Commissioning after engine overhaul Pressurising an engine affords the following advantages: D All engine parts are lubricated before engine start; inside the bearings a lubricating film can build up as early as after the first few turns of the crankshaft, which prevents damage to the bearing races. D Loss of oil, be it the result of excessively large bearing play or leaks from the crankcase or from crank- case bores which may not be plugged, can be recognised immediately. For this purpose mount the en- gine on a dolly, take off the oil pan and install a suitable oil collector under the crankcase in such a way that the bearings are visible. Execution of pressurisation:
At least 30 % of the overall oil quantity is pressed from the pressurisation container into the engine oil cir- cuit. The operating pressure serves as a yardstick for the pressure to be injected. This must not be ex- ceeded. The pressurisation container is connected up to the engine’s oil circuit at the oil filter head (screw plug). 4562 15