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techtalk:evo:oil02 [2024/01/05 00:20] hippysmack |
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You can see the oil path (channels from the filter to the engine). \\ | You can see the oil path (channels from the filter to the engine). \\ | ||
There is a plug on the outside case in the area of the filter. \\ | There is a plug on the outside case in the area of the filter. \\ | ||
- | The plugged hole is from where the MoCo drilled the oil passage to connect the outlet of the oil filter to the lifters. ((aswracing of the XLFORUM http://xlforum.net/forums/showthread.php?threadid=1652078)) \\ | + | The plugged hole is from where the MoCo drilled the oil passage to connect the outlet of the oil filter to the lifters. ((aswracing of the XLFORUM https://www.xlforum.net/forum/sportster-motorcycle-forum/sportster-motorcycle-motor-engine/sportster-motorcycle-bottom-end/153560-doing-my-560-cam-swap-and-have-a-couple?threadid=1652078)) \\ |
After they drill it, they stick a plug in it. \\ | After they drill it, they stick a plug in it. \\ | ||
There are other plugged holes like that on your motor where the drilling operation left a hole that had to be plugged. \\ | There are other plugged holes like that on your motor where the drilling operation left a hole that had to be plugged. \\ | ||
- | |On 91-99 engines, the oil feed galley is internal from \\ the filter pad. Oil travels to each lifter individually \\ from this cavity. ((photo by ehrgeiz of the XLFORUM http://xlforum.net/forums/showthread.php?t=654598&page=2))|Rifling hole for the feed galley is plugged outside \\ the case near the filter. ((photo by Hippysmack))| | + | |On 91-99 engines, the oil feed galley is internal from \\ the filter pad. Oil travels to each lifter individually \\ from this cavity. ((photo by ehrgeiz of the XLFORUM https://www.xlforum.net/forum/sportster-motorcycle-forum/sportster-motorcycle-motor-engine/sportster-motorcycle-engine-conversions/85487-ehrgeiz-s-stage-3-1250-build-thread/page2?t=654598&page=2))|Rifling hole for the feed galley is plugged outside \\ the case near the filter. ((photo by Hippysmack))| |
|{{:techtalk:evo:oil:1999_cam_chest_by_ehrgeiz.jpg?direct&300|}}|{{:techtalk:evo:oil:98_cam_chest_by_hippysmack.jpg?direct&300|}}| | |{{:techtalk:evo:oil:1999_cam_chest_by_ehrgeiz.jpg?direct&300|}}|{{:techtalk:evo:oil:98_cam_chest_by_hippysmack.jpg?direct&300|}}| | ||
- | |On 2000 and up engines, the oil feed galley is \\ external. Oil travels to each lifter individually from \\ this cavity. ((drummerboy4as of the XLFORUM, labeled by Hippysmack http://xlforum.net/forums/showthread.php?threadid=175003))|The rifling hole for the feed galley is plugged outside \\ the case near the filter. ((photo by Helibee of the XLFORUM http://xlforum.net/forums/showthread.php?threadid=1652078))| | + | |On 2000 and up engines, the oil feed galley is \\ external. Oil travels to each lifter individually from \\ this cavity. ((drummerboy4as of the XLFORUM, labeled by Hippysmack https://www.xlforum.net/forum/sportster-motorcycle-forum/sportster-motorcycle-motor-engine/sportster-motorcycle-engine-conversions/46850-another-nrhs-883-1250-conversion-thread?threadid=175003))|The rifling hole for the feed galley is plugged outside \\ the case near the filter. ((photo by Helibee of the XLFORUM https://www.xlforum.net/forum/sportster-motorcycle-forum/sportster-motorcycle-motor-engine/sportster-motorcycle-bottom-end/153560-doing-my-560-cam-swap-and-have-a-couple?threadid=1652078))| |
