Surtek 107369 Manual De Usuario Y Garantía página 9

As noted in earlier
requirements are vary from engine to engine
and for this reason the engine manufacturers
specifications should always be referred to
before making any adjustments.
These specifications are contained in the car
owners manual, on the underhood decal
required on all cars manufactured since 1968
and in various publications printed by such
companies as "Motor", "Chilton", "Petersen"
and others.
Many spark plug manufacturers such as
"Champion" "Autolite" and others also provide
specifications.
OPERATING PROCEDURES IN GENERAL
1. Locate engine timing mark (see figure 1) and
use a rag to clean all grease and dirt from the
mark and the pointer. It may help to use chalk
or white paint on the marks to make them more
easily seen.
2. Check manufacturers specifications for correct
timing for engine being serviced.
3. Start and run engine Until normal operating
temperature is reached. Approximately 15
minutes. Stop engine.
4. If specifications require, locate the vacuum
line going to the ignition distributor vacuum
advance and disconnect and plug the line. A golf
tee or small pencil may be used to seal the line.
5. Connect the timing light as shown in figure 2.
6. Start engine and opérate at normal idle speed.
Aim the timing light to timing mark as figure 6.
7. Trigger the timing light and observe the
reading from timing mark. CAUTION: Use care
when working around moving engine. To keep
hands, tools and timing light clear of moving
fan, belts or other moving parts.
8. Compare reading obtained in step 7 with
manufacturers specifications. If timing is not as
specified readjust as described in the following
procedure. Stop engine.
paragraphs, timing
FIGURE 2.
TO USE AN ADVANCE TIMING LIGHT
CHECKING THE "IDLE TIMING"
1. Set the knob at "0" position as
figure 3.
2. Follows the general procedures.
FIGURE 3.
CHECKING THE "CENTRIFUGAL AD-
VANCE" AND"VACUUM ADVANCE"
1. Follows the step 1 to 6 of general procedures
except increase the engine speed to 2000 rpm.
2. Trigger the timing light and rotate the knob
clockwise slowly and stop until the timing mark
moves to "T.D.C." or "O" position.
E N G L I S H
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