Evening star., 1921-05-01

Answers to Last Weeks Questions.
l. The car which has had several
seasons of use invariably develops
squeaks and rattles from vibration
and wear. and in many cases from
lack of attention in oiling and ad-
justing. To locate the sources of
noise is a matter of systematic ex-
animation and testing. which should
be done after all dust and mud
has been washed away, nuts and
bolts frightened. lubricating passages
cleaned and the car thoroughly oiled
and creased. Then, after a trial run,
inspect the following tor noises: The
body of the car where it is bolted to or
rests on the chassis: springs between
leaves, at clips or where they are Sc
cured to axleS or body; shock alb
sorbers; doors and hinges: dash and
its securing brackets; floor boards;
windshield; top at joints of bows,
body or windshield fastenings: fend-
ers or fender braces: license tags or
brackets; lamps or brackets: clutch.
brake or accelerator pedals rubbing
floor board or loose at connections;
spare tires or their locking devices;
tools or tool box; wiring. armor COW
cred: loose battery: muffter or parts
within it: eXhausHpipes: loose engine
oil pan: radius or torque rods; engine
loose in frame; universal joints;
clutch release thrust or pilot bear
mission: wheels steering knuckles or
gear; air fan: fly wheel; vibrating oil
or gasoline lines: loose hood or radi-
ator: steering wheel. throttle and
spark controls and tire rims and their
retaining lugs.
supply enough current for ignition
to keep an engine running after
starting, but will not give sufficient
spark to start the engine if the cleo
trio starter is used for cranking,
because the drain on the battery is
so great when starter is applied that
not enough current is left to supply
a large enough spark for ignition.
Consequently the engine will not
start But when the engine is
cranked by hand all the battery cur
rent that is used passes to the ig-
milton system when a heavier spark
is produced. This is also true when
the engine is running.
3. Here are some ways with which
you may learn the firing order OF
your cars engine: Revolve the hand
cr.nk until either of the valves In
radiator. begins to open. Then slow
Iy turn the crank. watching the cor
responding valves open in each CYL
inder. The order of their opening
will be the firing order. Another
way is to note the revolving arm
with contact point of the distributor.
When il makes connection with
terminal trace the wire from the ter
minal to the Sparkplug to which IL
leads. Performing this operation
with each of the terminals will tell
the order the engine fires. Opening
of g. n
to the order in which they hiss also
will tell the firing order.
4. The transmission should not be
fabricated with solid grease be-
cause the gears will merely cut
path in the grease and all parts
within the case will not be lubri-
Gated. Also in the systems which have
drilled clutch shafts. through which
the release bearing is oiled from the
transmission. heavy grease would not
pass through to this bearing. which
would soon become dry.
S. When reassembling parts of an
engine which require the use of gas
kets. such as cylinder heads of some
engines. an old gasket should not
be used il it has been compressed
too tightly, or if pieces, no matter
how small. have been broken from it.
A tight joint cannot be obtained and
leaking will result. In replacing a
cylinder head do not draw down any
bolts tightly until all bolts have
been partially frightened. Also do not
tighten bolts in order around the
cylinders. Skip from side to side and
from end to end. so that there will
be uniform tightening Of the head
on all sides.
s. Before starting to adjust the car
buretor be sure that all inlet valves
in the engine seat properly and that
there is no serious leakage of com :
preston through the piston rings
proper carburetor adjustment cannot