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Tel. +49 (0) 2191 / 46438-0
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www.swstahl.de
BED
IENUN
GS
AN
LEI
TUNG /
INSTRUC
TI
ON MANU
AL
Connection of the Timing Light with a petrol vehicle:
1.
Connect the Inductive pick-up (6) lead with the Main cable (5).
2.
Connect Battery Clips to the vehicle battery, Red (3) to Positive terminal and
Black (4) to Negative terminal. The vehicle chassis must be connected to the
battery Negative terminal.
3.
Connect the Inductive pick-up (2) to No.1 SPARK PLUG
What is Timing?
1.
The timing light is used to check the timing on spark ignition engines. Correct
timing has a positive influence on the performance and life time of an engine.
2.
At the firing point the spark plug ignites the fuel-air mixture forced into the cylinder
by the piston. The flame spreads from the point of ignition throughout the entire
combustion chamber. This is the time when the greatest combustion pressure is
exerted on the piston and therefore also the greatest force is acting on the piston.
As a certain time elapses between ignition and the flame spreading over the
entire combustion chamber, ignition must occur before reach the top dead centre.
The correct firing point is specified by the vehicle manufacturer. Incorrect
adjustment of ignition timing can damage the vehicle.
In the owner's manual, and do-it-yourself reference books and data sheets you will find
much helpful information on testing and tuning your vehicle.
Important:
Always switch off the ignition before doing the followings:
connecting motor testing instruments
replacing ignition system components
While working on an electronic ignition system, be sure DO NOT touch any live parts
once the ignition is on and the engine is running. With an electronic ignition system
dangerous voltages can occur throughout the system, not only at an individual unit such
as the coil or distributor, but also at the cable harness, on pin-and-socket connectors, or
connections to testing instruments etc. When testing and tuning with the timing light, be
sure DO NOT touch any leads between the instrument and the vehicle.
Preparations for Adjusting the Timing
If the position of the injection pump has been modified or if timing is suspected to be
incorrect.
After connect the Timing Light with a petrol engine (as shown in Page 2), run the engine
to operating temperature, and make certain that the contact breaker points or the dwell
angle are correctly adjusted.
1. Use your owner's manual to determine the pertinent technical data of your vehicle
(e.g. rpm, dwell angle).
2. Two marks are needed for adjusting the timing:
a.
A fixed mark on the engine housing, usually a pin, arrow or graduated scale
b.
A rotating mark on the flywheel or on the crankshaft pulley, mostly in the form of a
notch, a steel ball or a graduated scale