|{{:techtalk:evo:oil:2006_cam_chest_by_drummerboy4as.jpg?direct&300|}}|{{:techtalk:evo:oil:08_cam_chest_2_by_helibee.jpg?direct&300|}}| | |{{:techtalk:evo:oil:2006_cam_chest_by_drummerboy4as.jpg?direct&300|}}|{{:techtalk:evo:oil:08_cam_chest_2_by_helibee.jpg?direct&300|}}| | ||
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====== Bottom End Oiling ====== | ====== Bottom End Oiling ====== | ||
- | + | \\ | |
- | + | ||
====== Case Oiling and Drainage ====== | ====== Case Oiling and Drainage ====== | ||
===== 86-90 Engines ===== | ===== 86-90 Engines ===== | ||
{{:techtalk:evo:oil:86-90_sportster_oil_drainage_by_hippysmack.jpg?direct&300|}} ((drawing by Hippysmack)) | {{:techtalk:evo:oil:86-90_sportster_oil_drainage_by_hippysmack.jpg?direct&300|}} ((drawing by Hippysmack)) | ||
==== Gravity Drains ==== | ==== Gravity Drains ==== | ||
- | |||
* __**Gravity oil**__ (drained from rocker boxes and head/cylinder drainage) falls on moving parts and into the crankcase. | * __**Gravity oil**__ (drained from rocker boxes and head/cylinder drainage) falls on moving parts and into the crankcase. | ||
* Oil collected in the rocker box is returned to the crankcase through a passage in the cylinder and the head. | * Oil collected in the rocker box is returned to the crankcase through a passage in the cylinder and the head. | ||
Line 76: | Line 68: | ||
Tappet blocks are directional (rear exhaust shown below). \\ | Tappet blocks are directional (rear exhaust shown below). \\ | ||
{{:techtalk:evo:oil:tappet_block_1986-1990_sportster_pic1_by_robison_motorcycles.jpg?direct&300|}} ((photo courtesy of Ebay seller, Robison Motorcycles [[https://www.ebay.com/str/robisonmotorcycles?_trksid=p2047675.l2563|Link to Ebay Store]] )) {{:techtalk:evo:oil:tappet_block_1986-1990_sportster_pic2_by_robison_motorcycles.jpg?direct&300|}} ((photo courtesy of Ebay seller, Robison Motorcycles [[https://www.ebay.com/str/robisonmotorcycles?_trksid=p2047675.l2563|Link to Ebay Store]] )) \\ | {{:techtalk:evo:oil:tappet_block_1986-1990_sportster_pic1_by_robison_motorcycles.jpg?direct&300|}} ((photo courtesy of Ebay seller, Robison Motorcycles [[https://www.ebay.com/str/robisonmotorcycles?_trksid=p2047675.l2563|Link to Ebay Store]] )) {{:techtalk:evo:oil:tappet_block_1986-1990_sportster_pic2_by_robison_motorcycles.jpg?direct&300|}} ((photo courtesy of Ebay seller, Robison Motorcycles [[https://www.ebay.com/str/robisonmotorcycles?_trksid=p2047675.l2563|Link to Ebay Store]] )) \\ | ||
- | ==== Splash ==== | ||
+ | ==== Splash ==== | ||
* __**Occasional excess pressured oil (from the oil filter pad)**__ is dumped into the gearcase by the oil pressure relief valve. | * __**Occasional excess pressured oil (from the oil filter pad)**__ is dumped into the gearcase by the oil pressure relief valve. | ||
* High pressure oil, when cold (on startup), opens the pressure regulator. | * High pressure oil, when cold (on startup), opens the pressure regulator. | ||
Line 91: | Line 83: | ||
- | | 86-90 engine sump splash holes ((photo by Mini_blitz of the XLFORUM http://xlforum.net/forums/showthread.php?t=1974615&page=3)) | | + | | 86-90 engine sump splash holes ((photo by Mini_blitz of the XLFORUM https://www.xlforum.net/forum/sportster-motorcycle-forum/sportster-motorcycle-motor-engine/sportster-motorcycle-bottom-end/183493-1986-evolution-sportster-cam-cover-install-help/page3?t=1974615&page=3)) | |
|{{:techtalk:evo:oil:86-90_sump_splash_ports_oiling_by_mini_blitz.jpg?direct&300|}}| | |{{:techtalk:evo:oil:86-90_sump_splash_ports_oiling_by_mini_blitz.jpg?direct&300|}}| | ||
- | ==== Oil Pump Scavenge ==== | ||
+ | ==== Oil Pump Scavenge ==== | ||
