Model car ignition system «315», «316» (from model year 1981) And «318i» contactless TSZi. The control pulses to the switch are supplied from a proximity sensor located in the ignition distributor. The vacuum regulator of the ignition distributor corrects the angle of advance and delay of ignition.
Cylinder firing order: 1-3-4-2.
Ignition coil
Terminal markings: «15», «+», «1», «-», «4» to the central contact of the ignition distributor.
Brand and type of ignition coil of the contact ignition system: Bosch K 12V 0221 119 035.
Primary winding resistance, Ohm: 2.9-3.4.
Note. Model car ignition system «316» (before MY 1980), «318», «320», «320i» can be equipped with a Bosch KW 12V 0221 119 017 ignition coil, provided that the additional resistance is set to 0.9±0.05 Ohm. Primary winding resistance, Ohm: 1.7-2.1.
Brand and type of ignition coil of the non-contact ignition system: Bosch 0221 122 319.
Distributor
Ignition distributor with centrifugal shaft speed limiter integrated in the rotor (no more than 6600 rpm) Bosch company.
Resistance of the interference suppression resistor of the rotor, kOhm: 5. Direction of rotation of the roller:
- contact ignition distributor: right;
- sensor-distributor of contactless ignition system: left.
Types of distributors or sensors-distributors of ignition
Characteristics of the distributor of the contact ignition system
Breaker cam angle, degrees: 59-65.
Gap between breaker contacts, mm: 0.35.
Breaker contact pressure, g: 500-630.
Capacitor brand and type: Bosch 1 237 330 295.
Capacitor capacitance, uF: 0.18-0.22.
Insulation resistance, kOhm, not less than: 200.
Initial ignition timing up to TDC: 3°.
The angle of the closed state of the breaker contacts, degrees: 66-72.
Characteristics of the sensor-distributor of the non-contact ignition system
The working area of the centrifugal ignition timing regulator according to the frequency of the crankshaft, rpm:
- «316»: 1250-5500;
- «318i»: 1000-3000.
The maximum ignition timing provided by the centrifugal regulator, degrees, along the crankshaft:
- «316»: 24;
- «318i»: 15.
The working area of the vacuum regulator with ignition advance, mm R.St. («316» And «318i»): 200-300.
The maximum ignition advance angle provided by the vacuum regulator, degrees, along the crankshaft («316» And «318i»): 11.
The working area of the vacuum regulator with an ignition delay, mm R.St. («316»): 360-500.
The maximum ignition delay angle provided by the vacuum regulator, degrees, along the crankshaft («316»): 8.
The gap between the projections of the screen and the contacts of the stator of the pulse generator, mm: 0.35-0.70.
Contactless ignition switch.
Make and type: Bosch 0 227 100 111.
Setting the ignition timing in dynamics
Spark plug
Thread of the screw part: M14x1.25.
Brand and type of spark plugs: «316», «318», «318i», «320»: Bosch W8D (W 145 T 30), Beru 14-8D (145/14/ZA), Champs N10Y; «3201» Bosch W7D (W175 T 30), Beru 200/14/3A, Campion N8Y.
Gap between electrodes, mm: 0.6.