Fuel tank
Made from sheet steel, the fuel tank is mounted in front of the rear axle and is supported by two plates.
| Capacity | 70 dm3 |
| Location of the tank neck | on the right rear fender |
| Fuel type | gasoline leaded with an octane rating of 98 or unleaded with an octane rating of at least 95 |
Air filter
The air filter has a replaceable paper filter element housed in a plastic housing.
| Supply system: | |
| – 1.8 dm3 | Pierburg twin barrel carburetor |
| – 2.0 dm3 | twin barrel Weber carburetor |
| – engines with fuel injection system | electronic system EEC II or EEC IV |
Idle speed
| Engine 1.8 dm3 | 800±20 rpm |
| Engine 2.0 dm3 with carburetor: | |
| – OHC engine | 800 or 875 rpm |
| – DOHC engine: | |
| with manual transmission | 850±25 rpm |
| with automatic transmission | 875±25 rpm |
| Engine 2.0 dm3 with injection system: | |
| – OHC engine | 800 or 875 rpm |
| – DOHC engine | 875±50 rpm |
| V6 engine 2.4 in.3 | 850±50 rpm |
| V6 engine 2.8 in.3 | 850 rpm |
| V6 engine 2.9 in.3 | 850±50 rpm |
CO level at idle speed
| Engine 1.8 dm3 | 1,3% |
| Engine 2.0 dm3 with carburetor: | |
| – OHC engine | 0,75 – 1,50% |
| – DOHC engine | 1,0 ± 0,25% |
| 2.0 dm3 with injection system: | |
| – OHC engine | 0,5 – 1,0% |
| – DOHC engine | 1,0 – 1,5% |
| V6 engine 2.4 in.3 without catalyst | 0,5 – 1,0% |
| V6 engine 2.8 in.3 | 0,5 – 1,0% |
| V6 engine 2.9 in.3 with catalytic converter | 0,5 – 1,0% |
Air filter
| 1.8 dm3ONS (carburetor) | Champion W1 13 |
| 2.0 dm3 ONS (carburetor) | Champion W152 |
| 2.0 dm3 ONS (injection) | Champion U507 |
| 2.8 in.3OHV (injection) | Champion U507 |
Fuel filter
| 2.0 dm3 ONS (injection) | Champion L204 |
| 2.8 dm3 (injection) | Champion L204 |
Fuel pump
The mechanical diaphragm pump is driven by the intermediate shaft eccentric.
Fuel supply pressure: 24–41 kPa.
Vehicles with an injection system use an electric fuel pump with a flow rate of 0.8 l/min.
Carburetor Pierburg 2V
| diffuser diameter: | |
| – primary chamber | 23 mm |
| - secondary chamber | 26 mm |
| Jet size: | |
| - fuel, idle | 45 |
| - air, idling | 115 |
| - main primary | 107,5 |
| - main secondary | 130 |
Adjustments
| Fast idle speed (when engine warms up) | 1800±100 rpm (on the second - the highest step of the cam) |
| Vacuum air return device (starting) dampers | 3 mm |
| Throttle damper installation | 2±0.5mm |
| float level | not regulated |
| Setting automatic (starting) dampers | by label |
Carburetor Pierburg 2E3
First chamber | Second chamber | |
| Diffuser diameter, mm | 23 | 26 |
| Main dosing system: | ||
| - main fuel jet | 107,5 | 130 (135) |
| - air jet | 85 | 60 |
| Idle system: | ||
| - main fuel jet | 45 | – |
| - air jet | 115 (200) | – |
| Accelerator pump: | ||
| – nozzle diameter | 0,5 | – |
| – volume of supplied fuel for 10 cycles, cm3 | 11 | – |
| Start clearances: | ||
| - throttle valve | 0,85 | – |
| - air damper | 3,0 | – |
| Opening of the throttle valve of a cold engine at idle, mm | 4,2 | – |
