Testing And Adjusting Specifications - Porsche 924 Workshop Manual

924
TESTING AND ADJUSTING SPECIFICATIONS
(1981 /1982 Models with Oxygen Sensor)
Test Step
Electric fuel pump
Delivery rate
Control pressure "cold"
(at ambient temperature)
Control pressure "warm"
System pressure
Test value
Adjusting value
Leak test
(engine warm)
Pressure after 10 min.
after 20 min.
Fuel injectors
Opening pressure
bar
Testing/ Adjusting
Specifications
at least 750 cc in 30 sec.
Diagram for warm-up regulator
Part No. 477 133 403
Bosch No. 0438. 140. 088
(kp/ cni)
t-t--t-t-++-t-t-t-11-t-+-+-+-t-+-r-t-t
3,o ......................... ....-. ......... ___ ,...._ ...............
3.4 ... 3.8 bar
4.5 . .. 5.2 bar
4.7 . .. 4.9 bar
Pressure accumu lato r 40 cc
at least 2.0 bar
at least 1.7 bar
2 .5 .. . 3.6 bar
Fuel Mixture
25
Special Instructions
Printed in Germany · X, 1982 Testing and Adjusting Specifications 25 · 4 a