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Home >> Volkswagen >> 1984 >> Vanagon F4-1915cc 1.9L >> Repair and Diagnosis >> Powertrain Management >> Ignition System >> Ignition Timing >> Adjustments
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Ignition Timing: Adjustments

Ignition timing, adjusting

Work sequence

Caution: Ignition must be switched OFF before connecting tester






- Connect tester according to manufacturer's instructions
- Connect + (plus) cable to alternator or junction box






- Disconnect idle stabilizer plugs from control unit (squeeze plugs to release-upper arrows)
- Connect plugs together (lower arrows)
- Adjust idle speed to 850 ±50rpm

Adjusting ignition timing with TDC sensor:
Ignition timing is indicated directly on tester.
Specification = 5° ATDC

Adjusting ignition timing with timing light:
- Shine timing light on timing mark.
Mark on pulley must align with crankcase half parting line.

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