| Fuel level in the float chamber, mm | 27,5 | |
| Needle valve opening, mm | 1,75 | |
| Cold engine idling speed, rpm | 1850 – 1950 | |
| Hot engine idle speed, rpm | 850 – 900 | |
| CO content,% | 1,0 – 1,5 | |
Weber 2V carburetor
First chamber | Second chamber | |
| Mixing chamber diameter, mm | 30 | 34 |
| diffuser diameter: | ||
| – 85HFCA and DA | 25 | 27 |
| – 85HFGA, HA, MA and NA | 23 | 25 |
| Jet size 85HFCA: | ||
| - main fuel jet | 112 | 135 |
| - air jet | 165 | 150 |
| – type of emulsion tube | F22 | F22 |
| - idle jet | 45 | 45 |
| Jet size 85HFDA: | ||
| - main fuel jet | 110 | 135 |
| - air jet | 160 | 150 |
| – type of emulsion tube | F22 | F22 |
| - idle jet | 45 | 45 |
| Jet size 85HFGA and HA: | ||
| - main fuel jet | 107 | 125 |
| - air jet | 180 | 160 |
| – type of emulsion tube | F59 | F59 |
| - idle jet | 45 | 50 |
| Sizes of jets 85HFMA: | ||
| - main fuel jet | 105 | 130 |
| - air jet | 200 | 160 |
| – type of emulsion tube | F59 | F59 |
| - idle jet | 45 | 50 |
| Sizes of jets 85HFNA: | ||
| - main fuel jet | 110 | 125 |
| - air jet | 180 | 160 |
| – type of emulsion tube | F59 | F59 |
| - idle jet | 450 | 50 |
Adjustments
| Vacuum damper return device (max): | |
| – 85HFCA | 9.0 mm |
| – 85HFDA | 8.0 mm |
| - all others | 7.5mm |
| Installing the bimetal spring cover: | |
| – 85HFCA, DA, HA, MA | by tag 85HFGA and NA |
| – 85HFGA and NA | 3 mm from support |
| float level | 7.5 - 8.5 mm |
Carburetor Weber 2V TLD
First chamber | Second chamber | |
| Mixing chamber diameter | 23 | 25 |
| Main fuel jet: | ||
| - Manual Transmission | 115 | 157 |
| - Automatic transmission | 112 | 157 |
| Air jet: | ||
| - Manual Transmission | 175 | 145 |
| - Automatic transmission | 210 | 145 |
| emulsion tube | F114 | F3 |
| idle speed: | ||
| - Manual Transmission | 850±25 rpm | |
| - Automatic transmission | 875±25 rpm | |
| Fast idle speed | 1800±50 rpm | |
| Fuel level in float chamber | 29.0±0.5mm | |
| CO content | 1,0 ± 0,25% | |
Fuel injection systems
| Type | Bosch |
| fuel pump type | electric rotary |
| Fuel pump outlet pressure | greater than 5 bar at 12 V without flow |
| System pressure | 2.5 bar |
Tightening torques
| Inlet pipeline - ONS | 17 - 21 Nm |
| Intake Manifold - V6: | |
| – I stage | 4 – 8 Nm |
| – II stage | 8 – 15 Nm |
| – III stage | 15 – 21 Nm |
| – IV stage | 21 – 25 Nm |
| – V stage (after verification) | 21 – 25 Nm |
| Pressure chamber to intake manifold (V6) | 7 – 10 Nm |
| An exhaust manifold: | |
| - HE IS WITH | 21 – 25 Nm |
| – V6 | 25 – 30 Nm |
| Mechanical pump bolts | 14 – 18 Nm |
| Fuel pipe to injection pressure regulator: | |
| - HE IS WITH | 15 – 20 Nm |
| – V6 | 10 – 12 Nm |
| Pressure Regulator Base Nut: | |
| - HE IS WITH | 20 – 25 Nm |
| – V6 | 15 – 20 Nm |
| Fuel line bolts (HE IS WITH) | 9 – 11 Nm |
| front exhaust flange nuts | 35 – 40 Nm |
| Clips and collars | 38 – 45 Nm |
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