[Shotimes] Vibration or picky...again

[Zach Leahy]

I am not so sure what's funnier, the suggestion and your response, or
the fact that you actually checked it  :)

rotfl


On Thu, 24 Feb 2005 11:00:08 -0500, cmichaelo@optonline.net
<cmichaelo@optonline.net> wrote:
> 0.000001%?  That's ONE in 100 MILLION!!!
> 
> Why you even bother suggesting...lol.
> 
> Actually I did look into this, and the studs are fine.
> 
> Michael
> 94MTX,green,BOS+,Koni/Intrax,Baer,Corbeau
> SHO items for sale: http://hometown.aol.com/cmichaelo/for_sale.html
> 
> ----- Original Message -----
> From: Zach Leahy <leahyz@gmail.com>
> Date: Thursday, February 24, 2005 8:01 am
> Subject: Re: RE: [Shotimes] Vibration or picky...again
> 
> > Just a thoght,
> >
> > i didn't hear the whole story here, but i you wailed a pothole ard
> > enough, there is a slight (albeit quite slight0 chance that you bent
> > the lug studs.
> >
> > I give that about a .000001% chance of being correct, but what they
> > hey e are all fising here.
> >
> > Z
> >
> >
> > On Thu, 17 Feb 2005 17:12:15 -0500, Leigh Smith
> > <leighsm@comcast.net> wrote:
> > > Well;
> > > This is getting tough. Good thing I like brain-teasers!
> > > OK - Belts can shift in a tire, for many reasons, sometimes just
> > due to
> > > curing /heat issues. Many symptoms. Tread could move laterally
> > 1/2 in or
> > > more, or it could get a bubble in the tread or sidewall, or it
> > just may have
> > > a "stiff" spot during rotation. (Old BFG tire employee / chemist
> > / racer).
> > > But your car vibrates with 3 different sets, so I'd rule all
> > that out.
> > > Same with 3 sets of rims - rule that out.
> > > Now we are down to rotor / hub issues.
> > > I'm betting your problem is in there some-where.
> > > It's not bearings, different symptoms.
> > > I have no experience with Baer brakes. Are the calipers solidly
> > mounted? or
> > > do they float on pins?
> > > You mentioned a slight scrape during rotation - this usually
> > happens with
> > > even minor variations in rotor thickness. However, yours doesn't
> > vibrate on
> > > the brakes, so I'd rule out any major issue..
> > > You mentioned hub/rotor runout. I'd measure the hub VERY
> > carefully, with
> > > machinists type tools, dial indicator, solidly mounted, etc.
> > Runout should
> > > be almost zero.
> > > If you have solid mounted calipers, I don't see how hub or rotor
> > runout> could be bad, 'cause the brakes would vibrate like mad.
> > > But if they float, like stock ones, it will tolerate being "out"
> > a little
> > > bit.
> > > My best guess would be a slightly tweaked / bent hub 'cause of
> > that pothole
> > > you mentioned. If it bent a rim, that was a pretty big shot.
> > > If that part is OK, then it must be the rotors. Not warped but
> > maybe the
> > > balance is off. I'd have the rotors re-finished, and find a
> > place that can
> > > dynamically balance them..
> > > George's on-car balance method, or the on-car machines that
> > people used to
> > > use, would correct for that as well, but if you ever removed /
> > rotated> tires, you would have to have it re-done.
> > > You could put the tire back on the same wheel if you kept track
> > of how it
> > > was "indexed", ie: which stud/hole.
> > > Sorry this was so long, but it is a tough one.
> > > Good luck!
> > > Lee
> > >
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