El Paso herald. (El Paso, Tex.) 1901-1931, 1914-03-07

there is no room for a coupling. Do you
think this would work out all right! can
do this at very little cost. An answer to
this as soon as possible W9ulQ re wei
coined. ALBERT Peters.
It is not advisable to install magnetic
ana drive same from the pump shaft with
out there being some sort Of a flexible coup
ling between the magnetic ana the pump.
Usually the water pump installation Is not
s,lfffcientIv rigid to permit the continuance
Of the shaft for the purpose. OF aIIVing the
magnetic While the armature bearings of
the magnetic are strong enough 70 ssgho
any ordinary wear and tear never lLeless
they are not sufficiently strong TO stand
constant thrust II you can line up the
magnetic perfectly, and securely support the
drive shaft perhaps you will experience no
trouble. 1t would seem more ADVISABLE
however; to set the magnetic DacA on a
sub-plate and use a coupling. hOu Slould
he able to obtain coupling with a uoater
which will take up very little space win
such an installation you are sure TO obtain
better results with less strain ana wear on
the armature bearings.
X
Motoring Department, The Herald-WoUld
thank you very mucn 70 sLNS me some
information regarding the following: nave
1e11 four cylinder car which has been
run about II 900 miles Ever since pur-
chased the car there has been more or less
trouble with motor knocking at times. While
overhauIing this motor 1 had occasion to
have a friend inspect the parts especially
the Distons and cylinders, and he claims
that the cylinders should be rebored and
new pistons fitted. me present plslons
have a convex head and doubt whether L
can obtain the oversize piston OF TINS type.
VIII YOU please advise whether any great
change will be noticeable, providing use
pistons with the flat head. know 1 can
6btaiD these and nv friend tells me that
possibly the knock in the motor VIII be
reduced by using the flat head piston
would appreciate your advice IN the matter,
and trust you Will make reply IN the next
Constant Reader.
TIE only material change viii be that
in the COMPRESSION. BY using the flat head
piston the compression will be signify re-
duced. This may be an advantage 10 your
motor in that you state you have been
troubled with the motor knocking at times.
Where the convex piston IS used a greater
area is subjected to the heat winch area
has no source Of cooling me hat mead
type Of piston is more generally used In
order TO reduce to minimum the surface
exposed to the hot gases. As a result the
nistop a bsorbs less heat Under the circum-
stances it would appear that such change
may prove a material advantage to your
motor, especially If it Is OF nigh compress
In having the new pistons made. care
should be taken to allow greater clearances
at the top of the piston than at the bot
tom There must necessarily be a greater
clearance at the points subjected to greater
heat This clearance is usually about two
thousandths Of an inch for each inch of
cylinder bore at the head Of the piston,
and about One-half thousandth at the bot
tom a
Motoring Department, The Herald have
recently purchased a six cylinder car which
has to date run very. Observation-Disclosures
is to saw / cannot get the motor 10 pull
properly or to act as it should. The mo-
tor viii at times miss fire and act as If the
carburetor we're entirely out of adjustment.
I have tried every possible adjustment Of
the carburetOr. Magnetic seems to be in
perfect condition, yet there is something
decidedly wrong. either with the ignition or
carburetor The magnetic is Of the stand /
ard make and the carburetOr is OF standard !
make. The valve timing has been carefully |
checked, and everything seems to be in !
perfect condition Can you suggest any D
thing which might possibly cause this mo- |
tor TO act so Queerly? There is no author (
lied dealer Of this car in this section and /
therefore am at a loss without their eX-
perienced advice Can you suggest any
thing which might help me overcome my ,
trouble2 C. H Alison.
You have not given enough detailed infor- |
nation regarding the type and construction /
Of the motor. You state that the trouble /
seems to be g combination Of ignition and !
carburetOr. It is barely possible that the |
number Of motors it seems to be common !
practice to suspend the ignition wires care /
lessly or in such a manner which does not |
facilitate proper ignition It is not good !
practice to bind together with tape into one /
cable all the ignition wires or to hang same I
in a tube of non-Conducting material Es- ]
pecially is this true OF the secondary or
high tension wires It is a known fact that
on high tension cables static currents form
of sufficient intensity to upset the firing
order II not properly cared for 1t is pos
sible that the secondary wires OF your motor
are tapped together and then suspended by /