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techtalk:evo:oil02 [2022/09/10 03:36]
hippysmack [Pinion shaft and Crank Pin]
techtalk:evo:oil02 [2024/02/04 18:50]
hippysmack removed
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       * The lifters supply oil pressure to the rocker boxes.       * The lifters supply oil pressure to the rocker boxes.
  
-|  86-90 main oil feed path ((photos by Mini_blitz of the XLFORUM, labeled by Hippysmack ​http://​xlforum.net/​forums/showthread.php?​t=1974615&​page=3)) ​ || +|  86-90 main oil feed path ((photos by Mini_blitz of the XLFORUM, labeled by Hippysmack ​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_right_case_main_oil_feed_path_by_mini_blitz.jpg?​direct&​300|}}|{{:​techtalk:​evo:​oil:​86_cam_cover_main_oil_feed_path_by_mini_blitz.jpg?​direct&​300|}}| |{{:​techtalk:​evo:​oil:​86-90_right_case_main_oil_feed_path_by_mini_blitz.jpg?​direct&​300|}}|{{:​techtalk:​evo:​oil:​86_cam_cover_main_oil_feed_path_by_mini_blitz.jpg?​direct&​300|}}|
  
Line 42: Line 42:
 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|}}|
- 
- 
- 
- 
- 
  
