LEMON Manuals: Even more car manuals for everyone: 1960-2025
Home >> Volvo >> 1976 >> 242 Base, Automatic Trans >> Repair and Diagnosis >> Engine Performance >> Tune-Up >> Tune-Up Procedures - 4-Cylinder >> Ignition Timing >> 1979 Models
April 5, 2026: LEMON Manuals is launched! Read the announcement.

1979 Models

Connect timing light and tachometer to engine. On Federal models, disconnect and plug distributor vacuum hose at distributor. On all models, use idle air adjusting screw to set idle speed to specified RPM. Rotate distributor to set timing to specifications. Reconnect distributor vacuum hose.

Fig 1: 240 Series Ignition Timing Marks
G09326576Courtesy of VOLVO CARS CORPORATION
IGNITION TIMING SPECIFICATIONS

Application RPM Timing
1974 Models 600-800 10°BTDC
1975 Models 700 5°BTDC
1976 Models 700-800 15°BTDC
1977-78 Models 700-800 12°BTDC
1979 Models
Federal 700-800 (1) 10°BTDC
Calif. 700-800 8°BTDC
(1) With distributor vacuum hose disconnected and plugged.