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Recent pages Gear box Cases Cables Lathe Dry Lake Racer All pagesMain pages Vespa Labs Vespa 101 Engine Autolube Carburettor Gear box Piston Speed Reading the Spark P... Spark Plug

Edit page New page Print page More Page last modified 09:41, 12 Jul 2011 by internetscooter 6 Page Notifications Off Vespa Labs > Vespa 101 > Engine > Gear box Gear box From $1 Table of contents 1. Basics of how the Vespa gearbox works Basics of how the Vespa gearbox works The crank (1) is driven by the piston, this is directly connected to the clutch (2) The clutch (2) can connect and disconnect the crank force to a cog that drives the primary gear (3). When the clutch lever is pulled in by the rider, the clutch plates are lifted and the clutch spins freely without driving the primary gear. When the clutch lever is released by the rider, the clutch springs return the clutch plates pressure to driving the primary gear. The primary gear is part of a christmas tree of gears (4) which all spin as a solid mass. Another set of individual gears (5) mesh into the christmas tree and these ride freely on the output shaft (6). Within this shaft is a cruciform which slides up and down between the individiual gears when the rider changes gear. The cruciform locks into a single gear cog and to the output shaft together. So a gear ratio is obtained by a part of the christmas tree driving an individual output gear.   Below is a video from iowancamera on youtube Tags: (Edit tags) No tags Attach file or image Files (6) File Size Date Attached by     gearbox.JPG No description 159.34 kB 16:43, 20 Jun 2009 internetscooter Actions Attach new version Edit description Move/rename Delete PICT0718 (Large).JPG No description 142.4 kB 16:37, 20 Jun 2009 internetscooter Actions Attach new version Edit description Move/rename Delete PICT0724 (Large).JPG No description 112.22 kB 16:36, 20 Jun 2009 internetscooter Actions Attach new version Edit description Move/rename Delete PICT0725 (Large).JPG No description 81.79 kB 16:37, 20 Jun 2009 internetscooter Actions Attach new version Edit description Move/rename Delete PICT0726 (Large).JPG No description 75.38 kB 16:37, 20 Jun 2009 internetscooter Actions Attach new version Edit description Move/rename Delete PICT0727 (Large).JPG No description 99.29 kB 16:36, 20 Jun 2009 internetscooter Actions Attach new version Edit description Move/rename Delete Images 6 gearbox.JPG PICT0718 (Large).JPG PICT0724 (Large).JPG PICT0725 (Large).JPG PICT0726 (Large).JPG PICT0727 (Large).JPG Comments (0) You must login to post a comment.

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