1979 Porsche 928 Fuel Pump Delivery Rate

TESTING AND ADJUSTING SPECIFICATIONS FOR CIS ( 197 8/1979 Models Automatics)

Test

Specification

Electric fuel pump Delivery rate with 1 fuel pump with 2 fuel pumps at least 1120 cc/30 sec. at least 1360 cc/30 sec.

Control pressure "cold" (= ambient temperature)

Diagram for control pressure regulator Part No. 928.606.109, 02 Bosch No. 0438. 140. 053 Test vacuum 430 - 600 mbar (350 - 450 mmHg)

Remarks

Control pressure "warm"

Test with pressure (without vacuum)

Vacuum pump connected on intake connection of control pressure regulator, test pressure of 460

mmHg)

With

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