GENERAL UPKEEP-Tyres
TYRES
The maintenance of correct tyre pressure is a large factor in tyre life and the
steering and suspension of the car.
Examine the tyres occasionally for flints or other road matter which
may
have become embedded in the tread. Clean off any oil which may have got
on the tyres by using fuel sparingly.
Driving into or over sharp edged kerbs
is liable to fracture
the walls of the tyres and may in severe cases affect the
front wheel alignment or even bend the wheel
"
out of truth."
Tyre Pressures
Front
22
lb. sq. in. (1.55 kg. sq. cm.1.
Rear
24
lb.'sq. in. (1.7 kg. sq. cm.).
These recommendations listed below apply to cars used under ordinary road
conditions either in the U.K. or Overseas. Where cars are to be used for racing
or special high speed testing where a sustained speed of more than 110 miles
per hour is anticipated, it is desirable that the
Dunlop Rubber Company should
be consulted as to the need for tyres of full racing construction.
(a) Normal motoring in G.B. and under
similar road and traffic conditions
elsewhere.
100;105 m.p.h. 100,'105 m.p.h.
1
Up
I
Over
(b) Continental type touring with lengthy
periods at sustained speeds in excess
of 85/90
m.p.h.
Key
:--
-
R.S.
-
(c) Motoring which is predominantly and
regularly of the high speed Continental
touring type.
N.E.
Normal equipment,
i.e.
Dunlop or Dunlop Fort, as case may
be, at regular inflation pressures.
-
--
-.
N.E.
N.E.
+
6
lb./sq. in.
(0.42kg.lsq.cm.)
R.S.
Road Speed tyres at regular inflation pressures.
Changing Position of Tyres
R.S.
+ 6
1b.isq. in.
(0.42kg. 'sq.cm.)
R.S.
It is recommended that front tyres be interchanged with rear tyres at least
every 2,000 miles. Diagonal interchanging between left front and right rear
R.S.
+
8 lb./sq. in.
(0.56
kg./sq.cm.
j
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