El Paso herald. (El Paso, Tex.) 1901-1931, 1913-07-12
Copyright, 1918, by ". H. Stewart, i.


Motoring Department. The Herald
The spark plug in one of the cylinders
Of my car gets out OF WORKING olutt
after the motor has been running an
hour or So SCOT forms on it quickly,
causing the motor to miss fire ana
skip. The valves have been grOunu
and the compression in the defective
cylinder seems to be as good as In any
Of the others The other plugs may
be used for a month without cleaning
What do yca think may cause this
OuDIe--AolorlSL
The cylinder in question IS either
getting too much oil or is not properly
cleared of exhaust gases II the
rings are not fitted properly the OIL
Will work up through the ring open
ings and also through the spaces BACK
of the rings Inspect the exhaust
valve and note whether II has the
maximum lift. The clearance between
the tappet rod and the valve stem
should not be greater than one sixty
fourth inch The greater this clear
ance the less lift the valve has, Whlcn
in turn prevents proper scaVenglnE OF
the cylinder. There is no reason why
one cylinder should CarDOniZe more
more than another. except lnat l-e
piston and rings are not properly nj
ted In modern Oiling systems eaeh
cylinder should receive equal luDrlca-
ton Sometimes where grease IS used
in timing gears it will work through
the main crankshaft bearing into the
forward compartment Of the case
When this happens the forward GYM
der is usually most affected with car
bonizaticn. If the adjustment OF Jue
valves does not remedy your trouble
would suggest that YOU have properly
fitted to this cylinder new piston rings
Motoring Department. The Herald
My - car is fitted with overhead
valves and operated with single cam
shaft and rocker arm The lua-
ignition system is employed WI ME
recently testing the engine I Sheareu
off two of the four bolts that held
the connecting rod bearing Of the sec
end cylinder on the crankshaft- After
replacing these. I adjusted the olher
bearings and worked them IN unul
the crankshaft turned over with ease
When / started the engine II MISSED
On the second cylinder / tested Jne
ignition, changed the spark plugs, anu
put in a new high tension wire from
the magnetic TO the cylinder i IAen
adjusted the rocker arm, GROUND IN
both valves, put new copper SasheJs
around them and put in new rOliet
at the bottom Of the pushrod Where
il works on the cam shaft Also IeSleu
the compression, which was ABOUT the
same as on the other cylinders still
it didn't run. I then put new E2Skels
in the intake manifold and readluSL
the carburetor- The exhaust pipe gets
hor If the engine Is run for I'D minutes
or longer and it also hits on four ID
raced. When pulling 1t went over
30 miles per hour. II seemed 10 Work
all right, but under that il missed ana
Knocked. / want to say, however, lnar
only a few days ago it ran perfectly
all the time and throJtled down TO
bout is miles per hour DuL Wnen We
completed our trip the exhaust pipe
was red hot and the radiator was
sreaminE and boiling. The next day lt
missed on the second cylinder again
I am certainly puzzled over this mys-
terioUs trouble and should like to
know some remedy to overcome it
c. N. Deenan-
Your trouble undoubtedly lies in the
rocker arm adjustments If these al
justments are not accurate the leau /
to the intake and exhaust valve is
changed. thereby upsetting the funC-
lions Of this cylinder. Usually there
are marks on the fywheel which viii
help you TO determine when the valves
should open and when they should
close. In overhead valve motors the
adjustments TO the valves cannot al
ways be according to rule. especially
when the motor has been used con-
siderably Would suggest also that YOU
inspect the valve cages for warpaEe-
If the cages are slightly warped the
baskets viii not hold The overhead
ing would not occur If the valves ana
spark are timed correctly An over
rich mixture viii cause Overheattng.
Would suggest that YOU reduce the
mixture to as lean a state as possible II
the mixture is right and you know the
valves and ignition are timed properly
then you must look to the cooling sys-
TEN It may be that the radiator
needs to be cleaned or that the hose
connections, etc, need replacing
Motoring Department, The Herald
Please inform II while starting car
it is better to accelerate the motor be
fore engaging the clutch or 10 &c
celerate as the clutch is let lnE IL
seems that the latter method would
be less wearing on the clutch facing
$ ID. Rheims
1t is more advisable to accelerate
the engine as the clutch Is being en-
accelerate the motor sufficiently In or
der TO take care OF the load Wneh
the clutch is engaged, otherwise the
motor viii stall If the motor IS
speeded up first and then the clutch
engaged, the tendency viii be to start
the car with a jerk.
Motoring Department The Herald
While adjusting one of the bearings
in one of the rear wheels I had oc-
CasiOn to take bearing out. and In
doing so lost one Of the balls VIII
It inJure the bearing TO run without
the lost ball2-Amateur.
You should replace the lost bali
without delay, taking particular care
to obtain the exact size so that all
the balls of the bearing viii be the
same II you do not replace the loSL
ball the additional strain put upon
the others may cause the cutting OF
the ball race. When this starts, the
life Of the whole bearing viii be very
short
Motoring Department. The Herald
After the engine Of my - car has
been running for a little while the
carburetor runs dry, but it only does
this when I start up the engine the
first time in the day. Otherwise, 1t
never gives any trouble on the road,
either driving or running idle. The
auxiliary tank on the dash remains
full and the hole in the cap is quite
clear I have opened the valve that I
shuts off the gas from the carburetor
a little more, but it does not remedy
the trouble. have taken the car
buretor. piping and auxiliary apart I
but find nothing to stop the gas from
flowing. Can you assist me in lOcat-
ing the trOUble2-Owner
Would suggest that you inspect {
carefully the float valve and pivots
Of float. Also note whether float (
sticks 1t IS possible that overnight I
corrosiOn Of the parts causes them TO /
stick for time when first starting.