[Shotimes] lug bolts shearing off

[Paul Chapin]

Mid 1991 they changed the diameter of the hole in the middle of the rotor.
It changed only by a very small amount but it makes a difference. You have
put the rotors with the smaller hole and the rotor is not completely seating
on the hub. You need to replace your rotors with the ones with the larger
hole. Take you build date off your door when you go to get the rotors.

Paul

----- Original Message ----- 
From: "Michael Piplani" <mpiplani@nycap.rr.com>
To: <shotimes@autox.team.net>
Sent: Monday, July 28, 2003 5:03 PM
Subject: [Shotimes] lug bolts shearing off


> This is my first posting to the list.... I've been a subscriber lurking in
> the shadows for years....
> This is my problem.  Spring 2002 I put my slicers on after winter and I
> tightened my lug nuts to a 'reasonable tightness'  - One that required a
> little effort to undo.  I'm driving around two months later and the front
> end starts to shake violently.  I pull over. and One lug bolt is
completely
> sheared off on either side of the front wheels.  I go to tighten the
> remaining lug nuts and shear off another one on the side of the road.  I
> limp home and chalk this up to having not tightened the lug nuts enough.
> I thought I learned my lesson-  I bought a torque wrench at Tire Rackthis
> fall with my new snow tires, and torqued all my nuts to spec.  No problems
> last winter.
> Well last weekend my wife is driving the car and the front starts shaking-
> she
> limps the last 10 miles of the NYS Thruway to our exit.  As soon as she
gets
> off the highway she pops the hub caps 3 bolts are sheared off on the right
> front wheel.  All are tight on the left!
> I used the torque wrench and torqued all those nuts down to the specs
(upper
> range) I got out of my Haynes manual.  I should mention I got new front
> brakes- rotors, calipers, etc... in April, but I changed the wheels after
> that work was done, and torqued those nuts down to spec
> I've never had this problem before, I rotate my tires 2x a year minimum
for
> the last 15 years, 10 of those years on a plain Taurus.
> Any thoughts?  (Sorry I couldn't access the archive if this has been
> addressed before)
>
> Mike Piplani
> 94 ATX w/ MD plates
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