[W126 Coupe] Jack's wheel saga.

[Jonathan Hodgman]

Ya'll need to get your cornering speeds up;-)

Jonathan



On Wed, 02 Feb 2005 16:00:51 +0000, Sharan Bains
<sharanbains at hotmail.com> wrote:
> Whilst deceleration wear is material, it's not as significant as
> acceleration wear.
> 
> The rears are suffering both - acceleration or deceleration wear ALL the
> time.
> 
> So whilst I agree that wear on w126 front tires is probably more than other
> RWD cars, it's difficult to believe it's more than the rear tyres on the
> same car, that drive all that weight forwards.
> 
> On my 3 W126's over the past 8 years, the rears have worn out far quicker
> than the fronts.
> 
> And on my w124 500E, the rears are changed about twice a week !!!!! :-)
> That's down to all the fun I'm having with the drags from the lights against
> all the boy racers.....it's great lacing their pimp ride with a German Taxi.
> 
> talbir
> 
> >From: "Chiappinelli, Joseph" <joseph.chiappinelli at mirant.com>
> >Reply-To: Mercedes Coupes Mailing Lists <mbcoupes at mbcoupes.com>
> >To: "Mercedes Coupes Mailing Lists" <mbcoupes at mbcoupes.com>
> >Subject: RE: [W126 Coupe] Jack's wheel saga.
> >Date: Wed, 2 Feb 2005 10:34:20 -0500
> >
> >Your physics are correct but not totally complete. There is the matter of
> >the weight on the front tires of 126's being significantly more than the
> >rears. In real world driving which does include curves, that weight plays a
> >significant roll. You also have the "deceleration' wear from braking that
> >is much more on the fronts than rears. On a RWD car with a 50/50 weight
> >distribution, it might be different but on my cars (always in alignment and
> >well maintained suspensions) I've always gotten more life out of the rear
> >tires.
> >
> >J.Chip
> >
> >-----Original Message-----
> >From: mbcoupes-bounces at mbcoupes.com
> >[mailto:mbcoupes-bounces at mbcoupes.com]On Behalf Of Sharan Bains
> >Sent: Wednesday, February 02, 2005 10:23 AM
> >To: mbcoupes at mbcoupes.com
> >Subject: RE: [W126 Coupe] Jack's wheel saga.
> >
> >
> >The rears wearing out quicker than the fronts is not related to power but
> >due to the fact that the MB's are RWD.
> >
> >It's physics essentially - the rear wheels will always be accelerating and
> >hence always wearing out. The fronts are not - they are only suffering wear
> >on turning. Even on the highway, at a constant speed of 50mph say, the rear
> >wheels will ALWAYS be accelerating. Unless you are on a frictionless
> >surface, in which case there will be no acceleration.
> >
> >If fronts are wearing out quicker than rears on a RWD, then only two
> >reasons
> >for it :
> >
> >(1) suspension/tracking is not right.
> >
> >(2) Your journey to work is 80% turn-ins and corners.
> >
> >The W126 requires 4-wheel alignment - i.e. the fronts need to be aligned
> >with respect to the rears, since you cannot make any adjustments on the
> >rears on a W126. But if trackings out you can have situations where your
> >rear wheels are pointing straight ahead but your fronts are at a slight
> >angle. So even when you're moving in a straight line, your fronts are
> >essentially skidding along at an angle !
> >
> >If when driving in a straight line you are still hacksawing away at the
> >steering wheel, i.e. continuous input to the steering, then there is a
> >problem with suspension / tracking.
> >
> >talbir
> >
> >
> >
> > >From: "Shayegan, Richard" <rishayegan at davidson.edu>
> > >Reply-To: Mercedes Coupes Mailing Lists <mbcoupes at mbcoupes.com>
> > >To: "Mercedes Coupes Mailing Lists" <mbcoupes at mbcoupes.com>
> > >Subject: RE: [W126 Coupe] Jack's wheel saga.
> > >Date: Wed, 2 Feb 2005 09:43:54 -0500
> > >
> > >Same, but I think it's because the us 380 is too weak to burn out those
> > >back tires but can get up to a high enough speed to do some cornering
> > >work. Now my dad's 540, that thing will wear out the back tires. I think
> > >the backs had 2/32 when we replaced them and the fronts had 4/32.
> > >Richard
> > >
> > >-----Original Message-----
> > >From: mbcoupes-bounces at mbcoupes.com
> > >[mailto:mbcoupes-bounces at mbcoupes.com] On Behalf Of Chiappinelli, Joseph
> > >Sent: Wednesday, February 02, 2005 8:49 AM
> > >To: Mercedes Coupes Mailing Lists
> > >Subject: RE: [W126 Coupe] Jack's wheel saga.
> > >
> > >Not suggesting there is no benefit, just questioning the cost/benefit
> > >relationship. By the way, for whatever reason, my front tires have
> > >always worn more rapidly than my rears on the four 126 models I've owned
> > >over many years.
> > >
> > >J.Chip
> > >
> > >-----Original Message-----
> > >From: mbcoupes-bounces at mbcoupes.com
> > >[mailto:mbcoupes-bounces at mbcoupes.com]On Behalf Of Sharan Bains
> > >Sent: Wednesday, February 02, 2005 8:24 AM
> > >To: mbcoupes at mbcoupes.com
> > >Subject: RE: [W126 Coupe] Jack's wheel saga.
> > >
> > >
> > >
> > >The tool for those OZ wheels IS held by certain refurbishers. Tools
> > >required
> > >to open almost every other multi-piece wheel made by BBS, OZ and Ronal
> > >etc,
