Motoring Department, Sentinel:
'lWhut is the proper way to clean a
spark plug‘.’ C. H. JORDAN.
_ Most people believe they have clean-
-cd a span-k plug properly when they
linvecleuned the spark gap points.
I'l‘hc proper way is to remove the pur—
~ retain or insulator and clean it thor~
mighty. The carbon deposit. on the
porcelain permits a short circuit bo-
tween the centre rod and the engine
metal. 11‘ the insulation is not clean-
--i. then the spark plug is as inotllcl-
wit as though not clcauod atoll.
.‘tiotoriug Department, Sentinel:
i would like to know the ditl’crence
lit‘lWE‘ell ndvancc‘und retard on a high
.‘onslon magneto. if it has anything
to do with the magneto when you
alrunre the spark or retard it. A
iriend says that when the spark in
mli‘anccd it, makes the magneto
.~.trouger. l suy that the magneto is
~«Hre same with the spark. either re-
lnrd or advance. .. A. N. WEEKS.
Advancing and retarding: the spark
or magneto simply iunkcs :rud brooks
'iho primary circuit by lllc‘flllh‘ of tho
I.‘ll‘(‘llli breaker sooner or later, as re-
unlrcd. The maximum voltage is ob-
tained \\‘il(-‘l tho armature breaks
.‘.\\'ilf.' from tho pole. \V‘hon a motor
3;. traveling at high speed it is neces-
;.1ry to anticipate the break slightly
111 order to obtain the best results.
it the primary circuit it nothrokcn
until tho arinatur'exhnn left the polo
11 wool: épark rcmdts. Since there is
niorprp loft; log it is necessary to
bare an tidvnucetl action to the cir-
('illl. breaker in order that the llll‘t‘h’l‘
11111111 spark efficiency may me ob-
tained at the time when tho arma<
lure breaks away from the pole.
.I'Zspecinlly is this desirable when a
motor is trawling at hi1:h speed.
Motoring Department, Sentinel:
Please explain in detnll the cause
and remedy of the trouble with n
Gasoline motor when the cylinders arc
flooded and will not start. I mean
to inquire why it is so didicult to
nturt an engine alter the cylinder has
boon overpriined. and wish
now one C1111 tell when
primed. and what
way ol‘ remedying.r it.
A grout many
it is over-
is the quickest
'1‘. 11. trunk:
persona make the
mistake of priming the motor too
much. Too rich a mixture will not
"White any more readily than a poor
.;1iI\turc. Raw gnisoliuc will not ex-
plode but simply burn slowly. Most
tarburcters have u primhn: lever 11t-
tachcd. 11‘ this lever is pulled once
or twice it i? suitlcient to llx «the mix-
ture for starting. When priming the
cylinders direct from the petcooku
\ory little gueolinc should be insert-
ed. The average pctcock him a cup
which, it' filled, in sufficient to prime
the cylindor. if too. rich a mixture
".«c drawn into the cylinder the pet-
cocks should be opened and the motor
«ranked 11 few time» in order to free
the cylinders of the rich mixture. it
the petcockn are then clout-1d and the
mot-or crunkqd without priming it
;.uoiiltl start without further trouble.
‘1»lotori11gr-llupartnicnt, Se'ntlnel:
During the punt winter 1 experienc-
mi :1 lot of trouble with the tire chains
on the roar breaking and hitting the
inndorn. Once the chain caught in
the right hand rear tender mid utmost
ruined it. Whencrvor the car would
am pver a heavy «bump in the road
lho fenders wouldceein to go down
ohd hit tho tires." This never hap
l-lellt‘d before. The springs seem to
be in good condition, but the tenders
now are in bad shape. l am about to
putt on new readers, and would like
tr. know whether there in any way
or urarnglug some fixture so that the
name thing will not happen again. 1
no not want to ruin another not at
new fendurn.I is there anything you
can suggest which is not too oxpon-
hire? 1;. '9. WA’UK’ER.
You have hinted that. this trouble
gradually developed. it is cv’ideut
that matters are ‘gettlng‘iwo‘roe; While
rtierraar cpringa upcom- to look all
rigli‘t,‘,norcrtliolous they have lost
thoir'oet. The most dconomidul way
to worcomoi to trouble would be to
Mke out to air springs and um
them man red and react. thirdly;
to know‘
. system.
