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