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techtalk:ih:oil05 [2019/06/16 03:21] hippysmack [Rocker arm / Valve oiling] |
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| - | [[:techtalk:menu|{{ :techtalk:gototechnicalmenu.jpg|}}]] | ||
| - | ====== IH: Oiling & Lubrication ====== | ||
| - | ====== Engine Oil Routes ====== | ||
| - | ====== Right Crankcase Feed Galley ====== | ||
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| - | ====== Top End Oiling ====== | ||
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| - | ===== Rocker Arm / Valve Oiling ===== | ||
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| - | | Exhaust valve squirter. ((photo by jmmarks70 of the XLFORUM http://xlforum.net/forums/showthread.php?t=1774605)) | | ||
| - | |{{: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. \\ | ||
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| - | | Front rocker box oiling. | | ||
| - | |{{:techtalk:ih:oil:71-85_rocker_box_oiling_by_sc72.jpg?direct&250|}}| | ||
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| - | | Rocker Boxes on 69 model. ((photos by Arcturus of the XLFORUM http://xlforum.net/forums/showthread.php?t=1304674&page=11)) || | ||
| - | |{{:techtalk:ih:oil:69_rocker_boxes_1_by_arcturus.jpg?direct&300|}}|{{:techtalk:ih:oil:69_rocker_boxes_2_by_arcturus.jpg?direct&300|}}| | ||
| - | ====== Bottom End Oiling ====== | ||
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| - | ===== Pinion shaft and Crank Pin ===== | ||
| - | |||
| - | ===== Cam Cover Bushings ===== | ||
| - | ===== Cam Cover \ Gasket ===== | ||
| - | ====== Case Oiling and Drainage ====== | ||
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| - | | 73-Up right case half ((photo by ironheadjunkie of the XLFORUM http://xlforum.net/forums/showthread.php?t=1421916&page=2)) | | ||
| - | |{{:techtalk:ih:engmech:right_case_half_24559-73_by_ironheadjunkie.jpg?direct&300|}}| | ||
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| - | ===== Splash ===== | ||
| - | ===== Oil Pump Scavenge ===== | ||
| - | See also the [[techtalk:ih:oil03|IH Oil Pump]] section of the Sportsterpedia. \\ | ||
| - | ==== '77 and Later Cases ==== | ||
| - | The "drain plug" on the bottom of the case is simply a threaded plug that caps the oil scavenging passageway. ((bobbystat of the XLFORUM http://xlforum.net/forums/showthread.php?t=1950691)) \\ | ||
| - | The MoCo drilled from the bottom of the case to the horizontal oil passage in the gearcase. \\ | ||
| - | This connects the crankcase sump oil to the scavenge port of the oil pump and the hole is plugged on the bottom. \\ | ||
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| - | From inside the case with the plug removed from the scavenge passage; \\ | ||
| - | In the second pic below, you can see that the threads, from the tap, have been machined farther up into this hole. \\ | ||
| - | This is the oil passage from the sump to the scavenge pump. \\ | ||
| - | Oil from cylinder drains, crankpin, pushrods and cam chest that collects in the sump is fed to the pump by crankcase pressure and pump suction through this hole. \\ | ||
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| - | | Scavenge passage on 77 engines ((photos by bobbystat of the XLFORUM http://xlforum.net/forums/showthread.php?t=1950691)) ||| | ||
| - | |{{techtalk:ih:oil:1977_case_drain_plug_1_by_bobbystat.jpg?direct&300|}}|{{techtalk:ih:oil:1977_case_drain_plug_2_by_bobbystat.jpg?direct&300|}}|{{:techtalk:ih:oil:77_and_up_case_scavenging_by_bobbystat.jpg?direct&300|}}| | ||
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| - | ===== Gravity ===== | ||
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| - | \\ | ||
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| - | [[:techtalk:menu|{{:techtalk:gototechnicalmenu.jpg|}}]] | ||