* __**Drainage**__ | * __**Drainage**__ | ||
- | | 86-90 oil scavenging ((photo by Mini_blitz of the XLFORUM http://xlforum.net/forums/showthread.php?t=1974615&page=3)) | 86-90 cam cover ((photo by engine of the XLFORUM http://xlforum.net/forums/showthread.php?t=22717)) | 86-90 Oil Pump Oiling Paths. ((photo by Hippysmack)) | | + | | 86-90 oil scavenging ((photo by Mini_blitz of the XLFORUM https://www.xlforum.net/forum/sportster-motorcycle-forum/sportster-motorcycle-motor-engine/sportster-motorcycle-bottom-end/183493-1986-evolution-sportster-cam-cover-install-help/page3?t=1974615&page=3)) | 86-90 cam cover ((photo by engine of the XLFORUM https://www.xlforum.net/forum/sportster-motorcycle-forum/sportster-motorcycle-styles/sportster-motorcycle-project/13592-1200-conv-progress?t=22717)) | 86-90 Oil Pump Oiling Paths. ((photo by Hippysmack)) | |
|{{:techtalk:evo:oil:86-90_engine_scavenging_by_mini_blitz.jpg?direct&300|}}|{{:techtalk:evo:oil:86-90_cam_cover_by_engine.jpg?direct&300|}}|{{:techtalk:evo:oil:86-90_oil_pump_oiling_paths_by_hippysmack.jpg?direct&300|}}| | |{{:techtalk:evo:oil:86-90_engine_scavenging_by_mini_blitz.jpg?direct&300|}}|{{:techtalk:evo:oil:86-90_cam_cover_by_engine.jpg?direct&300|}}|{{:techtalk:evo:oil:86-90_oil_pump_oiling_paths_by_hippysmack.jpg?direct&300|}}| | ||
+ | |||
===== 91-Up Engines ===== | ===== 91-Up Engines ===== | ||
{{:techtalk:evo:oil:91_sportster_oil_drainage_by_hippysmack.jpg?direct&300|}} ((drawing by Hippysmack)) {{:techtalk:evo:oil:92-97_sportster_oil_drainage_by_hippysmack.jpg?direct&300|}} ((drawing by Hippysmack)) \\ | {{:techtalk:evo:oil:91_sportster_oil_drainage_by_hippysmack.jpg?direct&300|}} ((drawing by Hippysmack)) {{:techtalk:evo:oil:92-97_sportster_oil_drainage_by_hippysmack.jpg?direct&300|}} ((drawing by Hippysmack)) \\ | ||
{{:techtalk:evo:oil:98-03_sportster_oil_drainage_by_hippysmack.jpg?direct&300|}} ((drawing by Hippysmack)) {{:techtalk:evo:oil:04_and_up_sportster_oil_drainage_by_hippysmack.jpg?direct&300|}} ((drawing by Hippysmack)) \\ | {{:techtalk:evo:oil:98-03_sportster_oil_drainage_by_hippysmack.jpg?direct&300|}} ((drawing by Hippysmack)) {{:techtalk:evo:oil:04_and_up_sportster_oil_drainage_by_hippysmack.jpg?direct&300|}} ((drawing by Hippysmack)) \\ | ||
- | ==== Gravity ==== | ||
+ | ==== Gravity ==== | ||
* __**Gravity oil**__ (drained from rocker boxes and head/cylinder drainage) falls on moving parts and into the crankcase. | * __**Gravity oil**__ (drained from rocker boxes and head/cylinder drainage) falls on moving parts and into the crankcase. | ||
* __**(91 only) - Occasional excess pressured oil (from the oil filter pad)**__ is dumped into the gearcase by the oil pressure relief valve. | * __**(91 only) - Occasional excess pressured oil (from the oil filter pad)**__ is dumped into the gearcase by the oil pressure relief valve. | ||
Line 125: | Line 118: | ||
|{{:techtalk:evo:oil:head_drain_holes_1_by_hippysmack.jpg?direct&300|}}|{{:techtalk:evo:oil:head_drain_holes_2_by_hippysmack.jpg?direct&300|}}|{{:techtalk:evo:oil:98_cylinder_head_drains_by_hippysmack.jpg?direct&300|}}| | |{{:techtalk:evo:oil:head_drain_holes_1_by_hippysmack.jpg?direct&300|}}|{{:techtalk:evo:oil:head_drain_holes_2_by_hippysmack.jpg?direct&300|}}|{{:techtalk:evo:oil:98_cylinder_head_drains_by_hippysmack.jpg?direct&300|}}| | ||
