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 crankcase bores which may not be plugged, can be recognised immediately. For this purpose mount the engine 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. 4505 Execution of pressurisation:
At least 30 % of the overall oil quantity is pressed from the pressurisation container into the engine oil circuit. The operating pressure serves as a yardstick for the pressure to be injected. This must not be exceeded. The pressurisation container is connected up to the engine’s oil circuit at the oil filter head (screw plug, arrow). 4401 11