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Francoc
Samba Member
Joined: May 05, 2006
Posts: 164
Location: Austin, TX
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 Posted: Fri May 25, 2018 11:07 am Post subject: How freely should the rear wheels turn? |
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| If I lift the rear of my bus and turn the wheels by hand, they don’t seem to turn freely at all. I know this is very unscientific, but I can spin a wheel with my hands as fast as I can, and when I let go, the wheel will do one turn and stop. I removed the drum to rule out the brakes dragging, and same thing. Is there any kind of benchmark for how freely a wheel should turn? Yes, the gearbox is in neutral, and no, the parking brake is not on. Thanks in advance. |
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Tram
Samba Socialist
Joined: May 02, 2003
Posts: 22711
Location: Still Feelin' the Bern- Once you've felt it you can't un- feel it.
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| Posted: Fri May 25, 2018 11:22 am Post subject: Re: How freely should the rear wheels turn? |
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This is normal. Don't overthink things. 
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| Just my hands. And a little lube. No tools. |
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Abscate
Samba Member
Joined: October 05, 2014
Posts: 22648
Location: NYC/Upstate/ROW
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| Posted: Fri May 25, 2018 2:29 pm Post subject: Re: How freely should the rear wheels turn? |
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You are turning a differential - if you put the other wheel up it will turn backwards. The proof is left to the student
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timvw7476
Samba Member
Joined: June 03, 2013
Posts: 2201
Location: seattle
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| Posted: Fri May 25, 2018 3:33 pm Post subject: Re: How freely should the rear wheels turn? |
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| one axle & two CV joints are pretty heavy too. |
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hazetguy
Samba Member
Joined: April 06, 2001
Posts: 10773
Location: iT StiNgeD iTseLf tO dEAd
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| Posted: Fri May 25, 2018 4:05 pm Post subject: Re: How freely should the rear wheels turn? |
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| Tram wrote: |
| Don't overthink things. |
but where is the drama in that? 
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thebucket: I invested in hoodride, now DBD won't return my call?
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Wildthings
Samba Member
Joined: March 13, 2005
Posts: 50338
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| Posted: Fri May 25, 2018 4:21 pm Post subject: Re: How freely should the rear wheels turn? |
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| You are turning most everything in the transaxle when you do this, so yes there is a lot of drag. Unless you have been on the highway recently the oil is going to be cold and viscous so it takes a fair amount of energy to stir it around. |
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SGKent 
Samba Member
Joined: October 30, 2007
Posts: 41031
Location: Citrus Heights CA (Near Sacramento)
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| Posted: Fri May 25, 2018 5:15 pm Post subject: Re: How freely should the rear wheels turn? |
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| hazetguy wrote: |
| Tram wrote: |
| Don't overthink things. |
but where is the drama in that? |
LMAO - thanks Jon I needed that.
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“Most people don’t know what they’re doing, and a lot of them are really good at it.” - George Carlin |
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Francoc
Samba Member
Joined: May 05, 2006
Posts: 164
Location: Austin, TX
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| Posted: Sat May 26, 2018 9:39 am Post subject: Re: How freely should the rear wheels turn? |
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| OK, here’s a follow up question. After going for a drive, I noticed that one drum is noticeably hotter than the other. Like, one is warm and the other will burn you. I adjusted the brake shoes as per the manual on both sides. Both wheels feel about the same when I turn them by hand. Why is one hotter? |
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SGKent
Samba Member
Joined: October 30, 2007
Posts: 41031
Location: Citrus Heights CA (Near Sacramento)
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| Posted: Sat May 26, 2018 10:17 am Post subject: Re: How freely should the rear wheels turn? |
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because the shoe on that side is dragging. You need to find the cause. Make sure the e-brake is fully releasing on that side. One caveat. If you made lots a heavy braking, pulled in, checked them, and only one was hot then it means the other one isn't working. That said, a bad wheel bearing could cause that too but more likely it is a brake shoe. When you adjust them, step on the brakes before starting and before your final check. They can get off center so you think they are adjusted but they are not. A broken shoe return spring can cause that too.
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