. An Immatonal nine would cause the
1‘ ymlmotorgmhuld pound due to up 1'
mouth-o in be buselibetunkn More ‘_
than likely the carburetor does not .,
reunion it proper amount of would I
and. “to 1% result the motor mlsm m.
motor to buck or pound. ’l‘his coop. ,
‘ clonal miss would be more noticeable ,
in a tour cylinder type motor
W
Motoring Departmcht. Sentinel:
l lidvo a few qdcntlonu which
would like inborn answered:
that it started all right. and
lllltalllen’lBYt putting plenty of motor
. oll amt lacunae in itho icylinders it i ‘
worlce: '
managed to Work it. it utill
be udviuoblo to give. iiiclii a little
more set than they originally had. it
they have phown a tendency to be
weak from the beginning, it would
be advisable to have installed an
extra leaf. This will considerably
strengthen the spring and eliminate
your trouble.
Motorng Department, Sentinel:
Will you please tell inc why i can»
not. get my engine to thrOttlc down‘
properlyN'thn l town it stand idle
it seems as though it runs on only
one or two cylinders. At high engine
-‘speeds it is different although i do
not belielc I am getting all the now e1
I should it is a six-cylinder engine
and should be much more economical
on gasoline than it is. i believe the
carburetor in either not properly ud-
juuted of else it is not suited to the
engine. There have been a number
of adjustments made to the carbure—
ter. but it seems impossible to get it
right Can you give me one or two
helpful hints on carburetor adjust-
ments which will apply in thin case?
G. DUNN.
You have not stated the type of
cugiuc used. neither have you edited
the type ohcurbureter iii-zed. It is
quite lmpossible'to outline tho udJuur
mom of the carburetor without know-
"lug noniethlug about its constructive
features. FIromI what information you
have advaan it is safe to say that
the mixture is too rich for ..10w
engine speeds. By reducing the sup
ply of gasoline to a minimum and the
amount of air to 11. maximum, you will
approach a more perfect mixture. it
your carburetor will not. maintain this
mixture at all engine speeds then por-
l.ups you need different specifltations;
that in to say. a. different size spray
nozzle. or ditl’ercnt air springs. Mont
carburetors now employ more than
one gasoline Jet. You may
necessary to try several different ulzcs
before the best results can be ob-
tained. covering the full rangc ol‘
engine pseudo.
Motoring Depurtnwut. Sentinel:
l have bccn using a nmail 5011101141}-
powcr runabout equipped with the
Westinghouse starting and lighting
This system has given the
no trouble except on Ione or two oc-
casions when i wanted to start the
engine in a hurry. Then the starter
seemed to work all right but failed
to throw the engine over. After a
few seconds or this it would take
hold and be normal again. A couple
of weeks ago i took my car out, or
fltorage and am now keeping it in
a burn which, of comma. it not hunted.
l hove not had the opportunity it.
make any adjustments, because l do
not know enough about ll. 1 11111
anxious to know why this starttir
seems to work and yet does not turn
the engine over as soon as the. «witch
is turned on. i do not want to take
it apart until i hear from you. Mop
ing to no the answer in tho next is—
ouc ot.’ your paper. 1 remain,
ALFRED THOMPSON.
in the forward compartment in
itlie electrical imlt constituting the
starter you will find all holes. in this
compartment there is on overrunnlng
clutch which treuuonhly noodu a llttlo
lubrkuttlng oil to keep it in propel
condition. ‘Whiie this clutch to made
very substantially, nevertheleou it the
oil becomn‘ii gummed it will 11le and
at times full to portomi. in your cube
‘tlic car has been standing probably all
‘wintor and these parts have not been
lubricated when the car was placed‘ in
uervlcc. A little light oil injected into
thin compartment will bring tlieiclutch
back to its normal condition.
