Accelerator and throttle cables - removal, refitting and adjustment . 10 Accelerator pedal - removal and refitting Air cleaner element - renewal Air cleaner unit - removal and refitting Automatic air cleaner temperature control - testing Carburettor (1.05 litre engine) - adjustments Carburettor (1.3 litre engine) - adjustments Carburettor (1.6 & 1.8 litre engines) - adjustments Carburettor - overhaul Carburettor - removal and refitting Choke cable (1.05 litre engine) - removal, refitting and adjustment . 12 Exhaust system - inspection, removal and refitting Fuel filler gravity valve - removal, testing and refitting Fuel gauge sender unit - removal and refitting Fuel pump - testing, removal and refitting Fuel reservoir - removal and refitting Fuel tank - removal and refitting General information and precautions Inlet and exhaust manifolds - removal and refitting Inlet manifold preheating - testing Specifications Air cleaner Type Element type Element application: 1.05 litre 1.3 litre 1.6 litre 1.8 litre Automatic air temperature control Renewable paper Champion Wl01 Champion W102 Champion U508 Champion U508 Fuel pump Type: 1.05 and 1.3 litre 1.6 and 1.8 litre Mechanical, diaphragm, operated by plunger from camshaft Mechanical, diaphragm, operated by eccentric on intermediate shaft 4A Fuel filter Type Champion L104 Carburettor - 1.05 litre Pierburg/Solex 31 PIC-7 Type Venturi Main jet Air correction jet with emulsion tube Idling fuel jet Idling air jet uxiliary fuel jet Auxiliary air jet Enrichment (primary/secondary) Injection capacity (cc/stroke) Float needle valve Float needle valve washer thickness Fast idle speed Choke valve gap Throttle valve gap smooth running detent Idle speed CO content % Downdraught with manual or automatic choke 23 mm X117.5 115 Z 45 135 32.5 130 70/70 1.00 ± 0.15 1.5 2.0 mm 2600 ± 100 rpm 1.8 ± 0.2 mm 2.5 ± 0.3 mm 950 ± 50 rpm 1.0 ± 0.5 1081 VW Golf & Jetta 4A•2

Fuel and exhaust systems - carburettor models Carburettor - 1.05 litre (continued) Pierburg/Solex 1B3 Venturi Main jet Air correction jet Idling fuel/air jet Pump injection tube Needle valve Accelerator pump capacity (cc/stroke) Choke valve gap Fast idle speed Idle speed CO content % Weber 32 TLA Venturi Main jet: Code 030 129 016 Code 030 129 016 D Air correction jet: Code 030 129 016 Code 030 129 016 D Emulsion tube Idling fuel jet Idling air jet: Code 030 129 016 Code 030 129 016D Auxiliary fuel jet (code 030 129 016D) Auxiliary air jet (code 030 129 016D) Pump injection tube Needle valve Needle valve washer thickness Accelerator pump capacity (cc/stroke) Choke valve gap (pull-down): Without vacuum With 300 mbar vacuum Choke valve gap (wide open kick): Code 030 129 016 Code 030 129 01 6D Float level Fast idle speed Idle speed CO content % 23 mm 105 57.5 50/130 32.5/150 1.5 1.0 ± 0.15 1.8 ± 0.2 mm 2000 ± 100 rpm 800 ± 50 rpm 2.0 ± 0.5 22 mm 105 102 80 100 F96 47 110 145 30 170 0.35/0.35 1.75 0.75 mm 1.05 ± 0.15 2.5 ± 0.2 mm 2.0 ± 0.2 mm 2.0 ± 0.5 mm 2.5 ± 0.5 mm 28.0 ± 1.0 mm 2000 ± 100 rpm 800 ± 50 rpm 2.0 ± 0.5 Carburettor - 1.3 litre Pierburg/Solex 2E3 Type Venturi Main jet Air correction jet with emulsion tube Idling fuel/air jet Full throttle enrichment Pump injection tube diameter Choke cover code Injection capacity (cc/stroke) Locking lever clearance Full throttle enrichment - height above atomiser Choke valve gap Fast idle speed Idle speed C0 content % Twin progressive choke, downdraught with automatic choke Stage I 19 X95 120 45/130 0.35 mm 276 1.0 ± 0.15 0.4 ± 0.15 mm 12.0 mm 2.0 ± 0.1 mm 2000 ± 100 rpm 800 ± 50 rpm 2.0 ± 0.5 Stage II 23 X110 130 95 -

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