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Author Topic: Runout on rear wheel  (Read 5981 times)

Offline masracingtd1167

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  • bill masiello Shelton Ct.
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Runout on rear wheel
« on: April 30, 2014, 12:59:49 PM »
I was just checking a spare set of wheels that I have and the runout is around .070 . Is this ok ?
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Offline wideopen231

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Re: Runout on rear wheel
« Reply #1 on: April 30, 2014, 03:42:20 PM »
Bill you are trying hard to get reason to buy some new wheels aren't you? I just replied to this on drr. I know  you found some super lite wheels you want right?

This from the guy who spent 4 hours maching on some used caliper to save 2 whole pounds off rear of car. Heck I drilled the holes to get the air out of them.

  I don't see how .070 could be big deal.Think about all the crap the tires does shape wise during a run. Is it wheel or mounting maybe tightened some before centeredmwould only take .035 off one way to get the .070 you have that pretty small on 15" wheel.
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Offline Cajuninjector

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Re: Runout on rear wheel
« Reply #2 on: April 30, 2014, 07:05:56 PM »
I just made the first race of the season (6 passes) with a brand new set of 2585's that had at least 5/8" difference and everything was fine.
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Offline wideopen231

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Re: Runout on rear wheel
« Reply #3 on: May 01, 2014, 06:12:34 AM »
Maybe my fault on confussion.Bill's post is about the wheels runout not the tires rollout.
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Offline Cajuninjector

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Re: Runout on rear wheel
« Reply #4 on: May 01, 2014, 04:39:30 PM »
I've never checked the runout of a wheel before. How do you do it?
 Sorry for my confusion.
« Last Edit: May 01, 2014, 04:43:25 PM by Cajuninjector »
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Offline PSweeney

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Re: Runout on rear wheel
« Reply #5 on: May 02, 2014, 02:16:10 AM »
throw it on the balancer without the tire, any visable run-out or if the rim requires too much weight to balance, I'd replace them.

I spent a season chasing a handling problem where my altered would start bouncing and break loose at 1000ft.  The season before I'd a "moment" in the shutdown where, due to my fault the car got out of shape and bounced around landing really hard on the rear tires.  Turns out I'd buckled a rim and bent a MW 35 spline shaft.  The shaft was chucked up in a lathe and had about 1mm eccentricity at the flange. 

So if in doubt replace,  :)
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