[net.auto.tech] Sad Story About Torquing Wheel Bolts

aegroup@tekigm.UUCP (Dennis Ward) (11/20/85)

> In article <4660@amdcad.UUCP> phil@amdcad.UUCP (Phil Ngai) writes:
> >In article <1484@vax3.fluke.UUCP> gnosis@fluke.UUCP (Chris Villani) writes:
> >>                ....etc......
> >
> >Do I also have to explain that to tighten the nuts you turn clockwise
> >and to loosen them you turn counter-clockwise? Cripes! 
> 
>                      .....et.al.....
>               ..... Oh, by the way Mr. Ngai I appreciate the
> lesson in rotational mechanics;  I've been having trouble getting the
> lid off my peanutbutter jar.
> 
> Chris Villani

 I should hate to have either of you work on our cars.  We have one car (a 1981
 Renault 18i) that has no nuts, just four bolts per wheel that, yes, tighten
 clockwise and loosen ccw; another car (a 1984 Renault Encore) that has four
 nuts per wheel which tighten cw and loosen ccw; however, our third car (a 1966
 Dodge Coronet) has five nuts per wheel that:  tighten cw and loosen ccw -- on
 the right side or passenger side, and tighten ccw and loosen cw -- on the left
 or driver side.  I do not know how many other makes of cars do this, but most
 Chrysler products (thru at least the 70's) had left hand threaded studs and
 nuts on the left hand of the car (driver side) and right hand threaded studs
 and nuts on the right hand of the car (passenger side).  

 I have heard that Chrysler was not the only car maker to do this -- does
 anyone out there know who else did (does) this?  From experience, I usually
 have to tell anyone working on the Dodge about this, as I have had several
 "mechanics" immediately try to remove the left hand nuts ccw and wonder why it
 does not work.  Luckily, so far, no one has stripped any of the studs.

 ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
 Renault:  Volkswagen with a French accent and sex.  (Compare engine
 compartments -- German efficiency vs French romanticism at its best.)

 ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~

toma@tekchips.UUCP (Tom Almy) (11/21/85)

In article <624@tekigm.UUCP> aegroup@tekigm.UUCP (Dennis Ward) writes:
>
> ...  We have one car (a 1981
> Renault 18i) that has no nuts, just four bolts per wheel that, yes, tighten
> clockwise and loosen ccw; another car (a 1984 Renault Encore) that has four
> nuts per wheel which tighten cw and loosen ccw; however, our third car (a 1966
> Dodge Coronet) has five nuts per wheel that:  tighten cw and loosen ccw -- on
> the right side or passenger side, and tighten ccw and loosen cw -- on the left
> or driver side.  
>
> ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
> Renault:  Volkswagen with a French accent and sex.  (Compare engine
> compartments -- German efficiency vs French romanticism at its best.)
>
> ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~

Yet another alternative: my Volkswagen Vanagon has 5 *bolts* per wheel on the
front wheels, and 5 *nuts* per wheel on the back wheels.  They all tighten
clockwise and loosen ccw.

Tom Almy

phil@amdcad.UUCP (Phil Ngai) (11/23/85)

In article <624@tekigm.UUCP> aegroup@tekigm.UUCP (Dennis Ward) writes:
>> In article <4660@amdcad.UUCP> phil@amdcad.UUCP (Phil Ngai) writes:
>> >Do I also have to explain that to tighten the nuts you turn clockwise
>> >and to loosen them you turn counter-clockwise? Cripes! 
>
> I should hate to have either of you work on our cars. 

I don't know if you deliberately left out the way we got here or
started reading in the middle. We were talking about Honda Civic brake
rotors and why so many of them seem to get warped. I advanced the
theory that they can be warped by an over zealous tightening of the
wheel lug nuts, noting that I had experienced such problems on my
Honda Civic. It was (and is) my first car so I have done a lot of
learning on it. After I discovered torque wrenches and changed my
brake rotors, I have not had any more problems with rotor warping. My
new rotors have had 4 years of use on them, with some miles going
downhill in the Yosemite National Park area. On one grade the brakes
got so hot they started losing their effectiveness. (not downshifting
on a down grade could be the subject of another lesson in how not to
use your car) Despite this overheating, my rotors have remained
unwarped. So I suggested others consider this cause of warping.

I WAS NOT TALKING ABOUT YOUR CAR. No doubt the next time I talk about
my car's sparkplugs some smart alec like you will whine that his
diesel doesn't have any. Try to restrain yourself.
-- 
 Raise snails for fun and profit! Race them for amusement! Then eat the losers!

 Phil Ngai +1 408 749-5720
 UUCP: {ucbvax,decwrl,ihnp4,allegra}!amdcad!phil
 ARPA: amdcad!phil@decwrl.dec.com