> > >ARE readily available, since they usually require 12-point sockets or
> > >12-point spline bits, which are available anywhere and everywhere.
> > >
> > >It's just these OZ 3-piece wheels that have a rare fastener head - but I
> > >
> > >managed to source the tool, so with a little effort, anyone else can
> > >too.
> > >
> > >My original statements still hold true, namely :
> > >
> > >1) components can be replaced or re-furbished on multi-piece wheels
> > >rather
> > >than having to dish the whole wheel
> > >2) higher quality AND lighter metal is used, meaning lower unsprung
> > >weight
> > >=> better handling
> > >3) they look miles better than a single piece wheel
> > >
> > >Fine, point 3 is subjective. But points 1 and 2 are fact. It's why all
> > >the
> > >tuners, AMG, Brabus, Kleeman fit multi-piece wheels to their products.
> > >It's
> > >why BBS, OZ Racing etc, the best wheel designers in the world invest so
> > >much
> > >money on developing multi-piece wheels.
> > >
> > >Aftermarket wheels are always heavier and lower in quality.
> > >
> > >To suggest there is no benefit to multi-piece wheels is about as true as
> > >
> > >suggesting front tyres wear out quicker than rear ones on a RWD car. It
> > >just
> > >doesn't stack-up.
> > >
> > >
> > >
> > >Talbir
> > >
> > >
> > >
> > >
> > >
> > > >From: "Chiappinelli, Joseph" <joseph.chiappinelli at mirant.com>
> > > >Reply-To: Mercedes Coupes Mailing Lists <mbcoupes at mbcoupes.com>
> > > >To: "Mercedes Coupes Mailing Lists" <mbcoupes at mbcoupes.com>
> > > >Subject: RE: [W126 Coupe] Jack's wheel saga.
> > > >Date: Wed, 2 Feb 2005 07:29:12 -0500
> > > >
> > > >Ah...the "benefits" of multi-piece wheels.
> > > >
> > > >-----Original Message-----
> > > >From: mbcoupes-bounces at mbcoupes.com
> > > >[mailto:mbcoupes-bounces at mbcoupes.com]On Behalf Of Sharan Bains
> > > >Sent: Wednesday, February 02, 2005 4:09 AM
> > > >To: mbcoupes at mbcoupes.com
> > > >Subject: RE: [W126 Coupe] Jack's wheel saga.
> > > >
> > > >
> > > >Hi Jack,
> > > >
> > > >The tools required to open the 3-piece OZ Racing AMG wheels are not for
> > >
> > > >sale
> > > >anywhere in the world.
> > > >
> > > >Only a few wheel refurbishers have the tools required. The attached
> > >image
> > > >shows the tools set that I have - I was lucky to get in touch with a
> > > >contact
> > > >on the inside to acquire these tools.
> > > >
> > > >The fastener heads are 8mm 10-point and the fastener nuts on the rear
> > >are
> > > >10mm 10-point.
> > > >
> > > >BTW, in a previous post you said the wheel shop had the wheels split -
> > >how
> > > >could this be possible if they do not have the tools to undo the
> > >fasteners
> > > >?
> > > >
> > > >Some cowboys grind out the original OZ fasteners and replace them
> > >standard
> > > >ones - beware ! The fasteners used by BBS and OZ are bespoke for
> > > >multi-piece
> > > >wheel usage - the fasteners have a tensile strength of 10.9, i.e. they
> > >can
> > > >withstand a force of 150,000 psi. Standard fasteners should not be used
> > >on
> > > >multi-piece wheels - only ever use the original fasteners. You can see
> > >the
> > > >numbers '10.9' engraved on each fastener head.
> > > >
> > > >You'll need to find a refurbisher who has the tools set for these
> > >fasteners
> > > >- someone who does AMG/Porsche wheels for a living. I don't think
> > >you're
> > > >going to find the tools anywhere.
> > > >
> > > >Talbir
> > > >
> > > >
> > > > >From: "Jack Emery" <jemery at wn.com.au>
> > > > >Reply-To: Mercedes Coupes Mailing Lists <mbcoupes at mbcoupes.com>
> > > > >To: <mbcoupes at mbcoupes.com>
> > > > >Subject: [W126 Coupe] Jack's wheel saga.
> > > > >Date: Wed, 2 Feb 2005 16:00:26 +0800
> > > > >
> > > > >When I went to collect my wheel I was told that the repairer had no
> > > >wrench
> > > > >to fit the little stud bolts around the rim.His whole business is
> > >wheels,
> > > > >but he said he had not seen these wheels before.
> > > > >The studbolts have 8 flutes in the head. Does anyone know where to
> > >get a
> > > > >wrench, please?
> > > > >      Jack OZ
> > > > >
> > > > >
> > > > >The MB Coupes Website!
> > > > >W126 SEC Mailing List
> > > > >Postings remain property of MB Coupes, L.L.C.
> > > >
> > > >The MB Coupes Website!
> > > >W126 SEC Mailing List
> > > >Postings remain property of MB Coupes, L.L.C.
> > >
> > >
> > >The MB Coupes Website!
> > >W126 SEC Mailing List
> > >Postings remain property of MB Coupes, L.L.C.
> > >The MB Coupes Website!
> > >W126 SEC Mailing List
> > >Postings remain property of MB Coupes, L.L.C.
> > >
> > >
> > >The MB Coupes Website!
> > >W126 SEC Mailing List
> > >Postings remain property of MB Coupes, L.L.C.
> >
> >
> >The MB Coupes Website!
> >W126 SEC Mailing List
> >Postings remain property of MB Coupes, L.L.C.
> >The MB Coupes Website!
> >W126 SEC Mailing List
> >Postings remain property of MB Coupes, L.L.C.
> 
> The MB Coupes Website!
> W126 SEC Mailing List
> Postings remain property of MB Coupes, L.L.C.
> 


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