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PLEASE HELP!I have a real power problem, NO POWER on grades in my bus. I rebuilt the engine and it runs good, sounds good, doesn't smoke, but I can not get over 10 to 15 mph on a 4% grade. I have put in both new fuel and air filters and have checked the fuel return to the tank and it is flowing in excess of 1 gallon per min. I have checked the air pressure on the airbox to be zero at idle and 14 psi at 1800 rpm. Does the pressure increase with load? My manuel shows the sirbox pressure should be 24 psi at full load. I don't believe that these conditions are normal or are they? I am sure I should have more power than I am getting on grades. How can I check the turbocharger? I have never worked on one. Thanks for any help received. |
RV and bus conversion info since 1996.
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