El Paso herald. (El Paso, Tex.) 1901-1931, 1920-10-02

J. When the word degree" Is em-
/ ployed IN connection with engine
valve or magnetic timing. what does
/ the word imply?
,. What are the average gear
ratios Of four speed transmissions2
3. Are double exhaust pipes and
muI1lers necessary for eight or
/ twelve cylinder V type engines2
T. What is the purpose Of the safety
: spark gap on high tension magnetic 2
D. What is the average setting OF
spark-plug electrodes for various con-
ditions Of compression?
g. With what mixture should eT-
naust pipes and mufflers be painted
q. What is a possible effect within
the engine Of spark advanced too far
when the engine is iaboring uphlu2
8 What is the difference between
q Dackrlre into the carburetor and q
backfire in the muffler2
8. How does magnetic ignition tim
ing differ from that Of battery ig-
nition2
10. Where IS the differential To-
Gated In a double chain driven carr
Answers to Last Weeks Questions.
J. High tension current induced ia
the secondary circuit OF an ignition
coil requires a voltage OF about Is
900 volts to cross an air SAP 81 one
!. fourth Of an inch
2. A common cause Of leakage in
carburetOr which has had consider
able usage is a loaded float. A hole in
hollow float, so small that the eve
cannot perceive &c viii admit gasoline
Weighing il so it cannot rise to the
proper level 70 close of the admit
lance Of fuel through the inlet needle
valve Another cause Is this inlet
valve, the end Of which becomes worn
out Of round, not seating properly
and allowing a small flow OF Gasoline
hn aHrn
tirely- A sticking float or valve will
also permit leaking
8. A good solution TO protect both
interior and exterior Of a tire casing
Is made as follows: To one quart OF
cold patch cement add a quart Of
gasoline and about five pounds Of
whitening material mixed. Stir well
and keep covered when not in use.
Apply TO the tire with a brush The
above VIII make a gallon Of solution.
& The dlfferential Of fun floating
axles is removed by Withdrawing
both axle shafts. which transmit the
drive from the main shaft TO the rear
wheels, and removing in some cases
the cover plate at the rear Of the
housing. It may also be withdrawn
from the front OF the housing with
the main shaft. The rear wheels
OF housing OF axle and dlfferentlal
DO not have 20 be disturbed.
5. The unit used in measuring the
capacity OF a storage battery Is am
pere hour, OF current to the amount
II one ampere flowing for the period
Of an hour Volume or flow OF cur
rent from a battery IS measured in
amperes- To decide the proper size
OF battery for the car, decide the volt
age OF the lamps in use, the amount
OF current the battery viii have 60
deliver. Consider the kind Of lamps,
whether carbon or tungsten, and how
many OF these will be used at the
same time Total amperage can be I
found by adding the totals OF the
and kind OF lamps. their volt /
age and current required for each. z
Using six volt tungsten lamps, two I
lamps Of twelve candle power each /
for headlights, two side lights and /
a tail light are equal TO thirty candle I
power or five amperes. At this rate /
OF discharge, a six volt battery for I
starting and lighting. 14H inches. ]
by So inches. and 10% inches high I
VIII deliver current continuously for I
3 hours and IS minutes without be- I
Ing charged
6. Difficult shifting into a low /
speed when the car Is at the curb /
with engine running would be caused i
by the dry plate clutch having worn
fabric on the clutch brake or wrong D
adjustment OF clutch or brake. To
make easy shifting. renew the brake