Opel:: Vectra A:: Fuel and exhaust systems of models with the carburetor

5.1. Fuel and exhaust systems of models with the carburetor

General information

Capacity of the fuel tank	61 l
Octane number of the applied fuel:
– ethylated gasoline	98 RON
– unleaded gasoline	95 RON
Carburetor type (all models)	Pierburg 2E3

Air filter

Engine 14 NV

Idling turns	925 ± 25 rpm
Contents WITH on idling turns	0,5 – 1,5%
The accelerated idling turns	2200 – 2600 rpm
Gap of the air gate	1,5 – 3,5 mm
Decrease gate gap:
– small	1,7 – 2,1 mm
– big	2,5 – 2,9 mm
Fuel jet of idling	45
Air jet of idling	130
Camera	Primary	Secondary
Diameter of the diffuser	20,0 mm	24,0 mm
Main jet	X95	X110

Engine 16 SV

Idling turns:
– mechanical transmission	925 ± 25 rpm
– automatic transmission	825 ± 25 rpm (in the provision of "PARK" or "NEUTRAL"
Contents WITH on idling turns	0,5 – 1,5%
The accelerated idling turns	2000 – 2400 rpm
Gap of the air gate	1,5 – 3,5 mm
Decrease gate gap:
– till 1990:
• small	1,3 – 1,7 mm
• big	1,9 – 2,3 mm
– since 1990:
• small	1,5 – 1,7 mm
• big	2,0 – 2,2 mm
Fuel jet of idling	45
Air jet of idling	132,5
Camera	Primary	Secondary
Diameter of the diffuser	20,0 mm	24,0 mm
Main jet:
Till 1990	X95	X105
Since 1990	X92,5	X105

Engine 18 SV

Idling turns	925 ± 25 rpm
Contents WITH on idling turns	0,5 – 1,5%
The accelerated idling turns	1900 – 2300 rpm
Gap of the air gate	1,5 – 3,5 mm
Decrease gate gap:
– small	2,2 ± 0,2 mm
– big	3,3 ± 0,2 mm
Fuel jet of idling	42,5
Air jet of idling	132,5
Camera	Primary	Secondary
Main jet	107,5	125

Tightening moments

Nuts of fastening of a final collector	22 Nanometer
Nuts of fastening of an inlet collector	22 Nanometer
Bolts of fastening of a reception exhaust pipe to a final collector	25 Nanometer
Bolts of fastening of the exhaust system except flexible connections	25 Nanometer
Bolts of fastening of flexible connections of the exhaust system	12 Nanometer
Bolts of fastening of the fuel pump	18 Nanometer
Bolts of fastening of belts of the fuel tank	20 Nanometer