Donate!
Welcome, Guest. Please Login or Register :: View Members
Pages: 1
Send Topic Print
Cush bearings...? (Read 105 times)
AlexW
Junior Member
**
Offline

SuzukiSavage.com
Rocks!

Posts: 57
Durham, NC
Gender: male
Cush bearings...?
07/08/17 at 13:17:45
 
Hi all,

Just had my front tire changed at the local stealership (I know, I know, but the last one was all cracky and I was in a hurry to get it done).
Anyway.
After changing the tire and test-running the bike, the mechanic who worked on it said "the belt tension is very loose...this could have been a result of the cush drive bearings becoming worn out".

Now, the first thing to say is that according to the twist-test found on this site, the belt tension is actually, if anything, a tiny bit tight. It is definitely not "very loose" So I'm inclined to take anything they say with a full bag of salt. However, hearing that parts of my bike I've never even heard of might be work out warrants at least a check.

So, wise-folks of the forum, a couple of things:
1) Where is the cush drive bearing, anyway? It sounds like it's somewhere on the front pulley, but I don't have much clue.
2) How would I check to see if it's still in working order?
3) What's the likelihood that it is worn out (at about 10,500 miles, albeit with a rather large me riding on it the last 3,000)?
4) If it does need replacing, what kind of time, cost and difficulty am I looking at?
Back to top
 
 

2012 (orange) • Dyna muffler/Oldfeller air filter • 152.5/52.5, ~2/3 spacer removed • Raptor petcock; Progressive 12" shocks.
  IP Logged
justin_o_guy2
Serious Thumper
*****
Offline

What happened?

Posts: 55279
East Texas, 1/2 dallas/la.
Re: Cush bearings...?
Reply #1 - 07/08/17 at 13:25:16
 
I'm not feeling good, so, this is gonna be short.

I've been here twelve years
I've seen bikes with 150,000 + miles.
Never have I heard that.

Wait for answers
But describe the problem
Back to top
 
 

The people never give up their liberties but under some delusion.- Edmund Burke.
  IP Logged
AlexW
Junior Member
**
Offline

SuzukiSavage.com
Rocks!

Posts: 57
Durham, NC
Gender: male
Re: Cush bearings...?
Reply #2 - 07/08/17 at 13:33:11
 
JoG - I started with a Google of this forum and found basically nothing, which was the second thing (after being told that my slightly-too-tight belt was in fact massively too loose - yeah, way to get me to let you work on my baby again...) that made me start to think that this was a common case of mechanic's inexperience with our special little late-80s delight. But who knows?
Back to top
 
 

2012 (orange) • Dyna muffler/Oldfeller air filter • 152.5/52.5, ~2/3 spacer removed • Raptor petcock; Progressive 12" shocks.
  IP Logged
Armen
Serious Thumper
*****
Offline

Half-Witted
Wrench-Jockey from
Jersey

Posts: 1452

Re: Cush bearings...?
Reply #3 - 07/08/17 at 13:34:41
 
There are three bearings in the rear wheel assembly. Two in the hub, one in the rear pulley carrier. Remove the rear wheel, see how much play the pulley carrier has in the hub. The rubber bumpers can wear out.
Remove the pulley carrier. Take a look at the bearing. Usually, it is a bearing with a single dust shield/seal on the outboard side. Stick your finger in the bearing and try to turn it. Any play or crunchiness means it it toast.
Then do a similar look and fondle on the wheel bearings.
There have been a few posts about getting rid of play in the pulley carrier shock absorbers (bumpers).
I'm a fan of changing any single shielded bearings to 2RS ones (double rubber shield).
-Armen
Back to top
 
 

In theory, theory and reality are the same. In reality, they aren't...
  IP Logged
verslagen1
YaBB Moderator
ModSquad
*****
Offline

Where there's a
will, I want to be
in it.

Posts: 28889
L.A. California
Gender: male
Re: Cush bearings...?
Reply #4 - 07/08/17 at 13:37:58
 
1st, we like the belt loose so anything a stealership says that is a symptom of something... run away.

cush drive... yeah you got one, on the rear pulley hub in between the wheel.
grab the rear pulley, does it move alot? no then it's ok.
moves but what's alot? idk, but it's probably ok.
moves alot? might need a new hub bearing, might be ok with bots rubber damper tighterner.
Back to top
 
 
WWW   IP Logged
justin_o_guy2
Serious Thumper
*****
Offline

What happened?

Posts: 55279
East Texas, 1/2 dallas/la.
Re: Cush bearings...?
Reply #5 - 07/08/17 at 13:48:04
 
Newbie at the shop.
Instant BULLSHIT.
How much did they get for mounting the tire?
Back to top
 
 

The people never give up their liberties but under some delusion.- Edmund Burke.
  IP Logged
AlexW
Junior Member
**
Offline

SuzukiSavage.com
Rocks!

Posts: 57
Durham, NC
Gender: male
Re: Cush bearings...?
Reply #6 - 07/08/17 at 13:56:45
 
I can wobble the rear pulley maybe 2-3 degrees with respect to the rear wheel. It doesn't seem like "a lot" to me. Maybe that is a lot.
Doesn't *seem* like there's much to worry about right now. If nothing's going to fall off or snap immediately, I'll investigate the bearings next time it's not hellishly hot outside, but this in North Carolina and that won't be until mid-September.

justin - they got $35 for labor plus about $9 of things all billed as some variation on "miscellaneous crap". So, not terrible, but still money that I wouldn't be out if I were better a planning and checking my tires.
Back to top
 
 

2012 (orange) • Dyna muffler/Oldfeller air filter • 152.5/52.5, ~2/3 spacer removed • Raptor petcock; Progressive 12" shocks.
  IP Logged
norm92de
Serious Thumper
*****
Offline

SuzukiSavage.com
Rocks!