- | | 91-03 style rear head drainage hole ((photos by Hippysmack)) || Head drains at the cylinder base on the case. ((photo by isiahstites of the XLFORUM http://xlforum.net/forums/showthread.php?t=51598&page=5)) | | + | | 91-03 style rear head drainage hole ((photos by Hippysmack)) || Head drains at the cylinder base on the case. ((photo by isiahstites of the XLFORUM https://www.xlforum.net/forum/sportster-buell-motorcycle-racing/lsr-sporster-buell-motorcycle-land-speed-record/31067-my-ls-build/page5?t=51598&page=5)) | |
|{{:techtalk:evo:oil:head_drain_holes_3_by_hippysmack.jpg?direct&300|}}|{{:techtalk:evo:oil:head_drain_holes_4_by_hippysmack.jpg?direct&300|}}|{{:techtalk:evo:oil:91-99_case_drains_by_isiahstites.jpg?direct&300|}}| | |{{:techtalk:evo:oil:head_drain_holes_3_by_hippysmack.jpg?direct&300|}}|{{:techtalk:evo:oil:head_drain_holes_4_by_hippysmack.jpg?direct&300|}}|{{:techtalk:evo:oil:91-99_case_drains_by_isiahstites.jpg?direct&300|}}| | ||
- | |||
* __**04-Up**__ | * __**04-Up**__ | ||
Line 136: | Line 128: | ||
* The separated oil flows into drain holes in the rocker boxes and back into the gearcase. | * The separated oil flows into drain holes in the rocker boxes and back into the gearcase. | ||
- | | Head drains in the cylinders ((photo by JohnK of the XLFORUM http://xlforum.net/forums/showthread.php?t=1422877&page=6)) \\ 1 hole is plugged on each cylinder during installation. | Head drains at the cylinder base on the case ((photo by JohnK of the XLFORUM http://xlforum.net/forums/showthread.php?t=1422877&page=4)) | | + | | Head drains in the cylinders ((photo by JohnK of the XLFORUM https://www.xlforum.net/forum/sportster-motorcycle-forum/sportster-motorcycle-motor-engine/sportster-motorcycle-motor-top-end/132786-fixing-a-leaky-top-end-with-pics/page6?t=1422877&page=6)) \\ 1 hole is plugged on each cylinder during installation. | Head drains at the cylinder base on the case ((photo by JohnK of the XLFORUM https://www.xlforum.net/forum/sportster-motorcycle-forum/sportster-motorcycle-motor-engine/sportster-motorcycle-motor-top-end/132786-fixing-a-leaky-top-end-with-pics/page4?t=1422877&page=4)) | |
|{{:techtalk:evo:oil:05_cylinder_drain_holes_2_by_johnk.jpg?direct&300|}}|{{:techtalk:evo:oil:05_head_drains_by_johnk.jpg?direct&300|}}| | |{{:techtalk:evo:oil:05_cylinder_drain_holes_2_by_johnk.jpg?direct&300|}}|{{:techtalk:evo:oil:05_head_drains_by_johnk.jpg?direct&300|}}| | ||
- | |Milled slots in the left case match milled slots in the \\ right case for rocker box drain from valve side. ((photo by bsaman of the XLFORUM, labeled by Hippysmack http://xlforum.net/forums/showthread.php?t=691283&page=3))|Lower part of slots in the right case exit thru drilled holes into the gearcase. ((photo by meherdad_it of the XLFORUM, labeled by Hippysmack http://xlforum.net/forums/showthread.php?threadid=944843))|| | + | |Milled slots in the left case match milled slots in the \\ right case for rocker box drain from valve side. ((photo by bsaman of the XLFORUM, labeled by Hippysmack https://www.xlforum.net/forum/sportster-motorcycle-forum/sportster-motorcycle-era-specific-and-model-specific/rubber-mount-sportster-motorcycle-talk-2004-2006/87615-crank-replacement-documentation/page3?t=691283&page=3))|Lower part of slots in the right case exit thru drilled holes into the gearcase. ((photo by meherdad_it of the XLFORUM, labeled by Hippysmack https://www.xlforum.net/forum/sportster-motorcycle-forum/sportster-motorcycle-motor-engine/sportster-motorcycle-engine-conversions/105751-installing-the-90-nrhs?threadid=944843))|| |
|{{:techtalk:evo:oil:04-up_topend_oil_drainage_by_bsaman.jpg?direct&300|}}|{{:techtalk:evo:oil:06_right_crankcase_1_by_meherdad_it.jpg?direct&300|}}|{{:techtalk:evo:oil:06_cam_chest_head_drains_by_meherdad_it_-cropped-labeled_by_hippysmack.jpg?direct&300|}}| | |{{:techtalk:evo:oil:04-up_topend_oil_drainage_by_bsaman.jpg?direct&300|}}|{{:techtalk:evo:oil:06_right_crankcase_1_by_meherdad_it.jpg?direct&300|}}|{{:techtalk:evo:oil:06_cam_chest_head_drains_by_meherdad_it_-cropped-labeled_by_hippysmack.jpg?direct&300|}}| | ||
