Aberdeen herald. [volume] (Aberdeen, Chehalis County, W.T.) 1886-1917, 1915-07-25

NY rear axle makes . noise. sspe.
eiaIiy when turning . corner. have
had new housing and gears put In,
alec now bowel gear driving pinien.
When I screw the pinien ~ tight ~ I
think Il ought 70 90 Il binds. What 10
the matter?
This condition Is due to the shifting
Of the large differential gear, so that it
moves away from and toward the
driving pinion. The cause Of this IL
= usually loose truss rod, which per.
mits the housing halves to separate
The left half Of the housing should be
removed and the bolts reset and tight
ened. and then the truss rod taken up
as far as possible to form q rigid con-
struction. II you are not familiar with
the work do not attempt It and under
no circumstances should you try to re-
adjust the gears to compensate for the
loose rod.
Are chain carbon removers % good
% the serapins method
Much has been said against this
method Of removing carbon from the
cylinders. but 1t has been tried with
very satisfactory results. no harmful
effect on the motor being noticeable.
It certainly is a quick and effective
method and equal In every way to the
result obtained when the cylinders are
removed and scraped. Many people are
afraid that If they use this method
there Is danger of the chain catching
In the valves or that small pieces Of
the chain will become broken OF and
score the cylinders Both experience
and careful thought ON the subject.
however. will show that there is no
possibility Of the chain catching in the
valves Of any poppet valve motor OF
course 1t would not do to use the chain
In rotary or sleeve valve motor, be-
cause 1t would get caught between the
edge Of the valve and the edge Of the
ports and be ground to pieces, and at
the same time the valve would be in
jured. Furthermore. there is no posi-
bility Of small pieces Of chain break.
Ing OF and scoring the cylinders for
the reason that the chain is not brit
tie. 1t will bend before 1t will break.
Nor Is the material hard enough for
the remover to scratch the cylinder as
1t Is battered about. The chain will
only remove the carbon from the top
Of the piston. the cylinder head and
that part of the bore that is above the
piston travel The valve pockets must
be scraped. but az these are easily &C.
cesslble this is not an objection.
How are platinum points fastened to
screws Of . rnasnsto7
One method IL tn hard solder the
points In place. The tirst step Ia to cut
two small slots ut right angles in the
end Of the two members carrying the
points. Then by the aid Of the brass
solder the points Mre fastened In place.
Kindly tell me something about long
and short intake manifolds. Which ID
the better?
The short manifold usually In better.
showing superior results ut low speeds
with wide open throttle and equally
good results ut high speeds. When the
throttle il wide open at low speeds. a
condition existing when the car Ia on q
heavy pull. the liquid gasoline In the
manifold must be lifted greater
height IN the long manifold. and hence
there III a chance " loading up. due to
the liquid fuel dropping back against
the throttle. Tie condition really H.
caused by tho air veio. lily being insuf
tcient to carry tho fuel tn the motor
With a short manifold the fuel need
not be Fitted very hi.rh. and thence
there will he no Ionding up or collect
ing Ut gasoline In the nlunifoid
hat- ~ tho slsfs-ct the -averzge -stur.
age battery when used ror starting?
A starring and l...h, H., ba.rrg. will
last for three to frur years. Il property
cared for. Each year the battery will
need new selmrMtDrs.
How can change a low compression
motor to high compression ons7
The compression liza, ht raised 10y
several methods. II Is hardly m,lvis.
able to make this change. because your
motor has been designed for n certain
compression. and II you raise 1t. say
ten pounds. you will submit the cyiin.
ders to greAter sti1iin than they were
designed for. the pressures un the cyl.
Under walls will he greater and the
wear on the bearings more. II your
motor II not giving sufficient power
you should find out what IN the mat.
ter with It rather than raise the com.
preston.
Probably the best method 10 to rivet
. plate to the top Of the piston Or the
cylinder. whichever In more cUnven.
lent. Placing the plate on the piston
adds weight to the reciprocatinR
masses. while II It II attached to the
:. cylinder head there II danger Of inter.
ference with the dow Of the gases in
and out. In either case be sure that
there IL clearance enough between the
piston and the cylinder to allow the
plate to be put into place. II the plate
Ii attached to the piston It should be
made of aluminium for the sake 1T
lightness.
Lengthening the connecting rods "r
increasing the crankshaft throws will
also increase the compression hut
neither Of these methods ia al simoip
or as cheap "a the frat one suggested
Dust In Your Eyes.
The expression ito throw dust In the