Howdy Zoltan,
To expand on Hendriks excellent comments about rotating tires -- the
accepted method since the 70's is to move the tires front to rear and vice
versa when Radial tires became common place. It is believed that the radial
plies takes a "set" based ib the direction they are traveling in and if
these type tires are changed side to side the direction would reverse and
the radial bands may become dislodged. For this reason, it is no longer
suggested that tires be moved side to side.
So, even though your tires are directional & must be changed front to back
and reversed, it's been this way for quite a while - not just for direction
tires but for all radial tires. The old method of LF to RR and RF to LR no
longer applies.
HTH's
Larry T (67 MGB, 74 911, 78 240D, 91 300D)
www.youroil.net for Oil Analysis and Weber Parts
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.
----- Original Message -----
From: "Hendrik Riessen" <[EMAIL PROTECTED]>
To: "Mercedes Discussion List" <[email protected]>
Sent: Saturday, October 21, 2006 6:23 AM
Subject: Re: [MBZ] Directional Tires
Generally it is recommended to move left front to left rear and the same
for
the other side. This is because the tyre (regardless of being directional
or
not) "gets used" to going in one direction and if it suddenly goes the
other
way there may be increased tyre wear and other problems. Generally the
reason tyres are rotated is that the front will almost always wear
unevenly
and by putting them on the rear you tend to wear down the parts that have
not been worn as much. This however is negated somewhat by modern
independant rear suspensions, some of which wear tyres more on the rear
than
the front, particularly if towing loads. Generally the rear tyres wear on
the inside as do the fronts, so you are not achieving much by rotating
tyres.
Unless you swap tyres in such a way that the inside of a tyre is on the
outside. However if you have rapid tyre wear then you need to rebuild the
suspension and get it aligned by a reputable aligner.
I have seen in some owners manuals the recommendation that the spare tyre
be
involved in the rotational process. Anybody else come across this?
Hendrik
who has to stop generalising so much but does rotate his tyres (they
rotate
nicely as I drive along:-))
----- Original Message -----
From: "Zoltan Finks" <[EMAIL PROTECTED]>
To: "Mercedes Discussion List" <[email protected]>
Sent: Saturday, October 21, 2006 5:05 PM
Subject: [MBZ] Directional Tires
I'm wanting to rotate my tires, but they are the type that indicate the
direction that they should rotate. This prevents me from doing the
recommended type of rotation where the front two wheels get moved to
their
opposing-side positions in the rear.
SNIPPEROONEES>>>>>>>>>>>>>>
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