- | | Rocker box drains into the cam chest. ((photos by dieselvette of the XLFORUM http://xlforum.net/forums/showthread.php?t=2073932&page=67)) || | + | | Rocker box drains into the cam chest. ((photos by dieselvette of the XLFORUM https://www.xlforum.net/forum/sportster-motorcycle-forum/sportster-motorcycle-motor-engine/sportster-motorcycle-bottom-end/197307-sportster-crankcase-pressure-engine-breathing-wetsumping-and-mods/page67?t=2073932&page=67)) || |
|{{:techtalk:evo:oil:04_rocker_box_drains_into_cam_chest_wall_1_by_dieselvette.jpg?direct&300|}}|{{:techtalk:evo:oil:04_rocker_box_drains_into_cam_chest_wall_2_by_dieselvette.jpg?direct&300|}}| | |{{:techtalk:evo:oil:04_rocker_box_drains_into_cam_chest_wall_1_by_dieselvette.jpg?direct&300|}}|{{:techtalk:evo:oil:04_rocker_box_drains_into_cam_chest_wall_2_by_dieselvette.jpg?direct&300|}}| | ||
==== Splash ==== | ==== Splash ==== | ||
- | |||
* __**Splash oil**__ \\ (from the up and down movement of the connecting rods, crankshaft and pressure generated under the pistons on downstroke) | * __**Splash oil**__ \\ (from the up and down movement of the connecting rods, crankshaft and pressure generated under the pistons on downstroke) | ||
* Crankcase pressure mixed with oil in the sump area serves to splash (and lubricate) the moving parts such as; | * Crankcase pressure mixed with oil in the sump area serves to splash (and lubricate) the moving parts such as; | ||
Line 156: | Line 147: | ||
=== 91-99 === | === 91-99 === | ||
- | + | | 91-99 crankcase splash holes. ((photo by ehrgeiz of the XLFORUM and labeled by Hippysmack http://xlforum.net/forums/showthread.php?t=654598&page=2)) | Close up view of a 98 cam chest. ((photo by isiahstites of the XLFORUM and labeled by Hippysmack https://www.xlforum.net/forum/sportster-buell-motorcycle-racing/lsr-sporster-buell-motorcycle-land-speed-record/31067-my-ls-build/page5?t=51598&page=5)) | | |
- | | 91-99 crankcase splash holes. ((photo by ehrgeiz of the XLFORUM and labeled by Hippysmack http://xlforum.net/forums/showthread.php?t=654598&page=2)) | Close up view of a 98 cam chest. ((photo by isiahstites of the XLFORUM and labeled by Hippysmack http://xlforum.net/forums/showthread.php?t=51598&page=5)) | | + | |
|{{:techtalk:evo:oil:91-99_sump_splash_ports_by_ehrgeiz.jpg?direct&300|}}|{{:techtalk:evo:oil:98_cam_chest_by_isiahstites.jpg?direct&300|}}| | |{{:techtalk:evo:oil:91-99_sump_splash_ports_by_ehrgeiz.jpg?direct&300|}}|{{:techtalk:evo:oil:98_cam_chest_by_isiahstites.jpg?direct&300|}}| | ||
=== 00-03 === | === 00-03 === | ||
- | + | | 00-03 crankcase splash holes. ((photo by WestJC7745 of the XLFORUM https://www.xlforum.net/forum/sportster-motorcycle-forum/sportster-motorcycle-motor-engine/sportster-motorcycle-bottom-end/183128-1995-xlh1200?t=1971672)) | Close up view of an 02 cam chest. ((photo by Bruce of the XLFORUM https://www.xlforum.net/forum/sportster-motorcycle-forum/sportster-motorcycle-motor-engine/sportster-motorcycle-engine-conversions/116357-bruce-s-conversion-finally/page2?t=1118529&page=2up)) | | |
- | + | ||
- | | 00-03 crankcase splash holes. ((photo by WestJC7745 of the XLFORUM http://xlforum.net/forums/showthread.php?t=1971672)) | Close up view of an 02 cam chest. ((photo by Bruce of the XLFORUM http://xlforum.net/forums/showthread.php?t=1118529&page=2up)) | | + | |
