Richmond times-dispatch. [volume] (Richmond, Va.) 1914-current, 1918-03-10
.sIMPL|FIED LESSONS IN
PROPER CARE OF AUTOS
Guerrlich Explains Mysteries OF Car
4 buretor Adjusting In Plain
4 English.
POINTS You SHOULD GUARD
Carowner Should See That All Con-
ncctions Between Intake Valves
and Carburctor Are Tight to
Avoid All Air Leaks.
copyrighted. 1918. by Frederick G.
Guerrlich.)

H.
AUTO LESSON NO. so.
Time and. again ! have said: THAT
< once your carburetor is adjusted prop
erly. let It alone" This is good adj
vice, but. unfortunately few automo-
bile mechanics heed 1t. and when you
bring your car to n garage because the
engine does not run we'll. very often
the first thing done By mechanics is
TO play with the carburctor adjust
ments. so that they are often made
incorrect. Drivers. therefore. should
know how TO adjust their carburetors.
= / am giving herewith instructions in
the Adjusting OF the ccrburetors which
are the most used. / am giving the
Instructions as given by the makers.
and will make remarks on the various
steps given. First we will take up the
Schcbler. model l..
Before adjusting the carburctor.
make sure that Your ignition is prop
erly timed aud that you have n good
hot spark Mt each plug. that your
valves are properly timed and seated.
and that all connections between your
intake valves and carburctor are tight
so that there are no air leaks OF any
kind. Also the carburetor should be
adjusted to the motor under normal
running temperature, and not To a
cold motor.
The last sentence OF the above para
graph is extremely important. Never
make any kind OF an adjustment or
n cold engine.
In adjusting the carburetor, first
make your adjustment on the auxiliary
mir valve IA" so that It seats firmly;
then close your needle valve by turn
ing the adjustment screw ''B'' 10 the
right until it stops. Do not use any
pressure on this adjustment screw af-
ter It meets With resistance. Then
turn 1t to the left from four 20 five
complete turns and prime or flush the
carburetor by pulling up the printing
lever &C., and holding it up for about
FIVE seconds. Next, open your throttle
about onc-third. and start the motor;
then close your throttle slightly and
retard your spark and adjust throttle
lever screw "E" and needle valve nd-
justinG screw e.. SO that the motor
runs at the desired speed and hits on
all cylinders. 1890.
Note the sentence: do not use any
pressure on this adjusting screw" etc
The needle which this screw is at
tached to is quite thin and If pres
sure is used it will be bent. and adj
3usting be made almost impossible.
The last portion OF the paragraph
is 4 little vague. Never attempt to
do two things at once. First adjust
the screw b" as given In the note
below, and when the engine runs
smoothly. adjust "F." with lever on
steering column all the way closed. so
that the engine runs "a slowly as II
can without stopping.
Alter getting good adjustme mt
with your motor running idle. do not
touch your needle valve adjustment
again, but make your Intermediate and
hiEh-sPeed adjustments on the dials
I'D and r.. Adjust pointer on tn.
first dial ID from figure No. toward
figure No :. about halfway between
Advance your spark and open throttle
so that the roller on the track running
below the dials Is in line with .be
hrst dial. II the motor baclsfires with
tho throttle in this position, and tho
spark advanced. turn the indicator q
little more toward figure No. 3: or 1,
the mixture is too rich. turn the irdi.
Gator back or toward figure No. | unit
YOU are satisfied that your motor {.
running properly with the throttle ir
SDead
NOW, open Ne THROTTLE wide and max,
your adlusimssit On your dial "E" fol
'hlsh speed in the same manner as yo,
!''Ne mace your adjustments for inter.
mediate speed on dial ~"
Heed the first sentence of tho aho,s
paragraph. Doing the reverse is n
common mistake In making the inter.
mediate ana h;gh-speed adjustments
Hollow - hnla
When first starting motor i, w;,, y.
inclined to backfre. caused by all IN,
parts being cold. However, do no, r.
adjust carhuretor. but wait untu ~,
engine is warmed up.
Ut is absolutely necessary that a bo,
cir drum or stove with tubing be use,
with the model /. carhuretor m,
drums or stove shall be attached :,
he exhaus, manifold as clos. :, 49,
,ctrburetor as possible. in o-Icr tha,
the maximum amount OF heat NM. l.,
draw through the constant air omen.
Ing OF !he carburctor
Notc--Wc find In the n,i,-itv .
cases in adjusting this carbure.or IN.
tendency is to give too rich my.
ture. We suggcst and reconm.rd =,
ad1ustinE the ca7buretor, at low inter
mediate and high speeds. YOU cut dow
the gasoline until the motor begins ,r
backhre. and then increase the suno,,
OF iuel, a notch at 4 time. for ,ov
spced until .he motor hits evenly q,
oil Cylinders. DO not increase the sun.
Fly OF gasoline by turning the needs
VaiFd adjusting screw more than =
notch al time. in your low-spced nh.
Justincnt, and do not turn il apy of,e,
your motor hits regularly on =,
cylinders. In making the adjustment,