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techtalk:ref:engmech07f [2020/10/04 22:44] hippysmack |
techtalk:ref:engmech07f [2023/12/26 21:26] (current) hippysmack |
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| [[:techtalk:menu|{{ :techtalk:gototechnicalmenu.jpg|}}]] | [[:techtalk:menu|{{ :techtalk:gototechnicalmenu.jpg|}}]] | ||
| - | ====== REF: Engine Mechanicals - Sub-07D ====== | + | ====== REF: Engine Mechanicals - Sub-07F ====== |
| \\ | \\ | ||
| ====== Liquid Drag vs Fluid Drag ====== | ====== Liquid Drag vs Fluid Drag ====== | ||
| ====== Liquid Drag ====== | ====== Liquid Drag ====== | ||
| - | This is an this example of 'liquid drag' (as opposed to fluid drag, our real life medium). ((Dr Dick of the XLFORUM http://xlforum.net/forums/showthread.php?t=1204854&page=2)) \\ | + | This is an this example of 'liquid drag' (as opposed to fluid drag, our real life medium). ((Dr Dick of the XLFORUM https://www.xlforum.net/forum/sportster-motorcycle-forum/sportster-motorcycle-era-specific-and-model-specific/ironhead-sportster-motorcycle-talk-1957-1985/122424-breather-diagrams/page2?t=1204854&page=2)) \\ |
| Consider a 5 gal pail of latex & paint mixer that gets powered from your electric hand drill. \\ | Consider a 5 gal pail of latex & paint mixer that gets powered from your electric hand drill. \\ | ||
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| ====== Fluid Drag ====== | ====== Fluid Drag ====== | ||
| - | |||
| Above, we've touched on the idea that oil in the flywheel cavity of the cases probably creates a drag on the rotating lower end, robbing power. \\ | Above, we've touched on the idea that oil in the flywheel cavity of the cases probably creates a drag on the rotating lower end, robbing power. \\ | ||
| And the amount of oil probably affects the amount of drag. \\ | And the amount of oil probably affects the amount of drag. \\ | ||
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| 77> engines deleted the timed open and closed breather valve as is in 76< motors. \\ | 77> engines deleted the timed open and closed breather valve as is in 76< motors. \\ | ||
| The camchest is always open to the flywheel cavity with a one way valve between the motor and the outside environment. \\ | The camchest is always open to the flywheel cavity with a one way valve between the motor and the outside environment. \\ | ||
| - | The slang term "FooFoo" comes from the annoying sound that it makes when it gets clogged up with oil residue. ((IronMick of the XLFORUM http://xlforum.net/forums/showthread.php?t=1332902&page=3)) | + | The slang term "FooFoo" comes from the annoying sound that it makes when it gets clogged up with oil residue. ((IronMick of the XLFORUM https://www.xlforum.net/forum/sportster-motorcycle-forum/sportster-motorcycle-era-specific-and-model-specific/ironhead-sportster-motorcycle-talk-1957-1985/128453-crankcase-breathing-cycle/page3?t=1332902&page=3)) |
