Part A: Carburetor Engines
General part
System Type - Rear-mounted fuel tank, mechanical fuel pump and temperature-controlled air cleaner
Fuel tank capacity: 61 l
Fuel octane rating is 98 (minimum) or "4-star" (see also section 26)
Fuel pump
Operating principle - Mechanical pump with camshaft drive
Pressure - 0.25-0.36 bar
Air cleaner 1.3 and 1.6 — Champion W103
1.8 — Champion U512
Carburetor GM Varajet II
Throttle body diameter:
- Step 1 - 35.0 mm
- Step 2 - 46.0 mm
Air throat diameter - 28.0 mm
Main jet:
- 1.3 — 201
- 1.6 — 204
Partial Load System Needle Valve - 1.51
Float weight - 5.6 g
Upper float position (gap between top surface and flange) — 4.5-6.5 mm
Air damper clearances (automatic choke - see text):
- A (lowered flap clearance) — 2.8-3.4 mm
- IN (fast idle) — 2.3-2.8 mm
- WITH (wide open throttle) — 9.5-10.5 mm
- Air damper clearance (manual choke) — 2.8-3.4 mm
- Accelerator pump plunger clearance - 7.8-8.2 mm
The clearance of the air valve lever at the rod is 0.1-0.3 mm
| Carburetor Pierburg 2E3 - engine 1.3 | Primary | Secondary |
| Air throat diameter | 20 mm | 24 mm |
| Main jet | X97.5 | X112.5 |
| Air jet | X80 | X100 |
| Emulsion tube code number | 88 | 60 |
| Partial load mixture enrichment channel | 0.5 mm | - |
| Pre-spray diameter | 8 mm | 7 mm |
| Diameter of the mixture outlet channel opening | 2.5 mm | 3.0 mm |
| Idle speed system fuel jet | 37,5 | - |
| Idle air system jet | 130 | - |
| Mixture enrichment jet | - | 105-125 |
| Float needle valve diameter | 1.5 mm | - |
| Upper float position | 28-30 | - |
| Damper lowering mechanism code | 55 | - |
| Damper lowering mechanism code | 59 | - |
| Throttle clearance at fast idle: | ||
| Manual gearbox | 0.8-0.9 mm | - |
| Automatic transmission | 1.1-1.2 mm | - |
| Air damper clearance: | ||
| Manual gearbox | 1.7-2.1 mm | - |
| Automatic transmission | 2.1-2.5 mm | - |
| Accelerator pump flow (cm³/stroke): | ||
| Manual gearbox | 0.38-0.62 mm | - |
| Automatic transmission | 0.18-0.42 mm | - |
| Carburetor Pierburg 2E3 - engine 1.6 | Primary | Secondary |
| Air throat diameter | 20 mm | 24 mm |
| Main jet | X95 | X105 |
| Air jet | X110 | X80 |
| Emulsion tube code number | 88 | 51 |
| Partial load mixture enrichment channel | 0.55 mm | - |
| Pre-spray diameter | 8 mm | 7 mm |
| Diameter of the mixture outlet channel opening | 2.5 mm | 3.0 mm |
| Idle speed system fuel jet | 42,5 | - |
| Idle air system jet | 132,5 | - |
| Mixture enrichment jet | 85-105 | - |
| Float needle valve diameter | 1.5 mm | - |
| Upper float position | 28-30 | - |
| Throttle clearance at fast idle: | ||
| Manual gearbox | 0.8-0.9 mm | - |
| Automatic transmission | 1.1-1.2 mm | - |
| Air damper clearance: | ||
| Manual gearbox | 1.7-2.1 mm | - |
| Automatic transmission | 2.1-2.5 mm | - |
| Accelerator pump flow (cm³/stroke): | ||
| Manual gearbox | 0.38-0.62 mm | - |
| Automatic transmission | 0.18-0.42 mm | - |
| Adjustment data | Manual transmission | Automatic transmission |
| Idle speed | 900-950 rpm | 800-850 rpm |
| Fast idle: | ||
| Varajet II: | ||
| 1.3 with automatic choke | 2150-2250 rpm | 2550-2650 rpm |
| 1.3 with manual choke | 2500 rpm | 2600 rpm |
| 1.6 | 2050-2150 rpm | 2250-2350 rpm |
| Pierburg 2E3 | 2100-2500 rpm | 2400-2800 rpm |
| CO content in exhaust at idle | 1,0-1,5% | 1,0-1,5% |
Tightening torque (Nm)
Fuel pump nuts:
- 1.3 — 20
- 1.6 — 15
Carburetor mounting nuts:
- 1.3 — 20
- 1.6 — 15
Part B: Injection Engines
General part
System type - With rear fuel tank and LE Jetronic injection system
Fuel tank capacity: 61 l
Fuel octane rating is 98 (minimum) or "4-star" (see also section 26)
Air purifier - Champion U511
Fuel pump
Type - Electric pump
Pressure - 0.25 bar
Fuel filter — Champion L201
Adjustment data
Idle speed:
- Manual transmission - 900-950 rpm
- Automatic transmission 800-850 rpm
- The CO content in the exhaust at idle speed is 0.2-0.5%
Tightening torque (Nm)
Fuel injectors - 32
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