, 2022 by ranger 2 Share this post Link to post Share on other sites
ranger 1,782 #4 Posted February 11, 2022 I think some pedestrian garden tillers used them in the final drive to the blades? 1 Share this post Link to post Share on other sites
Snoopy11 5,717 #5 Posted February 11, 2022 1 minute ago, ranger said: garden tillers used them in the final drive to the blades Yes, I have seen that gear used before for that purpose. Don Share this post Link to post Share on other sites
gwest_ca-(File Mod) 11,252 #6 Posted February 11, 2022 Item 12 https://www.partstree.com/models/4-2655-toro-trailblazer-5-snow-thrower-1973/parts-list-7487-gear-box-rotor-drive-0/ 2 2 1 Share this post Link to post Share on other sites
rmaynard 15,929 #7 Posted February 11, 2022 40 minutes ago, gwest_ca said: Item 12 https://www.partstree.com/models/4-2655-toro-trailblazer-5-snow-thrower-1973/parts-list-7487-gear-box-rotor-drive-0/ Ding Ding Ding Ding...Garry wins the prize. Well, no actual prize, but good find. 1 Share this post Link to post Share on other sites
gwest_ca-(File Mod) 11,252 #8 Posted February 11, 2022 MW-8941 shows up in the parts lists for these models 4-2632, 626 Snowthrower, 1968 4-2633, Trailblazer 7, 1969 4-2634, Trailblazer 5, 1969 4-2634, Trailblazer 5, 1970 4-2634, Trailblazer 5, 1971 4-2635, Trailblazer 5, 1969 4-2635, Trailblazer 5, 1970 4-2635, Trailblazer 5, 1971 4-2635, Trailblazer 5, 1972 4-2652, Trailblazer 7, 1973 4-2655, Trailblazer 5, 1973 Some MW-xxxx part numbers are still valid and available from Toro. Suspect Motor Wheel Corporation is the source of the MW- 1 Share this post Link to post Share on other sites
rmaynard 15,929 #9 Posted February 11, 2022 Well, if anyone needs one, you know where to get one. 1 Share this post Link to post Share on other sites
