The Brookings register. [volume] (Brookings, Brookings County, S.D.) 1903-1971, 1915-05-13

Will slightly rotating the poppet
valves of a motor prevent the valves
from improperly seating ard carbon
from forming on the valve seats?
O%scillating the valves will tend tC
keep the seats clean n thus the
valves will be found TO seat more uni
formly. Naturally. this will also pre-
vent the accumulation Of carbon IL
any quantity on the seats.
My motor skips when running slowly
or pulling hard on high gear IL the
spark lever is advanced moro than half
way on the quadrant. As soon as re-
tard the spark below this point the en-
CINE picks up and will pull as we'll as
il ever did. Why is this7 II 10 not
the fault of the oarbureter, as have
tried all kinds Of adjustments and have
operated It under every condition.
If the magnetic is correctly timed II
is probable that the trouble Is due to
weak magnets. When the spark lever
is advanced all the way the spark &C
tualIy occurs when the armature is al
the edge Of the magnetic field instead
Of being I'm the position where the
strength Of the field Is greatest. There,
fore II the magnets are weak the eff
feet must first be felt at the weakest
point In the field, and that may be Ell.
Their a position Of great advance or re-
tard, depending on how the magnetic
Is linked up. R~echarging the magnets
should remove the trouble.
have a bent steering knuckle.
Should this be Strengthened whom cold
or hot?
The knuckle should be Strengthened
when hot. 1t Is better to put In a new
one, however, as 1t Is difficult to
straighten 1t so that the wheels will
run true. II the bend Is In the spindle
there is no possibility Of Strengthening
1t satisfactorily, and even If only the
arm Is bent 1t will be hard to true
It up.
Are the 90 called antitrust prepara-
tions Injurious to the cooling system?
We have no reports where any Of
the preparations which are on the mar
ket that are sold especially for auto
mobile radiators have done any harm.
There are occasions, however, where
boiler compounds have been used
which contain corrosive substances
that have acted injuriously on the ra-
diator and water connections. For
this reason before using any prepare
ton II should be known that it is In
tended particularly for radiators and
nothing else.
How far apart should the spark plug
points be, using q high tension mag
nsto7
The usual point clearance Is one thir-
ty-second inch, but many find that
even a smaller clearance Is better. II
the plug points are too far apart you
will soon be aware that something ia
wrong, as the motor will start to miss,
particularly when the car Il running
slowly.
We would appreciate your telling u
how to correct the oiling system In q
new car which has given trouble sInoe
u left the factory. The oar has been
driven 5000 miles, % by this time
should be thoroughly sworn In" The
trouble 10 that oil works up into the
first and fourth cylinders.
Faulty piston rings seem to be the
only condition which would give the
oiling trouble you mention. 1t may bt
that the joints of the rings, which arr
Of the ordinary eccentric type, have
become aligned, leaving a passagewa,
for the OIL to enter the combustion
space. Another possibility Is that yor
have too much OIL In the crank case
which causes a greater supply thar
necessary to be thrown up. 1t woult
seem that the best step to take would
be to remove the pistons and examine
the rings on the cylinders that CIV
the trouble. The pistons can be re
moved by taking of the lower half o
the crank case. removing the lowe
connecting rod bearing cap and with
drawing piston and connecting rod as
sembly. A replacement Of the ring
should eliminate the difficulty.
Can gas such a. generated from car
bids be used in an automobile sn0insf
Yes. Occasionally we hear of a mo
torist driving home on acetylene gal
when his supply Of gasoline Il exhaust
ed. The objection to the use Of thu
gas Is that II Ii much more expensive
than gasoline.
The storaos battery seems 20 ehar0'
On my car 90 that u will furnish cur
rent for the lights and start the motor
then suddenly Il will beeonse die
charged. Where should look Tor n
troublef
From the information you.. furnish
would seem that the battery u eithe
completely discharged or you have
short circuit IN the system. Il wool
seem quite likely that II = the formel
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