|{{:techtalk:evo:oil:2000_and_up_sump_splash_ports_by_drummerboy4as.jpg?direct&300|}}|{{:techtalk:evo:oil:02_cam_chest_1_by_bruce.jpg?direct&300|}}| | |{{:techtalk:evo:oil:2000_and_up_sump_splash_ports_by_drummerboy4as.jpg?direct&300|}}|{{:techtalk:evo:oil:02_cam_chest_1_by_bruce.jpg?direct&300|}}| | ||
Line 175: | Line 163: | ||
* There is no seal on the bearing and air pulses into the cam chest to be pulled up into vertical passages between the cam slots. | * There is no seal on the bearing and air pulses into the cam chest to be pulled up into vertical passages between the cam slots. | ||
- | | 04-up piston jets. ((photos by JohnK of the XLFORUM http://xlforum.net/forums/showthread.php?t=1422877&page=6)) || Piston jets from inside the case. ((photo by meherdad_it of the XLFORUM http://xlforum.net/forums/showthread.php?threadid=944843)) | | + | | 04-up piston jets. ((photos by JohnK of the XLFORUM https://www.xlforum.net/forum/sportster-motorcycle-forum/sportster-motorcycle-motor-engine/sportster-motorcycle-motor-top-end/132786-fixing-a-leaky-top-end-with-pics/page6?t=1422877&page=6)) || Piston jets from inside the case. ((photo by meherdad_it of the XLFORUM https://www.xlforum.net/forum/sportster-motorcycle-forum/sportster-motorcycle-motor-engine/sportster-motorcycle-engine-conversions/105751-installing-the-90-nrhs?threadid=944843)) | |
|{{:techtalk:evo:oil:05_piston_oilers_3_by_meherdad_it.jpg?direct&300|}}|{{:techtalk:evo:oil:05_piston_oilers_2_by_meherdad_it.jpg?direct&300|}}|{{:techtalk:evo:oil:06_piston_oilers_1_by_meherdad_it.jpg?direct&300|}}| | |{{:techtalk:evo:oil:05_piston_oilers_3_by_meherdad_it.jpg?direct&300|}}|{{:techtalk:evo:oil:05_piston_oilers_2_by_meherdad_it.jpg?direct&300|}}|{{:techtalk:evo:oil:06_piston_oilers_1_by_meherdad_it.jpg?direct&300|}}| | ||
- | |||
==== Oil Pump Scavenge ==== | ==== Oil Pump Scavenge ==== | ||
Line 183: | Line 170: | ||
* __**Drainage**__ | * __**Drainage**__ | ||
- | * Oil collected in the crankcase sump is passage-routed to the scavenger side of the oil pump. \\ (by pressure generated by the downward stroke of the pistons and the scavenging effect of the pump) \\ Sump oil is collected by the pump at the 'ladle, half spoon, duck bill' protruding from the back of it where oil drops onto the scavenge gerotors.. ((http://xlforum.net/forums/showthread.php?postid=5473151#post5473151)) | + | * Oil collected in the crankcase sump is passage-routed to the scavenger side of the oil pump. \\ (by pressure generated by the downward stroke of the pistons and the scavenging effect of the pump) \\ Sump oil is collected by the pump at the 'ladle, half spoon, duck bill' protruding from the back of it where oil drops onto the scavenge gerotors.. ((https://www.xlforum.net/forum/sportster-motorcycle-forum/lubrication-and-lubricants/187300-how-to-clear-a-sump-full-of-oil/page3?postid=5473151#post4009969)) |
* Oil collected in the gearcase / cam chest is routed to a drain port in the top of the oil pump where it drops down onto the scavenge gerotors. | * Oil collected in the gearcase / cam chest is routed to a drain port in the top of the oil pump where it drops down onto the scavenge gerotors. | ||
* Return oil fills a cavity above the pump's return gears from these dual inlets and pumps the oil back into the oil tank. | * Return oil fills a cavity above the pump's return gears from these dual inlets and pumps the oil back into the oil tank. | ||