Motoring Department, Sentinel:
You recently advised the readers or
your paper not to one graphite in ollu
that contain acid. in there a. simple
way no test oils :to bind out or they
contain acids? Also, I have a gas
tank under front seat. lining a small
amount or pressure. If this pressure
in not. up when .you are going up.
bill, would it cause motor to knock
or pound? inbuilt that .5111: name‘s too
slow. Tlmnlttng ,yourln advance. re-
Iopocttully, ll '1'.
There as no about I
ininiugwitether all
x,
tlnd lt~
Ibard. but. is gradually loosening up.
lWhat i want to know in whether lb
lpistone iwore damaged in any way so?
ins to douse this trouble? " .
2. What could be the cause of this!
i have been told that the cylinders
have probably been ecored and mi '
that case will cause 11 permanent
loss of powei
3. VV Vonld it be possible to tell in
{my way for time whcthci or not they
huie been scored?
Expecting to see these (mentions
Innswered in your columns in a short
while. 1 remain yours very truly,
MN lNTPlRiESTEl) REAIilblll.
it is passiblc that the cylinders urn
scored. This would be caused by run-
ning the motor without proper lubrl
cation and cooling.
it is ditltcult to determine to what
extent they are scored unless you lift
the cylinders off and make a very
careful examination. if they are only
slightly damaged yourwill probably
not notice the difference. it badly
stored you (an easily note the low.
(11' compression. Would suggest that
you try the compression of each cyl
liider separately. In this manner you
tun diomparc the cylinders.
Motoring llcpurtment‘, Sentinel:
Recently i purchased a new car; tho
make of which i do not care to lllPu-
tiou. The car is perfectly satisfac-
tory in almost every respect. Tlicro
is one thing which 1 consider a detect
which it seems impossible for tIlteTlo-
cal denier to get rid of. and that hi,
this: When i am driving m-er a rough
piece of road and disengage tbu‘ clutch
there in u dlfitiiict rattle which ~booms
to come tioni the transmission and
(hive Robert; While it is'nobhel‘ious
and may not be noticed by four out at
live drivers. still i am always nervous
whenever there in a foreign noise
about the mechanism. l have not yet
been satisfied its to what 'lilllt noise
in 1.. and it worries me. I am told it in
nothing serious, but. curiosity will not
let me rest. with this exploitation. l
appeal to you for an explanation. i
want to know what might be the counts
of such a noise and whether it is apt.
to dovclop into anything serious. A
little advice on this matter will. be
yrcatly appreciated by
A CONSTANT READER.
You say that the rattle takes plnrc
only when driving over rough roads
with the clutch disengaged. ’l‘hiu‘
means that when the motor in pulling
and the transmission parts are under
stress there is no noise. In some types
of transmissions the sliding gears
work on the main shall. and affect
the direct drive by meshing a gear
within a gem. it the teeth of the gear
meshing with the internal gear will'
not make a. tight tit there is very apt.
to be u alight amount. ’ot' back loan
which will manifest ttuolt’ in a rattle
when coasting over a rough piece at
road with clutch out. Likewise it the
sliding member of a trauumlnslou on
the main shaft if not it tight lit the
same result is produced. While this
play is slight. still it is greatly lug-
nientod by the differential action due
to the wheels outpacing over the rough
roads. Perhaps by using a heavier
grade of trunnmlnston grease this
noise will be considerably reduced.
There in nothing to be worried about,
all the slight rattle lrom this source
under these conditions can do no in-
Jury. This can be eliminated by iii-
utalllng new sliding member on the
main ubaft in a manner so that there
will be no lost motion at the hub at
the sliding gear or at the point where
the gears are meshed in direct.
Motoring Department. Sentinel: .
A short time ago i purchased two
new tires which were guaranteed tor
V p.000 miles each. and installed them on
the rear wheelu of my our. 01' cameo,
[during the wet weather 1 won obliged
1to use chains, but I only used the
" ,i chains when absolutely necessary. and
believe the tire» did not run over 200
miles with the choice on. After these
circa had been dried about 1,200 or
1,500 miles the tread on both duos
had loosened up and [began to pool,
cit. Believing that. this was due tul
a defect in the tires, I wont. to the
company where i bought them and
sought an attainment. but was told tannin an warmed gummy mulled
had used chiming. and on account or ambmm t W" «on 11111111..
in; on Ibdlldf‘il‘éom ‘ ‘
this no “11.1mm would lib m...
