Air filter
Type - Replaceable paper element, with automatic air temperature control on most models
Filter element:
- Carburetor engines - Champion W102
- Engine with fuel injection system 1.6 liters - Champion U506
- All other fuel injected engines - Champion U501
Fuel system
Fuel pump:
- Carburetor engines - Mechanical, diaphragm, driven by an eccentric from the intermediate shaft
- Engine with fuel injection system - Electric fuel pump with circulating chamber
Working pressure on the carburetor engine - 0.35-0.40 bar
Fuel tank capacity
- All models except Coupe - 68 liters.
- Coupe - 70 l.
Carburetor system
Engine:
- RN and NE - Keihin I
- RU — Keihin II
Carburetor (Keihin I)
Type - Two-chamber with falling flow and mechanical damper
| Jets and appointments: | RN engine | NE engine |
| Increased idle speed | 3200±200 rpm | 3200±200 rpm |
| Accelerator pump injection | 0.78±0.12 cm3 /stroke | 0.78±0.12 cm3 /stroke |
| Air damper clearance | 4.6±0.15mm | 4.6±0.15mm |
| Idle frequency | 900±50 rpm | 900±50 rpm |
| CO content | 1.0-0.5% | 1.0-0.5% |
| Diffuser - Chamber 1/2 | 20/26 | 20/26 |
| Main jet - Chamber 1/2 | 108/150 | 110/150 |
| Correction air jet - Chamber 1/2 | 90/120 | 90/120 |
| Fuel jet idling | 52 | 52 |
| Idle air jet | 115 | 115 |
| Float Check Needle Valve | 2.5 | 2.5 |
Carburetor (Keihin II)
Type - Two-chamber with falling flow and mechanical damper
Jets and Applications - Engine EN:
- Increased idle speed - 3500±200 rpm
- Accelerator pump injection - 0.85±0.15 cm3 /stroke
- Air damper gap — 2.2±0.15 mm
- Idle speed — 900±50 rpm
- CO content - 1.0-0.5%
- Diffuser - Chamber 1/2 - 22/26
- Main jet - Chamber 1/2 - 100/140
- Correction air jet - Chamber 1/2 - 90/100
- Idle fuel jet - Chamber 1 - 50
- Idle Air Jet - Chamber 1 - 100
- Float regulator check needle valve - 2.5
- Outlet pipe - Chamber 1 - 40
- Enrichment - Chamber 1 - 35
Fuel injection system
Engine:
- PS (before 1989), DZ and KV - K-Jetronic
- PS (since 1989) and JN - KE-Jetronic
- PM — Mono-Jetronic
- NG - KE III-Jetronic
- FOR – KE-Motronic
- 7A - Multi-point injection (MPI)
DZ engine - K-Jetronic
Idle speed — 950±30 rpm
CO content — 1.3±0.2%
Increased idle speed:
- Switching frequency - 700 rpm
- Shutdown frequency - 1050 rpm
Limit speed of the fuel pump - 6500 - 6700 rpm
System pressure - 5.2 - 5.9 bar
Residual pressure (after 10 minutes) — 3.3 bar
PS engines (before 1989) and KV - K-Jetronic
Idle speed - 750-850 rpm
Current in the idle control circuit - 430-440 mA
CO content - 1.0-1.2%
System pressure - 5.4-6.2 bar
Residual pressure (after 10 minutes) — 3.4 bar
PM Engine - Mono-Jetronlc
Maximum speed - 6300 rpm
Idle speed - 750-950 rpm
CO content - 0.2-1.2%
System pressure - 0.8-1.2 bar
Residual pressure (In 5 minutes) minimum - 0.5 bar
Injector resistance - 1.2-1.6 Ohm
JN Engine - KE-Jetronic
Idle speed - 900±30 rpm
CO content - 0.3-1.2%
Increase idle speed:
- Switching frequency - 700 rpm
- Shutdown frequency - 1050 rpm
Maximum frequency (fuel pump relay) - 6270-6330 rpm
System pressure - 5.2-5.6 bar
Residual pressure - 2.6 bar
Injector injection pressure - 3.5-4.1 bar
PS engine (since 1989) - KE-Jetronic
Idle speed - 750-850 rpm
CO content - 0.3-1.2%
System pressure - 6.1-6.5bar
Residual pressure (after 10 minutes) — 3.4 bar
Injector injection pressure - 4.3-4.6 bar
Engine NG - KE III-Jetronic
Idle speed - 720-860 rpm
CO content:
- Lambda sensor disabled — 0.8±0.3%
- Lambda sensor on - 0.3-1.2%
Frequency limit (control unit) - 6500-6700 rpm
System pressure - 6.1-6.5 bar
Residual pressure:
- Ten minutes later - 3.5 bar
- Twenty minutes later - 3.4 bar
Injector injection pressure - 4.3-4.6 bar
Engine FOR - KE-Motronic
Idle speed - 780-900 rpm
CO content - 0.2-1.2%
Control current of CO content - 0-5 mA
Frequency limit - 6300-6500 rpm
System pressure - 6.1-6.5 bar
Residual pressure:
- Ten minutes later - 3.3 bar
- Twenty minutes later - 3.2 bar
Injector injection pressure - 3.7-4.8 bar
Engine 7A - Multipoint Injection (MPi)
Idle speed — 800±50 rpm
CO content - 0.75-0.25%
System pressure - 3.8-4.2 bar
Residual pressure:
- Ten minutes later - 3.2 bar
- Twenty minutes later - 3.0 bar
Tightening torques, Nm
- Front exhaust pipe installation - 30
- Fuel pump bolts - 20
- Fuel tank - 25
- Exhaust manifold - 25
- Exhaust pipe - 40
- Warm-up valve - 10
- Cold start valve - 10
- Fuel filter connection - 20
- Pipe measuring CO - 30
- Exhaust outlet to manifold - 35
- Lambda sensor to catalytic converter - 50
- Carburetor flange - 13
- Intake manifold - 25
- Intake to exhaust manifold hanger - 20
- Inlet air heater - 10
- Carburetor cover - 5
- Dimension pipe - 20
- Fuel start switch - 30
- Choke body - 20
- Diaphragm pressure regulator connection - 20
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