Gearbox Help
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ScootsnBoots
Member
Gts250
Joined: 28 Jul 2018
Posts: 12
Location: Seattle
Fri May 08, 2020 8:16 am quote
Hello all!

So I went and cocked up, and removed all of the gears from my xmas tree before I realized they had spacing integrated into the gears. I didn't mark anything, and am now at a loss as to how to orient each gear. It's a 1975 125 t.s.

eng1.jpg

swa45
Molto Verboso
One or two fun scoots....nothing too precious
Joined: 17 Jul 2013
Posts: 1581
Location: UK (South East)
Fri May 08, 2020 9:32 am quote
Smallest one in first, lip up
Next one lip up
Next one lip up
Big one in last, lip down (bigger gap for neutral)

You'll probably see distinguishing marks on the underside of the small one (4th gear), and on the upper side of the big one (1st gear).These show that they were in contact with the rim of the driveshaft (small gear) and the top shim (big gear). The shim goes on top, followed by the circlip.
Ginch
Veni, Vidi, Posti
74 Super, 75 Super, PX project, LML off-roader and new to 2018, '66 Blue Badge Smallframe
Joined: 30 Nov 2011
Posts: 8053
Location: Victoria, Australia
Fri May 08, 2020 8:19 pm quote
Some pics here... http://modernvespa.com/forum/post1724844#1724844

You can check that you have it right by putting them up against the xmas tree and see that they line up.
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