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Ask Amedee Your Own Question
Amedee, Former ASE Master Tech
Category: Car
Satisfied Customers: 24093
Experience:  ASE certified tech advanced level specialist. Wisconsin certified emissions state inspector
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How do i set the timing on a 1990 mitsubishi 2wd 2.4 4 cyl.

Customer Question

how do i set the timing on a 1990 mitsubishi 2wd 2.4 4 cyl. mighty max pick up truck
Submitted: 9 years ago.
Category: Car
Expert:  Amedee replied 9 years ago.

Precondition the engine as follows:
Engine coolant temperature at 85-95°C (185-205°F).
Lights, electric cooling fan, and all electrical accessories off.
Transmission in neutral or park.
Steering wheel in the neutral position.
Connecting A Tachometer

Install a paper clip into the tachometer check connector.
Connect a tachometer to the clip.
Ignition Timing Adjustment Connector



With the engine off, ground the ignition timing adjustment terminal with a jumper lead (routed at the top of the firewall).
Start the engine and allow it to run at curb idle speed.
Ignition Timing Inspection



Connect a timing light to the #1 spark plug wire (front) and check the timing. Basic Ignition Timing 5°±2°BTDC.
Adjusting Timing


If necessary loosen the distributor mounting nut and adjust timing by rotating the distributor.
Stop the engine.
Disconnect the ignition timing jumper wire and re-start the engine.
Recheck the timing. Actual Ignition Timing 8°±2°BTDC. Actual ignition timing may vary slightly under the direction of the ECU. If necessary re-check Basic Ignition Timing. If basic ignition timing is correct then no further action is necessary.