Tue May 25, 2021 4:59 am

Enthusiast
1964 VBB
Joined: 08 Jan 2019
Posts: 84
Location: South Orange, NJ
 
Enthusiast
1964 VBB
Joined: 08 Jan 2019
Posts: 84
Location: South Orange, NJ
Tue May 25, 2021 4:59 am linkquote
Hey all,

Some of you I've been in touch with throughout the rebuild of my '64 VBB. I'm finally at a point where the front fork is ready to be installed.

I've fed both the speedo and front brake cables through the fork, my question has to do with the speedo cable where it connects at the bottom to the axle/worm gear. Is the cable supposed to actually insert into the end of the worm gear? I can't seem to push it in, and don't want to force it. Not sure if once the screw connection is tightened it simply holds the cable against the gear and turns from the pressure.

Second question: I've got all the other cables fed through the chassis, but am unsure how the gear cable should be attached to the selector box. (facing the rear of the scooter) the left connection would down shift and the right connection would upshift, yes? If so, which cable, at the headset, goes where? I don't have the headset installed yet, so I'm not sure where in the shift handle the cables should go.
Thanks for staying with my ramble.
Tue May 25, 2021 5:41 am

Not So Moderator
VNB VSC VBC VSX*2
Joined: 28 May 2008
Posts: 5217
Location: Hustletown, TX
 
Not So Moderator
VNB VSC VBC VSX*2
Joined: 28 May 2008
Posts: 5217
Location: Hustletown, TX
Tue May 25, 2021 5:41 am linkquote
The cable is "male" and drops into the speedo drive "female" which is held in place by the downward pressure of the top cap and and bits of the speedo cable.

See image for gear change 411...



Tue May 25, 2021 5:56 am

Enthusiast
1964 VBB
Joined: 08 Jan 2019
Posts: 84
Location: South Orange, NJ
 
Enthusiast
1964 VBB
Joined: 08 Jan 2019
Posts: 84
Location: South Orange, NJ
Tue May 25, 2021 5:56 am linkquote
Birdsnest wrote:
The cable is "male" and drops into the speedo drive "female" which is held in place by the downward pressure of the top cap and and bits of the speedo cable.

See image for gear change 411...
Awesome!

Thanks for the clarity
Tue May 25, 2021 6:17 am

Style Maven
'74 50s x3 '78 P200 E '84 Cosa '91 PK50XL2 '58 AllState '68 Sprint '80 50special and a '66(?) Super125
Joined: 22 Nov 2010
Posts: 8296
Location: seattle/athens
 
Style Maven
'74 50s x3 '78 P200 E '84 Cosa '91 PK50XL2 '58 AllState '68 Sprint '80 50special and a '66(?) Super125
Joined: 22 Nov 2010
Posts: 8296
Location: seattle/athens
Tue May 25, 2021 6:17 am linkquote
Quote:
Is the cable supposed to actually insert into the end of the worm gear? I can't seem to push it in, and don't want to force it.
You might have the newer larger diameter speedo cable and the older smaller plastic speedo drive gear below with a smaller square hole. It's easy to undo the nut and pull it out, with your front wheel off the ground so you can gently turn backwards to get the drive gear out. Now you can check the fit and clean things up so cable goes in easy when it's installed. Does the cable fit the speedo itself OK? If so, should fit below unless something's been changed.

Your paint job looks great! Who did it?
Tue May 25, 2021 7:04 am

Enthusiast
1964 VBB
Joined: 08 Jan 2019
Posts: 84
Location: South Orange, NJ
 
Enthusiast
1964 VBB
Joined: 08 Jan 2019
Posts: 84
Location: South Orange, NJ
Tue May 25, 2021 7:04 am linkquote
V oodoo wrote:
You might have the newer larger diameter speedo cable and the older smaller plastic speedo drive gear below with a smaller square hole. It's easy to undo the nut and pull it out, with your front wheel off the ground so you can gently turn backwards to get the drive gear out. Now you can check the fit and clean things up so cable goes in easy when it's installed. Does the cable fit the speedo itself OK? If so, should fit below unless something's been changed.

Your paint job looks great! Who did it?
Thanks. I've attached some of the pics. you can see the end of the speedo cable, with the brass ferrule as well as directly into the worm gear. I think it is simply held tight against the gear with the pressure from the screw fastener.

Paint was done by a guy in Allentown, PA. I based it on a design I had seen online from another custom vespa done in black and white.









Tue May 25, 2021 7:31 am

Style Maven
'74 50s x3 '78 P200 E '84 Cosa '91 PK50XL2 '58 AllState '68 Sprint '80 50special and a '66(?) Super125
Joined: 22 Nov 2010
Posts: 8296
Location: seattle/athens
 
Style Maven
'74 50s x3 '78 P200 E '84 Cosa '91 PK50XL2 '58 AllState '68 Sprint '80 50special and a '66(?) Super125
Joined: 22 Nov 2010
Posts: 8296
Location: seattle/athens
Tue May 25, 2021 7:31 am linkquote
Quote:
you can see the end of the speedo cable, with the brass ferrule as well as directly into the worm gear. I think it is simply held tight against the gear with the pressure from the screw fastener.
Nope, can't see the end of the speedo cable INNER with a square tip, nor can I see the square hole in the drive gear to see the size, it's dark in there! And you need to slide the rubber booty, knurled aluminum nut AND THAT SPLIT BRASS FERRULE up the cable outer a ways so you can push the outer all the way in. The brass ferrule is stopping you now. When you have the cable properly in place, then push the ferrule down snug and then the knurled nut will tighten it and trap the outer in place. It's not pressure that drives it, it's a square boy thing in a square girl thing, not friction,just like Birdsnest said!