- | * Below is the case drain for a 98 engine. ((aswracing of the XLFORUM http://xlforum.net/forums/showthread.php?t=1520811&highlight=oil+pump&page=3)) | + | * Below is the case drain for a 98 engine. ((aswracing of the XLFORUM https://www.xlforum.net/forum/buell-motorcycle-forum/buell-motorcycle-general-discussion-and-problems/140238-96-buell-s1-engine-problems-need-help/page3?t=1520811&highlight=oil+pump&page=3)) |
* It's also a rifling hole drilled to connect the sump drain to the oil pump scavenge galley. | * It's also a rifling hole drilled to connect the sump drain to the oil pump scavenge galley. | ||
* It could be plugged with a treaded pipe plug or a freeze plug. | * It could be plugged with a treaded pipe plug or a freeze plug. | ||
- | | Case drain / rifling hole for sump drain ((photo by Steelworker of the XLFORUM http://xlforum.net/forums/showthread.php?t=1520811&highlight=oil+pump&page=3)) | Rifling hole is on the back side of hole on the right. ((photo by WestJC7745 of the XLFORUM http://xlforum.net/forums/showthread.php?t=1971672))| | + | | Case drain / rifling hole for sump drain ((photo by Steelworker of the XLFORUM https://www.xlforum.net/forum/buell-motorcycle-forum/buell-motorcycle-general-discussion-and-problems/140238-96-buell-s1-engine-problems-need-help/page3?t=1520811&highlight=oil+pump&page=3)) | Rifling hole is on the back side of hole on the right. ((photo by WestJC7745 of the XLFORUM https://www.xlforum.net/forum/sportster-motorcycle-forum/sportster-motorcycle-motor-engine/sportster-motorcycle-bottom-end/183128-1995-xlh1200?t=1971672))| |
|{{:techtalk:evo:oil:98_oil_galley_rifling_hole_by_steelworker.jpg?direct&300|}}|{{:techtalk:evo:oil:95_right_case_half_by_westjc7745.jpg?direct&300|}}| | |{{:techtalk:evo:oil:98_oil_galley_rifling_hole_by_steelworker.jpg?direct&300|}}|{{:techtalk:evo:oil:95_right_case_half_by_westjc7745.jpg?direct&300|}}| | ||
- | | 04 and up oil scavenge path ((photo by meherdad_it of the XLFORUM, cropped & labeled by Hippysmack http://xlforum.net/forums/showthread.php?t=944843&page=2)) | 04_up sump drain plug. ((photo by Bored now of the XLFORUM http://xlforum.net/forums/showthread.php?t=2071954&highlight=oil+tank+pressure&page=2)) | | + | | 04 and up oil scavenge path ((photo by meherdad_it of the XLFORUM, cropped & labeled by Hippysmack https://www.xlforum.net/forum/sportster-motorcycle-forum/sportster-motorcycle-motor-engine/sportster-motorcycle-engine-conversions/105751-installing-the-90-nrhs/page2?t=944843&page=2)) | 04_up sump drain plug. ((photo by Bored now of the XLFORUM https://www.xlforum.net/forum/sportster-motorcycle-forum/sportster-motorcycle-era-specific-and-model-specific/efi-sportster-motorcycle-talk-2007-and-up/195584-oil-tank-building-presure-blew-out-dip-stick/page2?t=2071954&highlight=oil+tank+pressure&page=2)) | |
|{{:techtalk:evo:oil:04-up_oil_scavenge_path_by_meherdad_it.jpg?direct&300|}}|{{:techtalk:evo:oil:04_up_sump_drain_plug_by_bored_now.jpg?direct&300|}}| | |{{:techtalk:evo:oil:04-up_oil_scavenge_path_by_meherdad_it.jpg?direct&300|}}|{{:techtalk:evo:oil:04_up_sump_drain_plug_by_bored_now.jpg?direct&300|}}| | ||
- | | 98 and Up Oil Pump Oiling Paths ((photo by bsaman of the XLFORUM http://xlforum.net/forums/showthread.php?t=691283&page=2)) | | + | | 98 and Up Oil Pump Oiling Paths ((photo by bsaman of the XLFORUM https://www.xlforum.net/forum/sportster-motorcycle-forum/sportster-motorcycle-era-specific-and-model-specific/rubber-mount-sportster-motorcycle-talk-2004-2006/87615-crank-replacement-documentation/page2?t=691283&page=2)) | |
|{{:techtalk:evo:oil:98-up_oil_pump_oiling_paths_by_bsaman.jpg?direct&300|}}| | |{{:techtalk:evo:oil:98-up_oil_pump_oiling_paths_by_bsaman.jpg?direct&300|}}| | ||
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