Richmond times-dispatch. [volume] (Richmond, Va.) 1914-current, 1920-05-30
.S|MPL|F|ED LESSONS IN
CARE OF AUTOMOBILE
Expert Describes Timing and
Wiring OF Four-tnit
system.

Lecture No. 1919.
As the Ford car is shipped from
nished. II is almost impossible 10
properly time this system without
the use of battery. but as the bat
terry need only be used temporarily
the dry cells OF the house electric
bell can be borrowed for this pur-
pose. Al least four cells should he
The. battery can be placed on tine
running board. and one wire from il
connected TO any handy Part OF the
engine. while the other is connected
it on the battery box. This binding
post will be found vacant. no wire
being attached TO IL.
Steps to BE Taken.
The steps to take to time and wire
a Four Unit system are as follows:
/. BY, turning the engine over by
hand, determine the direction III
which the motor rota,es when the
engine is running.
9 Find the firing order.
3. Set the engine so that cylinder
number one uhe cylinder nearest the
radiator). is at top dead center be-
tween the compression and power
stroke.
numerical order to the spark plugs.
5. Connect NJ the battery. One
wire Will 20 TO the ground and the
s. Connec, the urinary wires.
which connect the coils to the timer.
to their binding posts on tho coil
!. Re,ard the spark control lever
fully and then advance ii about a
half inch on its segment.
S. Determine which end OF the
top segment in the timer Will Ice the
hrst TO hit the rotor, when IL Is re-
volvinE in the direction of rotation.
side of the timer the position of the
end of the segment. Then nut the
timer. in place on the engine and
transfer the mark to tho engine. Re
move the timer.
.. Set the rotor. so tina, a line
drawn from the mark YOU have just
will pass through the point OF the ro-
tor, which would first touch the sag
ment of the timer and fasten It. on
Ford cars, II is necessary 10 COM
press the rotor Nttlc against its
spring. as this IL the position il will
take when in the timer.
10 Place the timer on the engine
and connect the wire from coil num-
Der to the top binding post. Where
the wires are in casing so that they.
cannot be easily traced, YOU can tell
by closing the switch and then
touching tho wires to tho engine
one after the other. until the wire
which Will make coil number vi
be found likewise
II. Test the setting. when the
S"Ich is closed coil NO. ] should vi
bratc. but II tho spark control lever
IL slightly rstarded it should stop
vibrating. II it fails 20 stop the
rotor must he turned back little.
Failure OF the coil 10 vih-ate is n
sign that the rotor must be moved
little in the direction OF rotation.
BY noticing The amount the spark
control lever must he retarded before
he coil stops vibrating. or advanced
before II starts TO vibratc. You can
judge the amount the rotor must b.,
moved one way or the other
IL. After the rotor has been prom
erly set. attach the rest Of the pri-
maries. IN the firing order: that IS. If
the frinE order is LET'S. coil will
be attached TO the second segment
hit by the rotor, 1 10 the third and
to the fourth.
The above, being given in great de.
tail. may seem TO ne more difficult
than II really is. II would be wei
for Ford owners TO sort o: check up
the wiring Of their car by going over
the steps given above, without taking
off any % the wires
How 10 Install battery.
As said above, the Ford cars arc
not furnished with a battery. the only