This illustration show the steps for Detroit DDC GHG17 heavy duty engine crankcase pressure test.
Related Contents
Check the engine crankcase pressure as follows:
1 Start the engine.
2 Run the engine and bring the engine coolant temperature to normal operating range, 88º to 96°C (19º to 205°F).
3 Install the crankcase pressure test adapter (W651589029100) on to the oil fill opening. Attach a water manometer, calibrated to read pressure as inches of H2O, on to the adaptor.
4 Run the vehicle to full load and rated speed with a loaded trailer or dyno.
5 Measure and record crankcase pressure.
6 Shut down the engine.
7 Remove the adaptor from the oil fill opening.
Note : Any tubing used to feed the manometer will artificially increase the crankcase pressure results.
8 The correct crankcase pressure should be less than 5 inches of H2O at full load. If the engine crankcase pressure is greater than 5 in. H2O
