Characteristics of ignition timing of the Bosch ignition distributor of the 1.1 dm³ engine
A - centrifugal regulator; B – vacuum regulator
The Bosch contact ignition system consists of a battery, ignition coil, distributor with breaker and spark plugs. Firing order: 1-2-4-3. Color code: white.
Distributor
| Brand | Bosch |
| Drive | from the camshaft |
| Direction of rotation of the rotor | counterclockwise when viewed from above |
| Gap between breaker contacts | 0.4 – 0.5 mm |
| Angle of the closed state of the breaker contacts | 48 – 52° |
| Capacitor capacity | 0.2 μF |
Initial ignition advance
Engine code | Ignition timing before TDC (2°) | |
Ethylated Super | Unleaded. | |
GSG | 6 | 2 |
JLA | 6 | 2 |
JLB | – | 2 |
JBA | 15 | 15 |
JBB | 7 | 7 |
GLB | 12 | 12 |
Attention! When checking on a stand (ignition distributor removed), the engine speed values must be reduced by half. When checking the distributor installed in the car, the value of the initial ignition advance angle must be added to the ignition advance value.
Ignition coil
| Brand | Bosch, Femsa, Polmot or Lucas |
| Primary winding resistance | 1.2 – 1.4 Ohm |
| Secondary winding resistance | 5 – 9 kOhm |
| Voltage on secondary winding, min | 23000 V |
Spark plugs
| Brand and type: | |
| – engines with a working volume of 1.1 and 1.3 dm³ | Motorcraft AGRF 22 or Bosch HR6DC |
| – engines with a working volume of 1.3 dm³, manufactured from 9/88 | Motorcraft AGRF 22C1 or Bosch FR6DCX |
| Gap between electrodes: | |
| – Motorcraft AGRF spark plugs | 22 – 0.75 mm |
| – Bosch HR6DC spark plugs | 0.7 mm |
| – Motorcraft AGRF 22C1 spark plugs | 1.0 mm |
| – Bosch FR6DCX spark plugs | 1.1 mm |
This article was borrowed from the website [FordBook]