Fri Sep 09, 2022 9:31 pm

Enthusiast
VNA1
Joined: 02 Jul 2022
Posts: 77
Location: Australia
 
Enthusiast
VNA1
Joined: 02 Jul 2022
Posts: 77
Location: Australia
Fri Sep 09, 2022 9:31 pm linkquote
Wait. That's not a vna case in your pic . I've got those skinny inserts on my vlb case
Sat Sep 10, 2022 4:16 am

Molto Verboso
Joined: 03 Nov 2011
Posts: 1556
Location: Racing Capital of the World
 
Molto Verboso
Joined: 03 Nov 2011
Posts: 1556
Location: Racing Capital of the World
Sat Sep 10, 2022 4:16 am linkquote
Aircobra wrote:
That must it , thank you
Who sells them and how do u put it in.
It must have 2mm thickness. So 68-4=64.
I am still 2mm short ?
I have never seen them for sale at any parts retailer. It is a task for a machine shop.
Sat Sep 10, 2022 6:13 am

Ossessionato
2007 Stella 225
Joined: 02 Nov 2019
Posts: 3047
Location: Rochester, Minnesota
 
Ossessionato
2007 Stella 225
Joined: 02 Nov 2019
Posts: 3047
Location: Rochester, Minnesota
Sat Sep 10, 2022 6:13 am linkquote
I think your missing this, according to my service manual. I bet it came out with crankshaft bearing, part number 80992

https://www.scooterwest.com/brass-bushing-for-crank-bearing.html
Sat Sep 10, 2022 8:23 pm

Enthusiast
VNA1
Joined: 02 Jul 2022
Posts: 77
Location: Australia
 
Enthusiast
VNA1
Joined: 02 Jul 2022
Posts: 77
Location: Australia
Sat Sep 10, 2022 8:23 pm linkquote
There is the gap. Something like 3.5 to 4 on each side



Sun Sep 11, 2022 12:14 am

Enthusiast
VNA1
Joined: 02 Jul 2022
Posts: 77
Location: Australia
 
Enthusiast
VNA1
Joined: 02 Jul 2022
Posts: 77
Location: Australia
Sun Sep 11, 2022 12:14 am linkquote
is the centre stand meant to be painted body color?did vna have the aluminum brackets for the stand?
Sun Sep 11, 2022 5:03 am

Molto Verboso
1958 Allstate 177VMC, 2005 70cc Yamaha Vino
Joined: 23 Aug 2020
Posts: 1098
Location: Philadelphia
 
Molto Verboso
1958 Allstate 177VMC, 2005 70cc Yamaha Vino
Joined: 23 Aug 2020
Posts: 1098
Location: Philadelphia
Sun Sep 11, 2022 5:03 am linkquote
Aircobra wrote:
is the centre stand meant to be painted body color?did vna have the aluminum brackets for the stand?
No and no. They had these brackets


VNA center stand brackets

Sun Sep 11, 2022 7:36 am

Molto Verboso
Joined: 03 Nov 2011
Posts: 1556
Location: Racing Capital of the World
 
Molto Verboso
Joined: 03 Nov 2011
Posts: 1556
Location: Racing Capital of the World
Sun Sep 11, 2022 7:36 am linkquote
FridayMatinee wrote:
No and no. They had these brackets
They came in two versions, stamped metal and casted aluminum.
Sun Sep 11, 2022 3:31 pm

Molto Verboso
1958 Allstate 177VMC, 2005 70cc Yamaha Vino
Joined: 23 Aug 2020
Posts: 1098
Location: Philadelphia
 
Molto Verboso
1958 Allstate 177VMC, 2005 70cc Yamaha Vino
Joined: 23 Aug 2020
Posts: 1098
Location: Philadelphia
Sun Sep 11, 2022 3:31 pm linkquote
GickSpeed wrote:
They came in two versions, stamped metal and casted aluminum.
Interesting. I've only seen the stamped ones on VNA's and the cast aluminum on the VBB's. Learn something new everyday!

