Richmond times-dispatch. [volume] (Richmond, Va.) 1914-current, 1920-02-15
slMPLIFIED AUTO LESSONS
GASOLINE FEED TROUBLES
4 DISCUSSED BY GUERRLlCH
Expert Engineer Answers Many Cues
81 tons in Plain Terms Tor
cl,Att Car Owners.
ny FREDERICK &. G,EKnLIcu. VI. T.

4 Di, FREDERiCK 4. Gl1GRRLICIt. VI. T..
large percentage Of .carburetor
trouble is due 10 the feeding OF the
gasoline from the gasoiin. tank TO the
!. carburetor Sometimes the gasoline
Will feed too fast. thongh this. which
( IS practically always duo TO u defect
Sin the ftoat valve. is not nearly so often
y the case as is the gasoline feeding too
slowly.
When. the. mixture is too lean, or
gas 'f to air air is TOO sipali. il is goneralIy
: Indicated 10y q ''uppning" III the carbu-
rector. Now as The nliNtnre VIII become
) TOO weak when the gasoline does not
feed fast enough. The fact that il does
not fead enough viii usually bc indi.
Gated by a popping. especially al high
speeds.
From the above we can reason that
It the engine has been running We'll
and the carhurctor adiuS tInentS haN"
not been tempered with, If ii Sradu-
ally loses power aud there IS pop
ping in the Carburetor at high speeds.
that the gasoline flow is ohstructcd in
some way.
May ite Caused by Power Loss
Should YOU he troubled hy loss OF
power and popping before concluding
that an ohstruta ion in the feed system
is the cause, YOU must beat III mind
that the ioppins might also ne due 20
other causes. and firSt IL" sure that he
trouble is not one of these Thus the
popping may hc due IL a poorN-ad-
justed csrburetor: TO an inlet valve not
Seating property 10 wafer in tho Gaso-
line: or TO the engine 9,cing cold.
The best advice which can he even
ments is once rghi i"t them alone.
Some carhuTetors. which have an auto
matte auxiliary air valve, which valve
is held against its seat by light
: spring. will allow the DiNture 20 be-
come weaker because tho spring loses
its tension or strength Therefore II
be good to tighten the sIorine II there
be an adjusting screw for this. pur-
pose: or II not to make the ,m mtSi f"cG
line apart. IF this does not remedy the
trouble, set tho adjustments back TO
where they were.
grinding or not seating property q
spark may get past IL during. the on
plosion stroke and so iEnitc IN" mIN-
ture in the inlet manifold and thus
cause popping. Popping. Ivy the way,
IS due to the mixture in the manifold
igniting When tho miN,nrc is weak.
il Will be isritcd because tho party
exhausted gases arc still burning when
the inlet valve is opened.
Why Fired Comes Slow.
Having determined that the trouble
u11e. let us why the feed can he
TOO slow In the illustration tho SIM
plest method OF feeding the gasoline
is shown. namely, the gravity sys-
First we have the gas tanks. How
can this cause failure OF the Easo.
MAY be empty. or tho gasoline may
lie so low as 10 have the top of It lower
than the gasoline IN the carbnretor.
The latter condition often occurs when
the car is climbing a steep hill. when
the thing 10 do is 10 go up the h'it
backward.
Sometimes the ven, hole Cd in the
filler cap will Toe clogged up When this
happens u partial vacuum Will "radu-
ally form N the tank and 50 the gaso-
line will lrr sort OF held back IT is u
good nlan TO look 10 his v"nt hole
when filling the tank ana make sure
NEXT TO The TANK y sGme. s, the v havc
the ringer piece pointing downward
when tho valve is open Sometimes,
however. tho fingc. piece is horizontal,
.s shown at Il. when til" valve is open.
When this is the case the waive may
slowly close of itself because of the
jar and vibration Of the car, II "a little
waste. etc. were 20 Get into 'he tank
II probably would he caught by the
valve and so check the low or the
Scxt comes the tubing. Sediment
NAV clog this When 1t does il gem