The Glasgow courier., 1916-01-21
EXPERT ADVICE FOR
AUTOMOBILE OWNERS

Ny rear axle makes . noise. ssps.
eiaIly when turning a corner. ! have
had new housing and gears put in,
also new beveI gear driving pinion.
! When ! screw the enion as tight as !
think it ought to 60 il binds. What is
the matter?
| This condition is due to the shifting
Of the large ditferential gear. so that it
moves away from and toward the
driving pinion. The cause Of this is
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 a rigid con.
struction. II you are not familiar with
the work do not attempt 1t and under
no circumstances should you try to re-
adjust the gears to compensate for the
loose rod.
Ar chain carbon removers a. good
- the serapins method?
Much has been said against this
method Of removing carbon from the
cylinders. but it has been tried with
very satisfactory results. no harmful
effect on the motor being noticeable.
!, 1t 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 IL 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 it would not do to use the chain
in rotary or sleeve valve motor, be.
cause it would get caught between the
edge Of the valve and the edge of the
ports and be ground to pieces, md at
the same time the valve would be in.
jured. Furthermore. there is no pOssi-
bility OF small! pieces of chain break.
ing Off and scoring tho cylinders for
the reason that the chain is not brit
n.
Nor is the material hard enough for
the remover to scratch the cylinder as
it 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
he St',aped but rs these are easily ac-
re>S|'le this is not an objection
How are platinum points fastened to
screws Of a magnetic?
One method Is to hard solder tho
points in place. The first step is to Gu,
two small slots at right angles in the
end Of the two members carrying the
points. Then by the aid of the brass
solder the points are fastened in place
Kindly tell me something about long
and short intake manifoids. Which is
the better?
The short manifold usually is better.
showing superior results at low speeds
with wide open throttle and equally
good results at high speeds. When the
throttle Is wide open at low speeds. u
condition existing when the car is on
heavy pull. the liquid gasoline in the
manifold must be lifted greater
height in the long manifold. and he 0ce
there is a chance of loading up. due to
the liquid fuel dropping back agans,
the throttle. The condition really is
caused by the air velocity being insuf.
ticient to carry the fuel to the motor
With a short manifold the fuel need
not be lifted very high. and hence
there will be no loading up or collect