Or maybe it's the Allstate way of cheating out again. When Vespa switch to the cast ones did they just use the rest of the stamped ones on the Allstate's
Sat Sep 17, 2022 1:02 am

Enthusiast
VNA1
Joined: 02 Jul 2022
Posts: 77
Location: Australia
 
Enthusiast
VNA1
Joined: 02 Jul 2022
Posts: 77
Location: Australia
Sat Sep 17, 2022 1:02 am linkquote
Ok ,looks the the case is wrecked. It's supposed to be 65 mil Max hole so that I can fit the scooterwest insert .
So I think I'll just put the 3 sped g.box into the vlb and Bob is my uncle
Sat Sep 17, 2022 1:08 am

Enthusiast
VNA1
Joined: 02 Jul 2022
Posts: 77
Location: Australia
 
Enthusiast
VNA1
Joined: 02 Jul 2022
Posts: 77
Location: Australia
Sat Sep 17, 2022 1:08 am linkquote
I Ve watched at least 5 variations of case closes
1: sip one where both bearings are inserted first, then the cranktool is used
2.the scooterwest one where the clutch side bearing goes in. The other one is pushed omyo the crankshaft with a jig and then the case is pushed in
3. Indo garasi, same as #1, but the car see es are smashed together with a black of wood

Any suggestions ?
Sat Sep 17, 2022 7:15 pm

Ossessionato
2007 Stella 225
Joined: 02 Nov 2019
Posts: 3047
Location: Rochester, Minnesota
 
Ossessionato
2007 Stella 225
Joined: 02 Nov 2019
Posts: 3047
Location: Rochester, Minnesota
Sat Sep 17, 2022 7:15 pm linkquote
Aircobra wrote:
Ok ,looks the the case is wrecked. It's supposed to be 65 mil Max hole so that I can fit the scooterwest insert .
So I think I'll just put the 3 sped g.box into the vlb and Bob is my uncle
Know anyone with lathe? They could turn you a larger insert. Or make a second insert to add to current. Wouldn't think it would take an experienced machinist long to turn that.
Thu Sep 22, 2022 7:51 pm

Enthusiast
VNA1
Joined: 02 Jul 2022
Posts: 77
Location: Australia
 
Enthusiast
VNA1
Joined: 02 Jul 2022
Posts: 77
Location: Australia
Thu Sep 22, 2022 7:51 pm linkquote
Found an old guy who could do it but scooterwest tell me that the bushes then need to be line bored together. Anyone know?
Thu Sep 22, 2022 7:52 pm

Enthusiast
VNA1
Joined: 02 Jul 2022
Posts: 77
Location: Australia
 
Enthusiast
VNA1
Joined: 02 Jul 2022
Posts: 77
Location: Australia
Thu Sep 22, 2022 7:52 pm linkquote
Anyone for closing the case ❓
Thu Sep 22, 2022 8:26 pm

Hooked
Parmakit Primavera -74, Polini Primavera -68, Stock 150 Touring -59, VMC 177 Bajaj Chetak 125 -95
Joined: 22 Jun 2022
Posts: 388
Location: Finland
 
Hooked
Parmakit Primavera -74, Polini Primavera -68, Stock 150 Touring -59, VMC 177 Bajaj Chetak 125 -95
Joined: 22 Jun 2022
Posts: 388
Location: Finland
Thu Sep 22, 2022 8:26 pm linkquote
Line boring is more important on car cranks because of different style bearings. On our shiftys the crank is ball beared so it has some give. It will not be perfect just re-sleeved but I think it will be good enough to run.
Thu Sep 22, 2022 9:40 pm

Sergeant at Arms
Weird 80's Vespas & Cool Vintage Lambrettas
Joined: 21 Oct 2005
Posts: 11803
Location: The state of insanity, SoCal
 
Sergeant at Arms
Weird 80's Vespas & Cool Vintage Lambrettas
Joined: 21 Oct 2005
Posts: 11803
Location: The state of insanity, SoCal
Thu Sep 22, 2022 9:40 pm linkquote
I'm with yosh, get a set of bushings spun up knock them in and roll. it'll be close enough.

just be sure to use a retaining compound on them so they don't jump out of the case.
Fri Sep 23, 2022 12:16 am

Hooked
Parmakit Primavera -74, Polini Primavera -68, Stock 150 Touring -59, VMC 177 Bajaj Chetak 125 -95
Joined: 22 Jun 2022
Posts: 388
Location: Finland
 
Hooked
Parmakit Primavera -74, Polini Primavera -68, Stock 150 Touring -59, VMC 177 Bajaj Chetak 125 -95
Joined: 22 Jun 2022
Posts: 388
Location: Finland
Fri Sep 23, 2022 12:16 am linkquote
Be extra careful about the tolerances on the bushings. You want a just right snug fit with cases. Too loose and they will fall off, too tight and the bearing is a pain to get in.

To keep the bushing as intact as possible, heat the snot out of your case and drop in the bushing straight from the freezer. This way you don't likely have to hammer it at all.
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