Pang99

Hi!

I just got an set of old SunTour downtube shifters i plan to use on my road frame with downtube bosses.
But i dont know how to put the things together. And if the shifter set is complete. Anyone can have a look on the picture, and maybe can tell me in what order i shall mount the parts? Or if the set is complete?
Tnks!

jgwilliams

Wow, it's a while since I did one of these! And as soon as I hit reply the picture disappeared! But from memory the bits with the square keys go on first with the cable guide at the bottom and pointing down towards the crank. Then a washer, then the levers, then another washer, then the bit with the rectangular key and then the covers and screws. If one set of washers is thicker than the other then the thick ones go on the inside, I think. The purpose of the rectangular keyed part is that is won't shift as the levers are pushed back and forth, so the retaining screws don't come undone.

jgwilliams

Having a closer look at the picture I can see that the outer covers also key in to the back plates, further preventing the screws from coming undone. It looks like one or two of the washers are a spring design, so these would go against the back plate. If there's only one spring washer put it on the side for the rear derailleur.

John

wildjim

Here is a Campagnolo 1958 diagram which is similar. . .


https://www.bikeforums.net/attachment...id=19185&stc=1

Pang99

Splendid! Thnks a lot jgwilliams and wildjim! Now i got the picture thnks to your input, and the right shifter is already mounted and working!!