Intake Manifold Pressure
Remove the pipe plug in the intake manifold just below
the inlet air connection and install the intake manifold
pressure gauge.
Engine Blowby
Install the Part No. 3375150, 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.
Install a plug in the crankcase breather vent tube.
NOTE: A pressure gauge can be used to record the engine
blowby.
Minimum Gauge Capacity: 1270 mm H
2
0 [50 inches
H
2
0].
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 Procedure 8-02.
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 vari-
ation if required. The fuel temperature must be between
15.5°C and 48.9°C [60°F and 120°F] for accurate
measurement.
Engine Testing Engine Dynamometer - Install Engine (8-01)
N14 Page 8-13
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