Engine Dynamometer - Install Engine (14-01) Section 14 - Engine Testing - Group 14 M11 Page 14-26 Intake Manifold Pressure Remove the pipe plug in the intake manifold just below the inlet air connection and install the intake manifold pres- sure gauge, Part No. ST-1273. Engine Blowby Install the Part No. 3822566, Engine Blowby Tool, to the breather on the rocker lever cover to measure engine crankcase pressure. Install a water manometer, Part No. ST-1111-3, to the engine blowby tool. NOTE: A pressure gauge can be used to record the engine blowby.
Blowby Specifications New, Rebuilt Engines* 30.5 cm H 2 0 [12 in H 2 0] Used Engines** 46.0 cm H 2 0 [18 in H 2 0] * Less than 160,000 km [100,000 mi] or 3600 hours. ** Over 160,000 km [100,000 mi] or 3600 hours. Fuel Rate The Part No. 3376375, Fuel Measuring instrument, is used during the performance check to measure fuel con- sumption. For more details, refer to ‘‘Engine Testing - General Information’’. Install the fuel measuring device as follows: The fuel return hose from the engine to the fuel measuring device (A). The fuel inlet hose to the fuel filter inlet (B). The return hose from the device (C) to the fuel tank. The fuel inlet hose to the device from the fuel tank suction line (D).
NOTE: Adjust fuel rate to compensate for temperature varia- tion if required. The fuel temperature must be between 15.5°C and 48.9°C [60°F and 120°F] for accurate measurement.