Differences
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techtalk:evo:oil01 [2019/06/22 17:02] hippysmack [Oil Pump Feed] |
techtalk:evo:oil01 [2019/06/24 22:31] hippysmack [Oil Tank Pressure] |
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| ===== Crankcase Pressure ===== | ===== Crankcase Pressure ===== | ||
| + | See also [[techtalk:ref:engmech04|Evo Crankcase Pressure and Engine Breathing]] in the REF section of the Sportsterpedia. \\ | ||
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| Crankcase air pressure is mainly generated by the up and down movement of the pistons. \\ | Crankcase air pressure is mainly generated by the up and down movement of the pistons. \\ | ||
| The downstroke of the piston causes the volume underneath the pistons to decrease which puts pressure on the oil in the sump. ((cjburr of the XLFORUM http://xlforum.net/forums/showthread.php?t=73243&page=3)) \\ | The downstroke of the piston causes the volume underneath the pistons to decrease which puts pressure on the oil in the sump. ((cjburr of the XLFORUM http://xlforum.net/forums/showthread.php?t=73243&page=3)) \\ | ||
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| See the full article, [[techtalk:ref:oil04#oil_tank_pressure|Oil Tank Pressure]], in the REF section of the Sportsterpedia. \\ | See the full article, [[techtalk:ref:oil04#oil_tank_pressure|Oil Tank Pressure]], in the REF section of the Sportsterpedia. \\ | ||
| There should not be any noticeable pressure in the oil tank although it does transfer pressure. \\ | There should not be any noticeable pressure in the oil tank although it does transfer pressure. \\ | ||
| + | The oil tank vent line to the cam chest allows the pump to send the oil to the tank without pressurizing the inside of it and blowing the cap off. ((cjburr of the XLFORUM http://xlforum.net/forums/showthread.php?t=59421&highlight=piston+oiler&page=68)) \\ | ||
| + | It is not there to vent the cam chest, the breathers do that. \\ | ||
| **During normal operation**; \\ | **During normal operation**; \\ | ||
