Table of Contents
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SAFETY PRECAUTIONS .............................................................. |
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GENERAL INFORMATION ........................................................... |
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ABOUT THE TIMING LIGHT ............................................................................ |
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OPERATING SPECIFICATIONS ....................................................................... |
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OPERATION .................................................................................. |
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APPLICATIONS ................................................................................................... |
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TIMING LIGHT CONNECTION......................................................................... |
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VOLTMETER OPERATION................................................................................ |
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CHECKING DWELL ANGLE ............................................................................. |
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INITIAL TIMING CHECK (USING NO. 1 CYLINDER) ................................... |
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ADVANCE/RETARD TIMING CONTROL CHECKS ........................................ |
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TIMING ADJUSTMENT ..................................................................................... |
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TROUBLESHOOTING ........................................................................................ |
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MAINTENANCE ............................................................................ |
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CLEANING THE INDUCTIVE PICKUP CLIP.................................................. |
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REPLACING THE INDUCTIVE PICKUP LEADS............................................ |
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WARRANTY AND SERVICE ......................................................... |
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LIMITED ONE YEAR WARRANTY ................................................................... |
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SERVICE PROCEDURES ................................................................................... |
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Safety Precautions
Always observe safety precautions whenever working on a vehicle.
DO NOT wear loose clothing, watches, rings or other jewelry when working on a vehicle.
Always wear safety eye protection.
Only work on a vehicle in a well-ventilated area.
Put transmission in “park” (for automatic) or “neutral” (for manual). Set parking brake. Put blocks on drive wheels.
Avoid moving fan blades or any potentially moving parts. WHEN USING THE
TIMING LIGHT, THESE PARTS MAY APPEAR TO BE STOPPED OR MOVING SLOWLY.
Avoid hot engine parts.
The vehicle battery produces explosive gases. DO NOT smoke or allow spark or flame near the battery.
BE CAREFUL when working near high-voltage parts (spark plugs or coil terminals). Turn off ignition before connecting (or disconnecting) any testing equipment.
ALWAYS READ THE VEHICLE'S SERVICE MANUAL BEFORE PERFORMING ANY PROCEDURE. OBSERVE ALL SAFETY PRECAUTIONS.
NOTE
EMI/RFI problems with Digital Timing Lights:
■If the Digital Timing Light readout becomes inoperative or locks up during use, disconnect and reconnect the timing light's positive battery clip from the battery to reset the unit.
■Some aftermarket ignition systems and/or specialty spark plug wires (solid core wires, racing wires, off-road wires) radiate above normal ElectroMagnetic Interference (EMI) and Radio Frequency Interference (RFI) which can cause improper operation of testing equipment. Please contact these manufacturers for instructions on how to use an inductive pickup with their systems.
■It may be necessary to replace the No. 1 spark plug wire with an O. E.-style plug wire during testing.
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General Information
ABOUT THE TIMING LIGHT
This timing light is designed for use with all 12-volt negative-ground vehicles. The timing light may also be used on vehicles equipped with DIS (distributorless ignition systems).
Operating Controls and Indicators — General (see Figure 1)
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TIMING |
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LIGHT |
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Figure 1. Operating Controls and Indicators |
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1.Xenon Bulb — Used to illuminate timing marks for checking timing.
2.Swiveling Head — Contains the xenon bulb. Rotates over approximately 90° to allow for easy illumination of timing marks in hard to reach locations.
3.Control Panel — Contains the controls and indicators necessary to operate the timing light.
4.Inductive Pickup Leads — Detachable leads assembly connects timing light to the battery and ignition system:
■Red Battery Clip — Connects to battery positive (+) terminal.
■Black Battery Clip — Connects to battery negative (-) terminal or bare metal chassis ground.
■Inductive Pickup Clip — Clamps around No. 1 spark plug cable.
■Green DWELL Clip — Connects to the negative (tach) side of the ignition coil.
Control Panel Controls and Indicators (see Figure 2)
1.Flash Switch — Push to turn strobe light on. Push again to turn strobe light off.
2.LCD Display — Provides a digital display of engine operating parameters including engine speed (rpm), advance (degrees), dwell angle (degrees), and battery and charging system voltage. Displayed information depends on operating mode selected. LCD display is backlit in soft blue light for easy viewing in low-light areas.
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General Information
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BATTERY VOLTAGE MODE |
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ADVANCE MODE |
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DWELL MODE |
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Figure 2. Control Panel Controls and Indicators |
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