The member photo gallery is now integrated and live!!  All user albums and pictures have been ported from old gallery.


To register send an e-mail to admin@bmwr65.org and provide your location and desired user name.

Author Topic: Wheel balance  (Read 1500 times)

Offline georgesgiralt

  • Mt. Olympus Resident
  • ****
  • Posts: 1388
  • I Love YaBB 2!
Wheel balance
« on: August 21, 2016, 05:07:38 AM »
Hello Guys,
I had been offered this wheel balancer stand : https://www.louis.de/en/artikel/rothewald-wheel-balancer-for-motorcycle-tyres-inclusive-axle/10009184?list=187899321&filter_article_number=10009184 because it was in sale.
I mount my tires myself. I used a pocket wheel balancer until now (two little plates fitted with two roller bearing each, the whole suspended from the ceiling) and I used the wheel axle with a tube as a spacer to suspend the wheel.
The nut at the end of the axle was torqued near the correct value in order to avoid any roller play and or wobble.
Now, I'm at lost. Because the wheel axle are too short to be used with this device.
If I use the two black threaded fixtures, I distort the whole contraption before reaching near the proper torque.  And keeping the wheel centered is a challenge.
If I use the  upper axle with the two conical support, I can't apply any pressure on the  bearings so I'm left with some play  into them.
What would you do if you had this device ? I'm puzzled...
Thanks for your advice.

Offline Barry

  • Mt. Olympus Resident
  • ****
  • Posts: 5143
Re: Wheel balance
« Reply #1 on: August 21, 2016, 06:27:39 AM »
Georges,  

It usual to use the two conical supports centred in the bearings with only light hand pressure but then most wheel bearings are not spaced taper rollers like ours and will not need torquing up to remove all play.

If you need to use full torque to remove all play it might be your wedding band spacer too thick ?   You could always remove it for the purpose of wheel balancing and put it back afterwards.

Barry Cheshire, England 79 R45

Offline mrclubike

  • Mt. Olympus Resident
  • ****
  • Posts: 1437
  • Jungheinrich Master Tech
Re: Wheel balance
« Reply #2 on: August 21, 2016, 08:20:30 AM »
That is a very nice looking stand
You cant use the tapered cones unless you remove the top hat spacer.
If you are doing a bearing service at the time you change the tire Its not a big deal  
This is what i use
No disassembly required
This is Special made just for the axle diameter
http://www.marcparnes.com/BMW_Motorcycle_Wheel_Balancer.htm#BM17
« Last Edit: August 21, 2016, 08:24:24 AM by Mrclubike »
1982 R65 running tubeless Snowflakes
2004 R1150R

Offline georgesgiralt

  • Mt. Olympus Resident
  • ****
  • Posts: 1388
  • I Love YaBB 2!
Re: Wheel balance
« Reply #3 on: August 21, 2016, 08:34:26 AM »
Yes, I've seen the Marc Parnes contraption, but they have two "problems" for me :
the locking screws are prone to make some unbalance  
the ends are in ball bearings  I already own.

Given the above advices, I'll remove the gasket and top hat spacers, or have an axle turned  and tapped to be able to put the bearings  under proper stress before balancing the wheel.

Offline Tony Smith

  • Mt. Olympus Resident
  • ****
  • Posts: 2331
  • Graduate, Wallace and Gromit School of Engineering
Re: Wheel balance
« Reply #4 on: August 21, 2016, 05:17:28 PM »

Wheel balancing.

I have never been a great believer in the various potions that can be put into tyres and tubes to hopefully seal punctures before all of the air escapes.


But such fluids do have a very interesting property - they dynamically balance the wheel.

I buy a bottle of [insert favorite magic potion tyre sealant here] sufficient to treat 4 car tyres and put half of the bottle into the front and half into the back wheel.

Viola! balanced wheels, and just maybe it might save me a puncture one day. The reason I use so much fluid is to provide the weight needed to balance the wheel.

