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Engine Running 1. Start the engine with the test vials in place. 2. Run the engine until the top mark on one of the large graduated vials is obtained. 3. Turn engine off immediately. 4. Evaluate the individual return quantities. The maximum permissible difference between return quantities of the individual injectors, and the injector with the EXAMPLE Injector Graduated Vial Mark Content 1 5 marks, large vial 42 ml 2 2 mark, large vial 21 ml 3 2 mark, large vial 21 ml 4 Surround, large vial 8 ml Evaluation Injector #1 has excessive return quantity, replace the injector. Injectors #2, #3, #4 are OK. 5. Perform the running test again after the repair to assure no other injectors are identified. If the injectors pass the quantity test, continue with the diagnostic manual. STANDARD PROCEDURE PRIMING FUEL SYSTEM CAUTION: Cranking the engine for an extended NOTE: Should the vehicle run out of fuel, the fuel The fuel system must be primed if the fuel system has 1. With service completed on the fuel system. 2. Depress the fuel primer 20 consecutive times then open the bleeder screw on top of the housing to dispel trapped air. 3. Close the bleeder screw and continue the step above until the primer button becomes slightly harder to depress. 4. Turn the ignition to START and crank the engine a maximum of ten seconds. NOTE: If the engine does not start with in ten seconds, repeat the priming procedure. The engine will typ- 5. Tighten bleeder screw to 10.8 N·m (96 in.lbs.). 14 - 36 FUEL DELIVERY - 2.8L DIESEL KJ |