BCM Community

Bus Discussion => Bus Topics ( click here for quick start! ) => Topic started by: ros on September 16, 2014, 08:19:09 PM

Title: 4905 shimmys/wanders
Post by: ros on September 16, 2014, 08:19:09 PM
Hello to all and any helpful person on this. I am looking to buy very soon a '79 4905 with 8v71 and vs 730.  The problem is as stated in the subject.  PLEASE HELP BEFORE I buy this beast.

Thanks

Ros
ros@netbox.com
Title: Re: 4905 shimmys/wanders
Post by: Jim Eh. on September 16, 2014, 08:42:17 PM
Without inspection: alignment, shocks, tie rod ends, drag link, wheel balance, wheel bearings ....
some or all of the above.
Title: Re: 4905 shimmys/wanders
Post by: shelled on September 16, 2014, 09:14:05 PM
2different things.

shimmy usually refers to problems with shocks, wheel balance or alignment which are (relatively) simple to fix.

wander usually means the alignment is way out of whack, the steering box is seriously worn, rubber bushings in steering/front suspension are trashed, wheel bearings are toast, drag link or other parts need replacing... etc.

if it's the steering box, you can there will usually be more than 3 inches of play in the steering wheel when the coach is at rest.

that's not a full list of all the problems I've encountered over the years.  You need to be prepared for an expensive education.

on the other hand, it might be as simple as a bent wheel rim or under-inflated tires.

edward
Title: Re: 4905 shimmys/wanders
Post by: seaton@mta on September 17, 2014, 05:23:23 AM
How many inches of play in the steering wheel?

- Seaton
Title: Re: 4905 shimmys/wanders
Post by: luvrbus on September 17, 2014, 06:15:19 AM
Could be just directional tires on the front you see that a lot now directional tires mounted wrong is that bus for sale in Parker AZ ?
Title: Re: 4905 shimmys/wanders
Post by: uturn on September 21, 2014, 05:11:14 PM
I have a 77 4905A. I don't have any problems with it wandering. I had a drag link replaced.  I only have about 3 or 4 inches of play in mine. Could be any thing I guess. Good luck. If you don't get that one, I have one I want to sell. I'm in Florida
Title: Re: 4905 shimmys/wanders
Post by: Utahclaimjumper on September 21, 2014, 05:20:10 PM
 You can remove a lot of it by adjusting the CASTER to 2 to 3 degree's POSITIVE,, try it you will love it.>>>Dan
Title: Re: 4905 shimmys/wanders
Post by: Len Silva on September 22, 2014, 02:45:58 PM
The rear suspension bushings (and shocks) are often overlooked and can contribute to handling problems.
Title: Re: 4905 shimmys/wanders
Post by: chessie4905 on September 22, 2014, 04:08:01 PM
   What happened to Ros?
Title: Re: 4905 shimmys/wanders
Post by: eagle19952 on September 22, 2014, 05:58:24 PM
Quote from: chessie4905 on September 22, 2014, 04:08:01 PM
   What happened to Ros?

he hangs out at BNO too...