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techtalk:ih:oil01a [2024/02/06 22:26] hippysmack [Feed Oil Passages Through Pics] |
techtalk:ih:oil01a [2024/02/07 03:30] (current) hippysmack [Cam Cover Oiling] |
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| |Oil path of 85 style cam cover ((photo by billeuze of the XLFORUM https://www.xlforum.net/forum/sportster-motorcycle-forum/sportster-motorcycle-era-specific-and-model-specific/ironhead-sportster-motorcycle-talk-1957-1985/115252-cam-fitment-question-on-ih-help-me-out-plz?t=1103082))| | |Oil path of 85 style cam cover ((photo by billeuze of the XLFORUM https://www.xlforum.net/forum/sportster-motorcycle-forum/sportster-motorcycle-era-specific-and-model-specific/ironhead-sportster-motorcycle-talk-1957-1985/115252-cam-fitment-question-on-ih-help-me-out-plz?t=1103082))| | ||
| |{{:techtalk:ih:oil:85_cam_cover_1_by_billeuze_annotated_by_hippysmack.jpg?direct&300|}}| | |{{:techtalk:ih:oil:85_cam_cover_1_by_billeuze_annotated_by_hippysmack.jpg?direct&300|}}| | ||
| + | |||
| + | ===== Cam Cover \ Gasket ===== | ||
| + | |||
| + | | 76 cam cover oiling paths. ((photo by papphammar of the XLFORUM, annotated by Hippysmack https://www.xlforum.net/forum/sportster-motorcycle-forum/sportster-motorcycle-era-specific-and-model-specific/ironhead-sportster-motorcycle-talk-1957-1985/64242-1976-rebuild?t=401480)) | | ||
| + | |{{:techtalk:ih:oil:cam_cover_oil_path_by_papphammar.jpg?direct&300|}}| | ||
| + | |||
| ===== Rocker Box ===== | ===== Rocker Box ===== | ||
| Line 21: | Line 27: | ||
| But if you pull the lines off with the engine running you should be getting a good steady flow out of them. \\ | But if you pull the lines off with the engine running you should be getting a good steady flow out of them. \\ | ||
| + | ====== Right Crankcase Feed Galley ====== | ||
| + | The lifter oil feed galley is a hole located along the top of the case between both intake tappets. \\ | ||
| + | |||
| + | * The feed galley is responsible for carrying oil to the rocker boxes. | ||
| + | * It gets it's oil from the oil pump by routed holes in the cam cover. | ||
| + | * A hole is internally routed from the top to the bottom of the cover with a hole exiting in a corresponding hole in the case. | ||
| + | * The cam cover gets it's oil from the oil pump via intersecting holes between the bottom of the case and the cover. | ||
| + | * Feed oil is routed inside the cover but not to the gearcase. | ||
| + | * The hole in the middle of the case at the top intersects into the internal oil feed galley to the rocker box oil lines. | ||
| + | * Pressurized oil travels up the oil lines to the rocker arms. | ||
| + | * **This is the end point of static oil pump pressure to the top end**. \\ Gravity oil drains from the boxes thru the head / cylinder drains into the crankcase and down the pushrod tubes into the cam chest. \\ | ||
| + | |||
| + | | Oil feed on 76 XLCH ((photo by papphammar of the XLFORUM, annotated by Hippysmack https://www.xlforum.net/forum/sportster-motorcycle-forum/sportster-motorcycle-era-specific-and-model-specific/ironhead-sportster-motorcycle-talk-1957-1985/64242-1976-rebuild/page7?t=401480&page=7)) | | ||
| + | |{{:techtalk:ih:oil:oil_feed_passages_on_76_xlch_by_papphammar.jpg?direct&300|}}| | ||
| + | |||
| + | ====== Top End Oiling ====== | ||
| + | |||
| + | ===== Rocker Arm / Valve Oiling ===== | ||
| + | |||
| + | | Rocker arm shaft. ((photo by jmmarks70 of the XLFORUM https://www.xlforum.net/forum/sportster-motorcycle-forum/sportster-motorcycle-era-specific-and-model-specific/ironhead-sportster-motorcycle-talk-1957-1985/164952-rocker-box-help?t=1774605)) | Oil flow. ((photo by jmmarks70 of the XLFORUM - annotated by Hippysmack https://www.xlforum.net/forum/sportster-motorcycle-forum/sportster-motorcycle-era-specific-and-model-specific/ironhead-sportster-motorcycle-talk-1957-1985/164952-rocker-box-help?t=1774605)) | Exhaust valve squirter. ((photo by jmmarks70 of the XLFORUM https://www.xlforum.net/forum/sportster-motorcycle-forum/sportster-motorcycle-era-specific-and-model-specific/ironhead-sportster-motorcycle-talk-1957-1985/164952-rocker-box-help?t=1774605)) | | ||
| + | |{{:techtalk:ih:oil:rocker_arm_shaft_1_by_jmmarks70.jpg?direct&300|}}|{{:techtalk:ih:oil:rocker_arm_shaft_2_by_jmmarks70.jpg?direct&300|}}|{{:techtalk:ih:oil:exhaust_rocker_arm_by_jmmarks70.jpg?direct&300|}}| | ||
| + | |||
| + | ===== Rocker Box Oiling ===== | ||
| + | Oil travels in a passage between the two rocker arm shafts (big end). \\ | ||
| + | The oil line comes from underneath into one shaft bore on the pushrod side in each rocker box. \\ | ||
| + | There is a rifle drilled hole between the rocker arm shafts in each box that connects the two for oil passage. \\ | ||
| + | Each hole is plugged off on the outside of the box. \\ | ||
| + | |||
| + | | Front rocker box oiling. | Rocker Boxes on 69 model. ((photos by Arcturus of the XLFORUM https://www.xlforum.net/forum/sportster-motorcycle-forum/sportster-motorcycle-era-specific-and-model-specific/ironhead-sportster-motorcycle-talk-1957-1985/127322-my-1969-ch-big-bore-stroker-build-thread/page11?t=1304674&page=11)) || | ||
| + | |{{:techtalk:ih:oil:71-85_rocker_box_oiling_by_sc72.jpg?direct&250|}}|{{:techtalk:ih:oil:69_rocker_boxes_1_by_arcturus.jpg?direct&300|}}|{{:techtalk:ih:oil:69_rocker_boxes_2_by_arcturus.jpg?direct&300|}}| | ||
