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techtalk:ref:engmech05g [2019/07/17 05:23] hippysmack ↷ Page name changed from techtalk:ref:oil05g to techtalk:ref:engmech05g |
techtalk:ref:engmech05g [2023/12/21 21:30] (current) hippysmack |
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| [[:techtalk:menu|{{ :techtalk:gototechnicalmenu.jpg|}}]] | [[:techtalk:menu|{{ :techtalk:gototechnicalmenu.jpg|}}]] | ||
| - | ====== REF: Oiling & Lubrication - Sub-05G ====== | + | ====== REF: Engine Mechanicals - Sub-05G ====== |
| ====== 86-90 Engine Breather Mod Using #4 Cam as an Oil Slinger ====== | ====== 86-90 Engine Breather Mod Using #4 Cam as an Oil Slinger ====== | ||
| - | Article by norseXL of the XLFORUM ((http://xlforum.net/forums/showthread.php?t=1930406&highlight=reed+valve)) \\ | + | Article by norseXL of the XLFORUM ((https://www.xlforum.net/forum/sportster-motorcycle-forum/sportster-motorcycle-motor-engine/sportster-motorcycle-bottom-end/179674-breathing-thru-the-cam?t=1930406&highlight=reed+valve)) \\ |
| This is an idea based from the breathing on the BMW Rotax twins. \\ | This is an idea based from the breathing on the BMW Rotax twins. \\ | ||
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| In drilling the hole in the cam: \\ | In drilling the hole in the cam: \\ | ||
| - | The chances of either carbide or HSS drills working well are not high. ((Ireeman of the XLFORUM http://xlforum.net/forums/showthread.php?t=1930406&highlight=reed+valve&page=3)) \\ | + | The chances of either carbide or HSS drills working well are not high. ((Ireeman of the XLFORUM https://www.xlforum.net/forum/sportster-motorcycle-forum/sportster-motorcycle-motor-engine/sportster-motorcycle-bottom-end/179674-breathing-thru-the-cam/page3?t=1930406&highlight=reed+valve&page=3)) \\ |
| They tend to walk over the required distance. A gun drill is good or EDM is best for this process. \\ | They tend to walk over the required distance. A gun drill is good or EDM is best for this process. \\ | ||
| You do not want to change to properties of the case hardening (which conventional even with coolant, drilling would do). \\ | You do not want to change to properties of the case hardening (which conventional even with coolant, drilling would do). \\ | ||
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| Without the plug, the air will not be forced to enter at a big radius/large centrifugal force. \\ | Without the plug, the air will not be forced to enter at a big radius/large centrifugal force. \\ | ||
| - | {{:techtalk:ref:oil:cam_breather_drawing_by_norsexl.jpg?direct&400|}} \\ | + | {{techtalk:ref:engmech:cam_breather_drawing_by_norsexl.jpg?direct&400|}} \\ |
| **Cam after drilling**: \\ | **Cam after drilling**: \\ | ||
| - | {{:techtalk:ref:oil:cam_breather_1_by_norsexl.jpg?direct&300|}} {{:techtalk:ref:oil:cam_breather_2_by_norsexl.jpg?direct&300|}} {{:techtalk:ref:oil:cam_breather_3_by_norsexl.jpg?direct&300|}} \\ | + | {{techtalk:ref:engmech:cam_breather_1_by_norsexl.jpg?direct&300|}} {{techtalk:ref:engmech:cam_breather_2_by_norsexl.jpg?direct&300|}} {{techtalk:ref:engmech:cam_breather_3_by_norsexl.jpg?direct&300|}} \\ |
| The hole in the outside end of the cam is for the breathing, it is the sole exit for the engine pressure. \\ | The hole in the outside end of the cam is for the breathing, it is the sole exit for the engine pressure. \\ | ||
