Table of contents: Ignition coil ↓ Spark plugs ↓
The ignition system is battery-powered, contact-type, with a nominal voltage of 12 V. It consists of an ignition distributor, ignition coil, spark plugs and high-voltage wires.
Brand: Bosch JFU 4 R.
Part number: 036 905 205 F. 036 905 205 J.
Breaker cam angle: 44°-50°.
The angle of the closed state of the breaker contacts: 53±3%.
Gap between breaker contacts, mm: 0.45.
Contact pressure, gf: 380-500.
Capacitor capacity, μF: 0.22.
Initial ignition advance angle before TDC at crankshaft speed of 950 rpm and disconnected hose o? of vacuum ignition advance regulator: 10°*.
*For engines with numbers up to 10640, the initial ignition advance angle before TDC is 5°.
Ignition coil
Brand and type: Bosch KW 12 V.
Primary winding resistance. Ohm: 1.7-2.1.
Secondary winding resistance, kOhm: 7-12.
Preliminary resistance. Ohm: 0.9U.05.
Spark plugs
Brand: Bosch W 175T 30; Beru 174/14/3A; Champion N7Y
Gap between electrodes, mm: 0.6-0.7