560SL (107.048) V8-5.6L (117.967) (1989)
Fuel Distributor: Pressure, Vacuum and Temperature Specifications
SYSTEM OPERATING PRESSURE
Cold or Warm ............................................................................................................................................................................. 90 - 93 psi. (6.2 - 6.4 bar)
LOWER CHAMBER PRESSURE
Normal Operating Temp. ..................................................................................................................... 5.8 psi. (0.4 bar) below measured system pressure
Idling 68°F (20°C) .................................................................................................................. approx. 7.5 psi. (0.5 bar) below measured system pressure
Acceleration Enrichment 68°F (20°C) ............................................................................................................................................... min. 55 psi. (3.8 bar)
Full Load Enrichment (Normal Temp) ....................................................................... approx. 7.5 psi. (0.5 bar) below Acceleration Enrichment pressure
Decel. Fuel Shutoff ...................................................................................................................................................................... Same as system pressure
Residual Pressure (After 30 Min.) .......................................................................................................................................................... 40.5 psi. (2.8 bar)
FUEL QUANTITY COMPARISON TEST VALUES
Maximum Difference At Idle [1] ........................................................................................................................................................................ .4 cc/min.
Maximum Difference At Partial Load [2] ....................................................................................................................................................... 4.0 cc/min.
Maximum Difference At Full Load [3] .......................................................................................................................................................... 10.0 cc/min.
[1] Air Flow Sensor Plate Depressed To Attain Approx. 4.0 cc/min.
[2] Air Flow Sensor Plate Depressed To Attain Approx. 30 cc/min.
[3] Air Flow Sensor Plate Depressed To Attain Approx. 100 cc/min.
FUEL INJECTORS
Fuel Injector Opening Pressure (New) ....................................................................................................................................... 62 - 66 psi. (4.3 - 4.6 bar)
Fuel Injector Opening Pressure (Used) .............................................................................................................................................. 53 psi. min. (3.7 bar)
FUEL PUMP
Fuel Delivery Volume [1] .................................................................................................................................................... approx. 1 liter withing 40 sec.
Fuel Pump Pressure [2] ............................................................................................................................................... Between 29 - 58 psi. (2 and 4 bar)
[1] Slightly more than 1 qt. withing 40 sec.
[2] Measured at fuel pump (M 3/1)