Fuel system data (VW Golf 1)

Fuel pump type

• Carburetor engine - Diaphragm, with mechanical drive
• Fuel Injected Engines - Electric, Fuel Immersed

Applicable carburetors

• Engine type - Carburetor used
• FA/GG/FJ 37 kW (1974-84) - Solex 34 PICT-5
• GG 37 kW (1981-84) - Solex 31 PIC-6
• GF 44 kW (1980-84) - Solex 34 PIC-5
• FH/FD51 kW (1974-75) - Solex 34 PICT-5
• FH/FD 63 kW (1974-75) - Zenith 2B2
• JB 51 kW (1977-80) - Solex 34 PICT-5
• JB 51 kW (1980-83) - Zenith 1B3
• GH 51 kW (1979-81) - Zenith 1B3
• FP/FT 55/51 kW (1975-78) - Solex 34 PICT-5
• FR 63 kW (1975-78) - Zenith 2B2
• FR 63 kW (1978–83) — Zenith 2B5
• EW 55 kW (since 1983) — Pierburg 2E2
• EX 66 kBt(c 1983) — Pierburg 2E2

System injection fuel

• EG 81 kW (1979-82) - Bosch K-Jetronic
• DX 82 kW (since 1982) - Bosch K-Jetronic

General adjustment data for carburetors

Solex 31 PIC-6

• Starting clearance of the air damper - 2.0±0.2 mm
• Increased idle speed - 2400±100 rpm
• Fuel level in the float chamber - 19.5±1 mm
• Accelerator pump capacity (cm³/cycle) — 0.9±0.15

Soiex 34 PIC-5

• Starting clearance of the air damper - 2.0±0.2 mm
• Increased idle speed - 2600±100 rpm
• Fuel level in the float chamber - 19.5±1 mm
• Accelerator pump capacity (cm³/cycle) — 0.7±0.15

Solex 31 PICT-5

• Starting clearance of the air damper - 4.3±0.15 mm
• Increased idle speed - 2600±50 rpm
• Fuel level in the float chamber 19 5±1 mm
• Accelerator pump capacity (cm³/cycle) — 1.1±0.15

Solex 34 PICT-5

Air damper starting clearance:

• 1.1 l - 3 0±0.2 mm
• 1.5 l (1457 cm³) — 3.2±0.5 mm
• 1.5 l (1457 cm³), mech. gearbox - 4.6±0.15 mm
• 1.5 l (1457 cm³), automatic, trans - 3.8±0.15 mm
• 1.6 l, fur. gearbox - 4.4±0.15 mm
• 1.6 l, automatic, trans - 4.0±0.15 mm

Increased idle speed:

• 1.1 l - 2600±50 rpm
• All other engines - 2400±50 rpm
• Fuel level in the float chamber - 18±1 mm
• Accelerator pump capacity (cm³/cycle) — 1.1±0.15

Zenith 1B3

• Starting clearance of the air damper - 4.3±0.15 mm
• Increased idle speed:
• Manual transmission - 3200±50 rpm
• Automatic transmission - 3400±50 rpm
• Accelerator pump capacity (cm³/cycle) — 0.9±0.15

The original text is available on the website VWmanual.ru

Zenith 2B2

• Air damper starting clearance:
• 1.5 l — 3.5±0.2 mm
• 1.6 l (from September 1975 to July 1977) — 4.5±0.15 mm
• 1.6 l (from May 1978 to August 1979) — 3.15±0.15 mm
• Increased idle speed:
• Manual transmission - 3200±50 rpm
• Automatic transmission - 3400±50 rpm
• Float level:
• Primary chamber - 28±0.5 mm
• Secondary chamber - 30±0.5 mm
• Accelerator pump capacity (cm³/cycle):
• 027 129 017T/015E — 0.9±0.15
• 027 129 023K — 1.3±0.15

Zenith 2B5

• Air damper starting clearance:
• Manual transmission - 3.9 ±0.15 mm
• Automatic transmission - 3.7 ±0.15 mm
• Increased idle speed:
• Manual transmission - 3400±50 rpm
• Automatic transmission - 3600±50 rpm
• Float level:
• Primary chamber - 28±0.5 mm
• Secondary chambers - 30±0.5 mm
• Accelerator pump capacity (cm³/cycle) — 1.0±0.15

Pierburg 2E2

• Air damper starting clearance:
• Primary chamber - 2.2±0.15 mm
• Secondary chamber - 5.8±0.15 mm
• Initial (basic) adjustment of the throttle mechanism:
• Dimension "E" - 0.40±0.1 mm
• Size "F" - 1.00±0.1 mm
• Increased idle speed - 3000±200 rpm
• Accelerator pump capacity (cm³/cycle) — 1.0±0.15

Tightening torques for threaded connections (kgm)

• Fuel Pump Mounting Screws - 2.0
• Carburetor mounting nuts - 2.5
• Intake Manifold Fastening Nuts - 2.5