What I've noticed is that when I torque my wheels to 95 ft/lbs (the exact
middle of the factory 90-100ft/lb recommendation) that they will loosen
about 1/4 turn after several fast autocross runs. More noticeable on
concrete surfaces versus asphalt.
I dunno if "loosen" is the right word but if I put the torque wrench to 'em
after 4 runs they need about 1/4 turn to again reach the same 95 ft/lb
setting. I'd imagine the heat expansion characteristics of the different
materials (steel rotors & studs and aluminum alloy wheels) is the prime
culprit. I wonder about it sometimes but I don't lose any sleep over it.
Eric Linnhoff in KC
1998 Dodge Neon R/T
#69 DS #13 TLS
eric10mm@qni.com
How heavy is the car? It could be just side loads on the lug nut seats
throwing off your initial torque. Try this trick:
1. fit wheel and hand tighten lug nuts
2. lower jack until wheel just touches the ground (idea is to support
only the wheel's weight)
3. torque to spec
4. lower the car the rest of the way
That seems to give me the most consistent torque settings.
Craig Blome
> ------------------------------
>
> Date: Tue, 27 Jun 2000 17:09:11 -0500
> From: "Tharpe, Joe (RyTull Coil)" <JoeT@ryersoncoil.com>
> Subject: RE: Antiseize on wheel studs causes binding?
>
> On a related subject,
> I am using the stock aluminum wheels, I have noticed that in between
> runs,
> the torque on the lug nuts will loosen by about 5-7 pounds during the
> first
> run of the day. After the first run they usually loosen by about ½
> that
> each run up to the 4th run they don't loosen any more. Any thing I
> should
> be concerned about?
>
> I check/torque the lug nuts to 95 ft lbs before each run.
>
__________________________________________________
Get Yahoo! Mail - Free email you can access from anywhere!
http://mail.yahoo.com/
|