[Chevelle-list] 'slightly' off topic- disc brake question.

[J. Brady]

Thanks Leo-  I'll check to see if the sensor is there
(think there is but not sure).  If there is, I'll see
if it can be adjusted at all.

Regards,

Jim

--- Leo John Costigan <nagitsoc at comcast.net> wrote:

> First off, that gear on the back of the rotors is
> for the anti lock brakes. 
> There is a sensor mounted of the spindle that has a
> set clearance between 
> the sensor and the rotor. You may have this sensor
> too close to the rotor 
> and that is the clicking sound.  You could destroy
> the sensor and not have 
> anti lock function is a panic situation when the
> brakes lock up.  On the 
> dash there is a warning light for anti lock brakes. 
> It should come on when 
> ignition switch if turned to the run position and
> then go out.
> 
> 
> 
> If your vehicle does not have anti lock brakes when
> you got the replacement 
> rotors you got the ones for anti lock and there is
> interference because of 
> the 'gear' on the rear of the rotor and after some
> driving the gear brakes 
> off or wears until the is clearance.
> 
> 
> 
> The gear on the rear of the rotor is actually part
> of the wheel speed sensor 
> system that controls when the brake system will go
> into anti lock.
> 
> 
> 
> Hope this is of some help,  Leo
> ----- Original Message ----- 
> From: "J. Brady" <jmbiii at yahoo.com>
> To: "Chevelle Group" <chevelle-list at chevelles.net>
> Sent: Saturday, September 23, 2006 5:23 PM
> Subject: [Chevelle-list] 'slightly' off topic- disc
> brake question.
> 
> 
> >I have a disc brake question which I'm hoping you
> guys
> > can help me with..  Only thing is, the brakes are
> on
> > my GMC Sonoma.
> >
> > Today I did new rotors, wheel bearings (in and
> out),
> > seals, and pads on my truck (also did badly needed
> > front shocks).  Thought since colder weather was
> on
> > the way, now was the time..
> >
> > This is the 2nd time I've done this in the time
> I've
> > had the truck (since 2000), and it's the 2nd time
> I've
> > had this issue.  With all of the new parts in
> place, I
> > went for a test drive.  Overall I can feel
> > improvement, but from 0-10 and at deceleration, I
> can
> > feel what I want to describe as a "ticking" or
> > "clicking" feeling in the steering wheel.  Again
> it's
> > only from 0-10 and at the very end.  The rotors
> are
> > brand new, and I know they're not warped b/c it's
> not
> > that sensation I'm feeling (I know that one).  I
> have
> > noticed tho that on the back of the rotor, where
> the
> > inner bearing is seated, there is what I want to
> call
> > a 'gear' with teeth that goes all the way around. 
> I'm
> > wondering if the ticking I'm feeling in the
> steering
> > wheel, is because I have the discs too tight and
> that
> > gear is rubbing somewhere?  I was able to spin the
> > discs after assembly before putting the wheel on
> by
> > hand, and they do spin but with some drag (which
> is
> > how I thought they were supposed to be).
> >
> > Other point worth mentioning, I did pack all the
> new
> > bearings with fresh grease, and filled the grease
> > caps, so I don't think it's the bearings.
> >
> > Any help would be greatly appreciated, b/c it
> pissed
> > me off to feel this after spending all day working
> on
> > this truck.
> >
> > Regards,
> >
> > Jim
> > '66 Malibu
> > '98 Sonoma a step away from trade-in
> >
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> 
> 
> 


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