Oh, and if following this idea, make sure your  [insert favorite magic potion tyre sealant here] is water based - it helps with the cleanup and I suspect would be mandatory for tubeless tyres.
1978 R100RS| 1981 R100RS (JPS) | 1984 R65 | 1992 KLE500 | 2002 R1150GSA |

Offline wilcom

  • Mt. Olympus Resident
  • ****
  • Posts: 1500
Re: Wheel balance
« Reply #5 on: August 21, 2016, 07:39:48 PM »
Quote
But such fluids do have a very interesting property - they dynamically balance the wheel.

I stay in the closet on this issue because I am the only one this works for but I will open the door for just a second................ I have used "balancing beads" of one kind or another for years. The "Tire goop" would do the same thing if it would stay fluid and give the secondary benefit of sealing a puncture maybe.

The big question,  is it still fluid and pliable to move around in a tire or is it formed into a solid un-moving coat inside the tire after a year or so?   If it won't move it won't balance.
Joe Wilkerson
Telephone man with a splash of Data
Menifee, CA

Present:
1984 BMW R65LS "Herr Head"
past:
1982 BMW R65LS
1979 R65
1980 R65
1982 R80RT
1974 R90/6
1972 R75
1964 R50/2
19xx R27
ZX-11

Offline Bob_Roller

  • Global Moderator
  • Mt. Olympus Resident
  • *****
  • Posts: 9121
  • -7 hours GMT
Re: Wheel balance
« Reply #6 on: August 21, 2016, 07:52:00 PM »
I was kind of curious how long the tire sealant would stay in a liquid state .

My bikes don't get as much use as they used to, so it's 7-8 years between tire changes on the R65's and Guzzi .

With temps here averaging 105 F for 6 months of the year, and tire temps in the 195 F, 95 C area during our ' hot ' season, I've been hesitant to use a liquid sealant in my tires .
« Last Edit: August 21, 2016, 07:53:32 PM by Bob_Roller »
'81 R65
'82 R65 LS
'84 R65 LS
'87 Moto Guzzi V65 Lario
'02 R1150R
Riding all year long since 1993 .
I'll give up my R65, when they pry my cold dead hands from the handlebars !!!!!

Offline Tony Smith

  • Mt. Olympus Resident
  • ****
  • Posts: 2331
  • Graduate, Wallace and Gromit School of Engineering
Re: Wheel balance
« Reply #7 on: August 21, 2016, 09:02:39 PM »
Quote
I was kind of curious how long the tire sealant would stay in a liquid state .


The tyres I recently pulled off the wife's bike had been there since 2005, the tyre goop in the tubes was still liquid, however I threw them away as I felt expecting further service was pushing th boundaries a little too far.
1978 R100RS| 1981 R100RS (JPS) | 1984 R65 | 1992 KLE500 | 2002 R1150GSA |

Offline mrclubike

  • Mt. Olympus Resident
  • ****
  • Posts: 1437
  • Jungheinrich Master Tech
Re: Wheel balance
« Reply #8 on: August 21, 2016, 09:10:32 PM »
Quote

the locking screws are prone to make some unbalance  
t
I  just locate them 180 deg apart
1982 R65 running tubeless Snowflakes
2004 R1150R

Offline Billmc

  • Lives in Foothills of Mt. Olympus
  • **
  • Posts: 136
  • Still Crazy After All These Years....
Re: Wheel balance
« Reply #9 on: August 29, 2016, 09:35:26 AM »
Put new Michelin Pilot Activ tires on a few weeks ago a the Metzelers were 20 years old and a trustworthy and lifelong experienced rider friend suggested I try DynaBeads balancing. He had it done to his '99 Harley Sportster and '69 BSA Rocket III and he swore by the process so I had them balanced with the DynaBeads.  
Broke them in for a few dozen miles then did a 600 mile road trip over that weekend. No Problems! No bouncing, wobble, shimmy, skitter or anything to indicate the tires were out of balance.  Never balanced tires that way before but I'm a happy camper and there is nothing on the outside to distract from the beauty of those wheels!
1987 R65 Silver