NOTE: This topic has a wiki article associated with it. You may view it here.
OP
@stickyfrog avatar
UTC

Moderatus Rana
MP3 250 and 2 MP3 500s
Joined: UTC
Posts: 22627
Location: Nashville, Indiana
 
Moderatus Rana
@stickyfrog avatar
MP3 250 and 2 MP3 500s
Joined: UTC
Posts: 22627
Location: Nashville, Indiana
UTC quote
Created article Marc Parnes Wheel Balance Video Demonstration

Was really cool to see it in action. Those bearings are very sensitive.
UTC

 
UTC
This post was not quite
What we were hoping to see
Try again, perhaps?
UTC

 
UTC
This post was not quite
What we were hoping to see
Try again, perhaps?
UTC

 
UTC
This post was not quite
What we were hoping to see
Try again, perhaps?
⬆️    About 3 years elapsed    ⬇️
@adri avatar
UTC

Atypical Canadian
2009 Vespa S50(LX150 motor swap), 2006 Vespa GTS250ie
Joined: UTC
Posts: 2199
Location: Toronto, Canada
 
Atypical Canadian
@adri avatar
2009 Vespa S50(LX150 motor swap), 2006 Vespa GTS250ie
Joined: UTC
Posts: 2199
Location: Toronto, Canada
UTC quote
Is there.... something missing?

Every static tire balancer I look at has adjustable feet in each corner, and either has a built-in bubble or comes with a level, so you can make sure the balancer is totally level before you get started, otherwise you would get a false reading.

This just looks like two random cement blocks arbitrarily placed just anywhere on the floor?

My understanding is that if the axle isn't level, your balance is off, so balancing the tire will be off. Is this not correct?
@jimc avatar
UTC

Moderaptor
The Hornet (GT200, aka Love Bug) and 'Dimples' - a GTS 300
Joined: UTC
Posts: 43197
Location: Pleasant Hill, CA
 
Moderaptor
@jimc avatar
The Hornet (GT200, aka Love Bug) and 'Dimples' - a GTS 300
Joined: UTC
Posts: 43197
Location: Pleasant Hill, CA
UTC quote
adri wrote:
Is there.... something missing?

Every static tire balancer I look at has adjustable feet in each corner, and either has a built-in bubble or comes with a level, so you can make sure the balancer is totally level before you get started, otherwise you would get a false reading.

This just looks like two random cement blocks arbitrarily placed just anywhere on the floor?

My understanding is that if the axle isn't level, your balance is off, so balancing the tire will be off. Is this not correct?
Actually it's not that important - a few degrees will make little difference to a static balancer like the Marc Parnes. The quality of the bearings is far more important.
⬆️    About 2 months elapsed    ⬇️
@vintagescooterdude avatar
UTC

Hooked
2006 GT200 2009 Genuine Stella
Joined: UTC
Posts: 279
Location: Chandler, AZ
 
Hooked
@vintagescooterdude avatar
2006 GT200 2009 Genuine Stella
Joined: UTC
Posts: 279
Location: Chandler, AZ
UTC quote
I have balanced hundreds of motorcycle tires, by using a couple of jackstands and the axle. Basically the same idea as this. Some took longer than others, but I got them all balanced. I just got one of these balancers and tried to balance a new rear tire (Michelin City Grip 2) on my GT200. I've been at it for 3 days now, and still cannot get it balanced. I laid the balancer across the same jackstands I've used for decades to balance motorcycle tires. I quickly found the light spot and marked it. I'm using 1/4 ounce stick on weights. So far just attaching them with masking tape. I got up to 4 of them (1 ounce) opposite the light spot, which moved the light spot about 45 degrees from where it was. I added 1 more 180 degrees from the light spot for a total of 1 1/4 ounces. That turned the light spot into the heavy spot. I tried putting weights in different spots instead of all in one spot opposite the original light spot. No matter what I do, or where I put weights, the tire/wheel always rotates until the same spot is on top, until I change the location of the weights. Then the light spot changes, but always comes back to the top. I have spent hours and hours trying to get it where I can put it in any spot and it will stay there. It's just not happening. I'[m wondering if it's just because the tire/wheel is just so much smaller in diameter than a motorcycle tire/wheel, or because there is less friction in this balancer than there was in the motorcycle wheel bearings. If it were the front wheel, I'd just put it on and see what happened. But I hate to do all the work required to install the rear wheel, only to have to take it off again.
NOTE: This topic has a wiki article associated with it. You may view it here.
DoubleGood Design banner

Modern Vespa is the premier site for modern Vespa and Piaggio scooters. Vespa GTS300, GTS250, GTV, GT200, LX150, LXS, ET4, ET2, MP3, Fuoco, Elettrica and more.

Buy Me A Coffee
 

Shop on Amazon with Modern Vespa

Modern Vespa is a participant in the Amazon Services LLC Associates Program, an affiliate advertising program designed to provide a means for sites to earn advertising fees by advertising and linking to amazon.com


All Content Copyright 2005-2024 by Modern Vespa.
All Rights Reserved.


[ Time: 0.0280s ][ Queries: 3 (0.0031s) ][ Debug on ][ 309 ][ Thing One ]