And yeah, your paint is well done and up close too!
Tue May 25, 2021 7:39 am

Style Maven
'74 50s x3 '78 P200 E '84 Cosa '91 PK50XL2 '58 AllState '68 Sprint '80 50special and a '66(?) Super125
Joined: 22 Nov 2010
Posts: 8296
Location: seattle/athens
 
Style Maven
'74 50s x3 '78 P200 E '84 Cosa '91 PK50XL2 '58 AllState '68 Sprint '80 50special and a '66(?) Super125
Joined: 22 Nov 2010
Posts: 8296
Location: seattle/athens
Tue May 25, 2021 7:39 am linkquote
And what's going on w/ your motor? I see a fancy flywheel and SIP boxes all over the place.

Floor rails and leggy trim was a fun job, right?
You can should will be riding soon, right... ?

Tue May 25, 2021 7:45 am

Enthusiast
1964 VBB
Joined: 08 Jan 2019
Posts: 84
Location: South Orange, NJ
 
Enthusiast
1964 VBB
Joined: 08 Jan 2019
Posts: 84
Location: South Orange, NJ
Tue May 25, 2021 7:45 am linkquote
V oodoo wrote:
And what's going on w/ your motor? I see a fancy flywheel and SIP boxes all over the place.

Floor rails and leggy trim was a fun job, right?
You can should will be riding soon, right... ?


Yeah, I decided to upgrade to 12v electronic ignition kit. Floor rails were a challenge. Since it was the first time I've done it, I borrowed the SIP rivet press tool from a friend, and the first outer rail I did was a bit wonky, but overall, I'm happy with it
Tue May 25, 2021 3:48 pm

Hooked
1960 Allstate VNA, 1962 VNB
Joined: 19 May 2014
Posts: 174
Location: Cambria, CA
 
Hooked
1960 Allstate VNA, 1962 VNB
Joined: 19 May 2014
Posts: 174
Location: Cambria, CA
Tue May 25, 2021 3:48 pm linkquote
Stollerscoot.
I dig your paint job. Looks way better than my 6+ year old primer.

My VNB rode like crap after working on it one time. Such a dog taking off in 1st and then revs like cracy in second . Turns out I installed the shift cables backwards.


mini shop.

Tue May 25, 2021 4:59 pm

Enthusiast
1964 VBB
Joined: 08 Jan 2019
Posts: 84
Location: South Orange, NJ
 
Enthusiast
1964 VBB
Joined: 08 Jan 2019
Posts: 84
Location: South Orange, NJ
Tue May 25, 2021 4:59 pm linkquote
FNG wrote:
Stollerscoot.
I dig your paint job. Looks way better than my 6+ year old primer.

My VNB rode like crap after working on it one time. Such a dog taking off in 1st and then revs like cracy in second . Turns out I installed the shift cables backwards.
Thanks FNG! I also have a sidecar in the same paint scheme, but I wanted to make sure this got up and running before I focused on that. These folks on Modern Vespa are really like a brother/sisterhood and will do anything to help fellow Vespa lovers. I even had a face time call with someone when I was confused about calculating the TDC of the piston. Thanks to this forum, I've threaded my gear cables properly!



Tue May 25, 2021 6:06 pm

Addicted
86 T5, 63 GL
Joined: 30 Oct 2014
Posts: 683
Location: Oak Brook, Illinois
 
Addicted
86 T5, 63 GL
Joined: 30 Oct 2014
Posts: 683
Location: Oak Brook, Illinois
Tue May 25, 2021 6:06 pm linkquote
I had the same problem with my GL a few weeks back, I got a hold of an original speedo that used the 2.0 mm speedo cable, I ordered the cable, but then I had to swap out the speedo gear.
Order a 2.5 speedo gear (with the same number of splines and you'll be all set.
Tue May 25, 2021 7:18 pm

Enthusiast
1964 VBB
Joined: 08 Jan 2019
Posts: 84
Location: South Orange, NJ
 
Enthusiast
1964 VBB
Joined: 08 Jan 2019
Posts: 84
Location: South Orange, NJ
Tue May 25, 2021 7:18 pm linkquote
Vpfalcon wrote:
I had the same problem with my GL a few weeks back, I got a hold of an original speedo that used the 2.0 mm speedo cable, I ordered the cable, but then I had to swap out the speedo gear.
Order a 2.5 speedo gear (with the same number of splines and you'll be all set.
Yeah VP, I spoke with my friends at Scooter Mercato and they are replacing my speedo cable for the smaller one so it fits in the worm gear and the actual speedometer (the original from '64)
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