Posts: 1180
El Paso TX
Gender: male
Re: Cush bearings...?
Reply #7 - 07/08/17 at 14:13:26
 
I know what is too loose for the belt.

Yesterday I was playing around with the belt adjustment and found that if the belt is too loose it rubs on the rear bolt of the shift mechanism cover when turning the wheel backwards i.e. with the top run of the belt tight. The belt adjustment at this time was still a hard twist to get the proverbial 90* I readjusted the belt to be a very tough twist to get 90*.

I know that the bike was lifted but even so actually touching the bolt was not acceptable to me. :'(
Back to top
 
 

2014 S40. Raptor. idle mixture adj.Needle raised one notch. 4000' altitude. Stock jets. Shell Rotella synthetic.
  IP Logged
Serowbot
YaBB Moderator
ModSquad
*****
Offline

OK.... so what's the
speed of dark?

Posts: 28675
Tucson Az
Gender: male
Re: Cush bearings...?
Reply #8 - 07/08/17 at 14:48:58
 
Dealers usually tighten the belt way too tight...
Harley's have more pliable kevlar belts and they like to be tight,... our bikes use an industrial grade, plastic belt, they run better looser...
If it ain't slippin on the cogs, it ain't too loose... Grin
Back to top
 
 

Ludicrous Speed !... ... Huh...
  IP Logged
norm92de
Serious Thumper
*****
Offline

SuzukiSavage.com
Rocks!

Posts: 1180
El Paso TX
Gender: male
Re: Cush bearings...?
Reply #9 - 07/08/17 at 16:56:07
 
Suzuki apparently doesn't practice what it preaches.

I saw two examples of the S40 at a local dealership. Both of the belts were adjusted looser than the Suzuki gauge setting but tighter than the 90* twist.
Back to top
 
 

2014 S40. Raptor. idle mixture adj.Needle raised one notch. 4000' altitude. Stock jets. Shell Rotella synthetic.
  IP Logged
justin_o_guy2
Serious Thumper
*****
Offline

What happened?

Posts: 55279
East Texas, 1/2 dallas/la.
Re: Cush bearings...?
Reply #10 - 07/08/17 at 20:56:10
 
ustin - they got $35 for labor plus about $9 of things all billed as some variation on "miscellaneous crap". So, not terrible, but still money that I wouldn't be out if I were better a planning and checking

I pay at least that much if I haul the wheel in already off the bike..
Back to top
 
 

The people never give up their liberties but under some delusion.- Edmund Burke.
  IP Logged
gizzo
Serious Thumper
*****
Offline

SuzukiCabbage. It's
Savage.

Posts: 1318
Australia
Re: Cush bearings...?
Reply #11 - 07/09/17 at 03:18:53
 
that is a freakish amount of money to fit a  tyre.my tyre shop fits them free if you buy the tyre from them. dunno how tight Harley belts are but that is most likely the only belt information the tyre guy would possess. maybe educate them if they'll listen?
Back to top
 
 
  IP Logged
Dave
YaBB Moderator
ModSquad
*****
Offline

SuzukiSavage.com
Rocks!

Posts: 18101
Camp Springs, Kentucky
Gender: male
Re: Cush bearings...?
Reply #12 - 07/09/17 at 03:42:51
 
The amount of rotation of the cush drive isn't of much concern.....it doesn't seem to wear out.

The "play" that is of more concern is the "wobble".....try and move the pulley by grabbing the front and rear, and push/pull and see if you can get the pulley to wobble (not rotate).

If the pulley wobbles it is an indication the bearing is getting worn.  You can do the rubber floor mat modification and it helps......a bushing installed on the pulley hub is even better!

http://suzukisavage.com/cgi-bin/YaBB.pl?num=1446828836


The bushing modification can be done by anyone with a lathe, and you don't need the floor mat if you have the bushing.

http://suzukisavage.com/cgi-bin/YaBB.pl?num=1496178642
Back to top
 
 

Someday I will be old......But not today!

  IP Logged
AlexW
Junior Member
**
Offline

SuzukiSavage.com
Rocks!

Posts: 57
Durham, NC
Gender: male
Re: Cush bearings...?
Reply #13 - 07/09/17 at 06:00:49
 
The 2 degrees I described was "wobble" not spin, sorry if that wasn't clear.

Floor mat mod looks easy enough, not sure I know anyone with a lathe I could use to machine a bearing...

Does anything terrible happen if I don't sort it out immediately?
Back to top
 
 

2012 (orange) • Dyna muffler/Oldfeller air filter • 152.5/52.5, ~2/3 spacer removed • Raptor petcock; Progressive 12" shocks.
  IP Logged
justin_o_guy2
Serious Thumper
*****
Offline

What happened?

Posts: 55279
East Texas, 1/2 dallas/la.
Re: Cush bearings...?
Reply #14 - 07/09/17 at 06:15:01
 
Naah, it's more common than Suzuki would wanna admit.
Problems Because of it?
Pretty much nonexistent aside from the belt squeak.
Back to top
 
 

The people never give up their liberties but under some delusion.- Edmund Burke.
  IP Logged
Pages: 1
Send Topic Print


« Home

 
« Home
SuzukiSavage.com
10/02/24 at 09:32:17



General CategoryRubber Side Down! › Cush bearings...?


SuzukiSavage.com » Powered by YaBB 2.2!
YaBB © 2000-2007. All Rights Reserved.