Type: | |
– models with a 2.0 l engine with a Stromberg carburetor | TSZ |
– models with a 2.0 l engine with a Pierburg 2E-E carburetor | EZL |
– models with a 2.0 l engine with KE-Jetronic fuel injection system: | |
• late models | EZL |
• early models without a catalytic converter | TSZ |
– models with a 2.3 l engine with KE-Jetronic fuel injection system: | |
• late models | EZL |
• early models without a catalytic converter | TSZ |
Ignition coil
Models with TSZ ignition system: | |
– resistance of the primary winding | 0.5 – 0.9 Ohm |
– resistance of the secondary winding | 6 – 16 Ohm |
Models with EZL ignition system: | |
– resistance of the primary winding | 0.3 – 0.6 Ohm |
– resistance of the secondary winding | 8 – 13 Ohm |
Distributor
Type | Without breaker, crankshaft driven |
Ignition timing angle | Controlled by the ignition system |
Impulse sensor resistance (tSZ system only) | 500 – 700 Ohm |
Ignition timing angle
Models with EZL ignition system and Pierburg 2E-E carburetor: | |
- at idle speed | 11 – 15° before TDC |
– at 3200 rpm with vacuum, plug in adjustment socket in position "S" | 38 – 42° before TDC |
– at 3200 rpm with vacuum, plug in adjustment socket in position "N" | 38 – 42° before TDC |
– at 3200 rpm without vacuum, plug in adjustment socket in position "S" | 22 – 26° before TDC |
– at 3200 rpm without vacuum, plug in adjustment socket in position "N" | 15 – 19° before TDC |
Models with EZL ignition system and KE-Jetronic injection system: | |
- at idle speed | 8 – 12° before TDC |
– at 3200 rpm with vacuum, plug in adjustment socket in position "S" | 35 – 39° before TDC |
– at 3200 rpm with vacuum, plug in adjustment socket in position "N" | 35 – 39° before TDC |
– at 3200 rpm without vacuum, plug in adjustment socket in position "S" | 23 – 27° before TDC |
– at 3200 rpm without vacuum, plug in adjustment socket in position "N" | 17 – 21° before TDC |
Models with TSZ ignition system and KE-Jetronic injection system: | |
- at idle speed with vacuum, on leaded fuel | 12 – 18° before TDC |
- at idle speed with vacuum, on unleaded fuel | 7 – 13° before TDC |
– ignition timing at 4500 rpm without vacuum, on leaded fuel | 32° before TDC |
– ignition timing at 4500 rpm without vacuum, on unleaded fuel | 27° before TDC |
- vacuum ignition timing corrector at 4500 rpm | 8 – 12° before TDC |
Models with TSZ ignition system and Stromberg carburetor: | |
- at idle speed without vacuum, on leaded fuel | 10 – 16° before TDC |
– ignition timing at 4500 rpm with vacuum | 40 – 44° before TDC |
- vacuum ignition timing corrector at 4500 rpm | 8 – 12° before TDC |
(Publication taken from an online resource: MERCEDESMAN.ru)
Spark plugs
All models | Champion S9YC/CC |
Interelectrode gap | 0.8 mm |
Sensors
Crankshaft position sensor resistance | 600 – 1200 Ohm |
Coolant temperature sensor resistance: | |
– at a temperature of 80°C | 325 Ohm |
– at a temperature of 40°C | 1.2 kOhm |
– at a temperature of 0°C | 6 kOhm |
Resistance of the engine air temperature sensor: | |
– at a temperature of 80°C | 325 Ohm |
– at a temperature of 40°C | 1.2 kOhm |
– at a temperature of 0°C | 6 kOhm |
Tightening moments
| Spark plugs | 15 nm |