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techtalk:ref:oil05b [2018/04/18 01:23] |
techtalk:ref:oil05b [2019/07/20 15:25] hippysmack [Running External Rocker Box Drains] |
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+ | [[:techtalk:menu|{{ :techtalk:gototechnicalmenu.jpg|}}]] | ||
+ | ====== REF: Oiling & Lubrication - Sub-05A ====== | ||
+ | ====== Running External Rocker Box Drains ====== | ||
+ | There were no oil returns on the old Axtel big bore (or the day) cylinders. \\ | ||
+ | So the oil return for the rocker boxes was piped externally. \\ | ||
+ | If a windage tray was used, you could return the oil behind that (staying away from the flywheels). ((Racepres of the XLFORUM http://xlforum.net/forums/showthread.php?t=2002736)) \\ | ||
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+ | Bringing the oil under the baffle or windage tray is the classic way to do it. \\ | ||
+ | It's done to cut down on oil drag on the wheels (although I've never been able to prove a power increase). ((aswracing of the XLFORUM http://xlforum.net/forums/showthread.php?t=2002736)) \\ | ||
+ | Rubbermount bikes don't have the issue since the oil drain holes dump into the cam chest. \\ | ||
+ | The outlet is in the case itself. \\ | ||
+ | The oil leaves the heads dumps into the case deck, drops down about an inch and then takes a 90° turn over to the cam box. \\ | ||
+ | Then the cam box inlet of the oil pump takes care of scavenging it. \\ | ||
+ | On my race bike, I have the oil tank mounted low, and the head drains go straight to the oil tank. \\ | ||
+ | Eliminates the entire need to pump it out of the motor. \\ | ||
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+ | {{:techtalk:ref:oil:external_rocker_box_drains_2_by_anachris.jpg?direct&300|}} ((photo by AnaChris of the XLFORUM http://xlforum.net/forums/showthread.php?t=2002736)) | ||
+ | {{:techtalk:ref:oil:external_rocker_box_drains_1_by_anachris.jpg?direct&300|}} ((photo by AnaChris of the XLFORUM http://xlforum.net/forums/showthread.php?t=2002736)) \\ | ||
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+ | [[:techtalk:menu|{{:techtalk:gototechnicalmenu.jpg|}}]] | ||
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