9. Fuel system with the carburetor

Technical characteristic

Fuel pump

Type

Mechanical, with the drive from the clown of an intermediate shaft through a pusher
Pressure created by the fuel pump on idling turns
0,20 – 0,40 bars
Productivity of the fuel pump on idling turns
0,75 l/min

STROMBERG 175 CDT carburetor

Main fuel jet
100
Spray needle
UC
Level of the needle valve
2,25 mm
Top provision of a float
18 – 19 mm
Idling turns
750 – 850 rpm
Turns of the accelerated idling
1600 – 1800 rpm
Contents WITH on idling turns
1,0±0,5%
Contents WITH on the accelerated idling turns
5 – 7%

PIERBURG 2E-E carburetor

Diameter of a tube of Venturi:
– primary camera
23 mm
– secondary camera
29 mm
Diameter of the diffuser:
– primary camera
29 mm
– secondary camera
34 mm
Main fuel jet:
– primary camera
X 110
– secondary camera
X 135
Main air jet:
– primary camera
92,5
– secondary camera
70
Idling jet
X 50
Air jet of idling
5
Level of the needle valve
2,5 mm
Top provision of a float
26,5 – 28,5mm
Idling turns
700 – 800 rpm
Contents WITH on idling turns:
– cars without catalyst
1,0 – 1,5%
– cars with the catalyst
Less than 0,5%

Fuel

Minimum admissible octane number:
– models with the Pierburg 2E-E carburetor:
   • cars without catalyst (RUF engine)
95 RON unleaded or 98 RON ethylated
   • cars with the catalyst
95 RON unleaded
– models with the Stromberg 175 CDT carburetor
Unleaded or 98 RON ethylated

Tightening moments

Nuts of fastening of the fuel tank
20 Nanometer
Nuts of fastening of the fuel level sensor
40 Nanometer