This was new to 111w aft bobby
[1- intartod my car up a abort time ,
1 ago after it had been idle for it MW 1 ' ‘
"mouths. .
' abut it all againytlbut turban Maladies j .
start till cuttiucondv’ftlwflfiult would 110th
good.” Do you believe that the use‘ of
“to renew these coils frequently. To to-
‘tolae but) it will areal: and in time m.
‘ lure the fittings.
lubricate the working. parts.
011111.111
from choicootv
Fain-ungodamr
”til Ivory Ill-oi ‘
in A pearl of .
liquidpofiecfion. , ’ ‘
.Almyo the but.- 1
comb! "
MAoNEn a rnov,
‘ South Norwalk. Chm
[
-._... ”ouw
during. March weather. especially on
slippery rimveiponts. I attempted to.
cxpullu in a truthful manner the facti‘
that I used chains not more than 200.; ‘
miles, but this did not interest thoi
tire man. He simply uaidzr-“lt' 'oyui
used chains. our guarantee is no
chains during 200 miles out of 1.5th
miles would cause the fabric to loosen
up in such a manner as to pool on?
and practically make the tire useless.
for further Service? lain quite in
uorant in such muttem but. sort or"
feel the joke is on me. Does the
use of chains do us much damage in
most cases, in proportion, as 1 ex-
pcricnced? it comes to ,me much more
advisable to use non-skid tires and
not use chains. What is your opinion
in the matter? G. H. BOOTH.
it. the tires you purchased are of
eulilcient size‘uud properly carry the
weight they are dbliged to carry, and
it you have kept these tircu properly
inflatod at all times. nnd especiallyi
when the chains were used. then it
would seem that the tire; were-hot
up to standard. Usually the 5,000»
miles guarantee to not in reality whuti
it is in figures: On wot roads oue'hi .
obliged to one chains. lt is not roa-
roilublc to conclude that the use; of
chains for 200 miles will ruin a titre 1,
unless there to gross negligence on Ethel
part‘ 'ot the user in matters attire-
Mill} in addition to using a tire:
111' the proper size for the load cilr- '
‘rlcd, together with proper inflation-
ot the tire, it is well also to note titui
chains ohould not be bolted up Itoo;
tight. Chain service is best wheni
slightly tree, and at the came time
proves less injurious to the tire tread“
it should be sudlclbntly tree and. pent
mitted to grip. When attached in thief
manner the links will not loosen the:
trcodaot fixed points. For city use!
and such places where the track Bur-i
face is hard, the non-skid type tire is
withdut doubt more economical dur—
ing the wet season.
$.—
HELPFUL HINTS.
Very often on the bullet type dash
coils the connections become loosen-
cd from vibration and cause short ctr-i
cults. It is well to inspect these occa-'
mortally and tighten Ashort circuit
at this point will cause a. lot of iron
hle
After a car has been left in dead
storage all winter-the pistons are very
apt-to stick and the piston rings be
gummed with on. it is not advisable
to try to force the pistons over provld
i111; they do not work freely. A little
kerosene poured into the cylinders
will overcome the trouble. It the pix-1
and allowed to stand for several boom
ions, have rusted then crude all should
be used. .
Generally dry cells are 11qu for‘
starting purpooeb. Few people think
i
cllltato catty atorttug it is advisable
to change those dry cells two or three
Home during the cannon and perhaps
otteuor. By testing the cello frequent-
ly considerable trouble in starting will
b6 eliminated. .
Wiro wheels are usually installed
over talus hubs and looked in position
by lock nuts. It to advisable to inspect
these look mute frequently and tighten
same. ”It wheel becomes loose on the
, Where a combination timer and digiv
tributor is used few people think to
In this
admins device circuit breaker should
in) numb cleaned and “lasted.
also. a small amount of fruit all hutch
led. lf neglected for too great a. length
at time the parts will rust and stick
I! thin tolled pluco mistlringI la «bound
to regult.
”locum Wm DE.-
' ’ OMB.
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Norwalk Chronicler