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techtalk:ref:oil04 [2019/11/14 02:31] hippysmack [Crankcase Pressure / Venting in the Oil Tank] |
techtalk:ref:oil04 [2020/10/04 18:16] hippysmack [Crankcase Pressure / Venting in the Oil Tank] |
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| ===== Crankcase Pressure / Venting in the Oil Tank ===== | ===== Crankcase Pressure / Venting in the Oil Tank ===== | ||
| + | See also [[techtalk:ref:oil10b|Oil Tank's Role vs Wetsumping]] in the Sportsterpedia. \\ | ||
| Air inside the tank doesn't get there because of CC pressure alone. \\ | Air inside the tank doesn't get there because of CC pressure alone. \\ | ||
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| In the drawings below, a syringe is used to example crankcase pressure being applied into the oil tank: \\ | In the drawings below, a syringe is used to example crankcase pressure being applied into the oil tank: \\ | ||
| - | {{:techtalk:ref:oil:oil_pressure_drawing_1a_by_hippysmack.jpg?direct&450|}} ((drawing by Hippysmack)) {{:techtalk:ref:oil:oil_pressure_drawing_4a_by_hippysmack.jpg?direct&450|}} ((drawing by Hippysmack)) | + | {{:techtalk:ref:oil:oil_pressure_drawing_1_by_hippysmack.jpg?direct&450|}} ((drawing by Hippysmack)) {{:techtalk:ref:oil:oil_pressure_drawing_4_by_hippysmack.jpg?direct&450|}} ((drawing by Hippysmack)) |
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| So, in essence, the oil tank acts as an oil / air separator like the breather valve but the air only expels the engine from the engine's breather vent. \\ | So, in essence, the oil tank acts as an oil / air separator like the breather valve but the air only expels the engine from the engine's breather vent. \\ | ||
| - | {{:techtalk:ref:oil:oil_pressure_drawing_2a_by_hippysmack.jpg?direct&450|}} ((drawing by Hippysmack)) | + | {{:techtalk:ref:oil:oil_pressure_drawing_2_by_hippysmack.jpg?direct&450|}} ((drawing by Hippysmack)) |
| - | {{:techtalk:ref:oil:oil_pressure_drawing_3a_by_hippysmack.jpg?direct&450|}} ((drawing by Hippysmack)) | + | {{:techtalk:ref:oil:oil_pressure_drawing_3_by_hippysmack.jpg?direct&450|}} ((drawing by Hippysmack)) |
| The piston movements in the HD engine are not in apposing positions to balance out the displacement of air. \\ | The piston movements in the HD engine are not in apposing positions to balance out the displacement of air. \\ | ||
