Ignition Timing

Ignition timing should be checked or adjusted with engine at normal operating temperature. At idle speed, timing should be set to "F" on pulley. With engine speed at 5000 RPM, timing should advance to "M" mark, or within 0.12" (3 mm) of mark.

IGNITION TIMING SPECIFICATIONS

Application

Idle

5000 RPM

1974 Models

Federal

2°ATDC

27-33°BTDC

Calif.

8°ATDC

25-31°BTDC

1975 Models

Federal

5-7°ATDC

27-33°BTDC

Calif.

⁽¹⁾

⁽¹⁾	See emission control/tune-up decal for specifications.

Fig 1: Ignition Timing Marks

Courtesy of ALFA ROMEO AUTO S.P.A.