El Paso herald. (El Paso, Tex.) 1901-1931, 1913-07-19
Copyright, 1918, by W. H. Stewart, II.

I usually drive with the doors tied
open. This does not look well, ana L
know it is not good for the doors 70
be tied open while the car IS peins run
over bad roads. Can you suggest some
method whereby I may be able TO elm
mate this heat from the front seats! =
R s. Franklin.
Screened ventilators, were they IN
stalled in the dash, would help con con-
siderably, and the exhaust pipe shOuiu
be wrapped with asbestos cord n
great amount of heat radiates from
this pipe directly under the front Seals,
Some motors do not have Ventilated
hoods If there is no ventilation 10
the motor the heat is bound 10 be
driven back toward the seats. If by
using ventilators in the dash and
wrapping the exhaust pipe with asDes-
tos YOU do not obtain enough rel1eI,
would suggest that you have the sides
of the hood stamped in order to par
TALLY ventilate the motor If you nave
an adjustable windshield, 1t is also
possible to set the glass IN such
manner that a current OF air VIII De
DETECTED into the forward eompart-
ment when the car is in motion
\
Motoring Department, The Herald
1 have a six cylinder motor ear OF
prominent make which has given con-
siderable bearing trouble. Am using
the best grade of oil, and 1 do not
abuse the car. After running 1zVO
miles il has been necessary TO take up
on the connecting rod bearings This
does not seem right with new car
Can you suggest what might be the
cause Of such troubles A d.
There are a number of things which
might cause this trouble You may be
using too light a grade OF OIL Whleh
in warm weather Is not advisable, as
the bearings at high engine speeds are
very apt to be starved; that is, the
film OF oil is so light that the metal
surfaces are not held from contact
Then again, it Is possible that you are
driving the motor with too great an
advance spark Most people who drive
six cylinder motors have the impression
that on account of the flexibility and
torQue Of the motor il is not necessary
TO change gears in picking up speed
at crossings, etc. AS a result the
motor is often obliged to take up the
load with spark too far advanced A
spark knock on a six cylinder motor IS
difficult to detect; in fact, much more
so than on a four cylinder motor. By
forcing a six cylinder motor to pick
up loads continuously with too great
an advance Of spark, a constant bear
ing pound is set up which in a short
time results in loose bearings. "A spark
knock has the same effect on a bearing
as hammer blow, and one cannot be
too careful in controlling the spark ad-
vance, especially In traffic driving.
<
\
Would it cause any extra wear on the
differeRtial If. in turning sharp corners,
one did not throw out the clutch. Or
is II best to throw out the clutch and
reduce it to second speed--Harry Dali
ton.
To throw out clutch in turning cor
ners does not affect the differentiaL
10 is designed To care for such require
ments. To disengage clutch in turning
1 sharp corners is good practice, but this
is done more to relieve straight line
shafts. Sharp corners should be taken
at reduced speed, and to do this it is
/ often necessary to change to a lower
gear before accelerating.
Motoring Department, The Herald
| At times my engine continues to run
/ after the switch is off. It does not
cause me trouble, but I would be
/ pleased to know why this should hap
pen.-Reader.
When a motor gets overheated It
| viii do this. The cause of overheating
K is due TO defective cooling system or
an excessive carbonization of the cyl
inders. A heavy carbon deposit on
| the walls of the combustion chamber
viii cause preignition and the trouble
you mention.