 ====== Bottom End Oiling ====== ====== Bottom End Oiling ======
- 
- 
-===== Cam Oiling ===== 
- 
-      * Oil flows off the pushrod side of the rocker boxes through the pushrod covers, into vertical holes in the lifter bores and into the gearcase. 
-        * Oil falls on the cam lobes on the way down this hole. 
-        * Some of this oil is transferred between the gear teeth. 
-      * The rear intake (#2) cam gets a little oil spray from the right case oil feed galley through the small orifice underneath the open cavity in the case. 
-        * That oil is transferred between the teeth of the cams. 
-      * Oil flung off the cams lands in the gearcase to be collected into the scavenge (return) side of the oil pump. 
- 
-Below are pics of the restricted orifice underneath the oil feed galley in the case that shoots a small stream onto #2 cam. \\ 
-#2 cam rotates counterclockwise and the oil is sprayed on the right side of the cam gear for extra cooling. 
-|  (L) 92-99 ((photo by Hippysmack of the XLFORUM)), (R) 2000 Up ((photo by Bruce of the XLFORUM http://​xlforum.net/​forums/​showthread.php?​t=1118529&​page=2up)) cam oiling hole from the feed galley ​ || 
-| {{:​techtalk:​evo:​oil:​92-99_cam_oiler_hole_by_hippysmack.jpg?​direct&​300|}} |{{:​techtalk:​evo:​oil:​2000_up_cam_oiler_hole_by_bruce.jpg?​direct&​300|}}| 
- 
-===== Cam Cover Bushings ===== 
-All cam bushings are fed from splash oil into channeled holes drilled behind the bushing faces. \\ 
-#1, #3 and #4 cam bores have channels drilled from the top down into the back side of the bores. \\ 
-The channel for #2 cam bore starts at the bottom and is drilled into the back side of the bore. \\ 
-The pinion bushing (as well as the hole in the pinion shaft) is fed from a cross drilled hole in the top of the cover. \\ 
- 
-|{{:​techtalk:​evo:​oil:​cam_bushing_oiling_1_by_hippysmack.jpg?​direct&​300|}}|{{:​techtalk:​evo:​oil:​cam_bushing_oiling_2_by_hippysmack.jpg?​direct&​300|}}|{{:​techtalk:​evo:​oil:​cam_bushing_oiling_3_by_hippysmack.jpg?​direct&​300|}}| 
- 
-|{{:​techtalk:​evo:​oil:​pinion_bushing-shaft_oiling_1_by_hippysmack.jpg?​direct&​300|}}|{{:​techtalk:​evo:​oil:​cam_bushing_oiling_4_by_hippysmack.jpg?​direct&​300|}}|{{:​techtalk:​evo:​oil:​cam_bushing_oiling_5_by_hippysmack.jpg?​direct&​300|}}| 
- 
-|{{:​techtalk:​evo:​oil:​cam_bushing_oiling_6_by_hippysmack.jpg?​direct&​300|}}|{{:​techtalk:​evo:​oil:​cam_bushing_oiling_8_by_hippysmack.jpg?​direct&​300|}}|{{:​techtalk:​evo:​oil:​cam_bushing_oiling_7_by_hippysmack.jpg?​direct&​300|}}| 
- 
-===== Cam Cover \ Gasket ===== 
-91 and up Sportster engines have an internal rifling hole drilled into the lower left side of the case running past the left side of the oil pump. \\ 
-That extra hole (in the picture below) is benign and doesn'​t need a hole in the gasket to match. \\ 
-That hole is purely an artifact of how they connected two passages for routing crankcase oil up to the oil pump's scavenge section. \\ 
-They drill that hole to connect the two passages, and then it gets blocked off naturally by the cam box cover and gasket. ((aswracing of the XLFORUM http://​xlforum.net/​forums/​showthread.php?​t=2036109&​highlight=oil+pump&​page=3)) \\ 
- 
-Also, in 2000, the factory changed the oil routing to the lifters to make manufacturing the cases easier. \\ 
-The newer cam cover on the left in the pic below and has two extra grooves along the top. \\ 
-These grooves let oil get to the lifters. \\ 
-If you have an older style gasket, it will not have cutouts for the grooves and you won't get oil to the lifters. \\ 
- 
-|  Rubbermount Evo vs Rigid Evo Cam Cover Internals ((photo by Moved On of the XLFORUM http://​xlforum.net/​forums/​showthread.php?​t=87313)) ​ | 
-|{{:​techtalk:​evo:​oil:​rubbermount_vs_rigid_evo_cam_cover_comparison_by_moved_on.jpg?​direct&​600|}}| 
-|  Both have been chopped on the outside but the gearcase perimeter is intact on them for reference. ​ | 
- 
-|  91-99 cam cover gasket ((photo by Hippysmack)) ​ |  91-99 cam cover seals off the extra hole. ((photos by Hippysmack)) ​ || 
-|{{:​techtalk:​evo:​oil:​91-99_cam_cover_gasket_2_by_hippysmack.jpg?​direct&​300|}}|{{:​techtalk:​evo:​oil:​91-99_cam_cover_gasket_1_by_hippysmack.jpg?​direct&​300|}}|{{:​techtalk:​evo:​oil:​91-99_cam_cover_gasket_4_by_hippysmack.jpg?​direct&​300|}}| 
- 
-|  2000-up cam cover gasket ((photo by Phillober of the XLFORUM http://​xlforum.net/​forums/​showthread.php?​t=1122547&​page=7)) ​ |2000 up gasket seals off the extra hole. ((sep69 of the XLFORUM http://​xlforum.net/​forums/​showthread.php?​t=2036109&​highlight=oil+pump&​page=3))| 
-|{{:​techtalk:​evo:​oil:​2000_up_cam_cover_gasket_by_phillober.jpg?​direct&​300|}}|{{:​techtalk:​evo:​oil:​cam_cover_gasket_on_03_model_by_sep69.jpg?​direct&​300|}}| 
 \\ \\
- 
-**DON'​T INSTALL a 91-99 CAM COVER GASKET ON A 2000-UP MOTOR!!!!!!!** ​ 
- 
-The 91-99 cam cover gasket has no business being on a 2000+ motor at all. It will cause you to lose all oil pressure. ((aswracing of the XLFORUM http://​xlforum.net/​forums/​showthread.php?​t=2079110&​highlight=oil+tank&​page=14)) \\ 
-The 2000+ gasket supersedes the 91-99 gasket. In other words, it can be used all the way back to 1991. \\ 
-Most companies completely dropped the 91-99 specific gasket and only offer the one that can be used from 1991-present. \\ 
-Either James Gasket hasn't done that, or they may have some old stock. \\ 
- 
-The 91-99 lifter feed galley is an internal rifling hole in the case. It's drilled thru the case and only open to the cam cover via the center port to the pinion bushing. \\ 
-The 2000-up lifter feed galley is external and it takes both the cover and the case mounted together to make up the feed galley. \\ 
-So 00-up feed galley is split in half between the case and cover. The slots in the 2000-up cam cover gasket mate to both the case and the cover. \\ 
-If you have the correct gasket on there, oil would be forced (between the cover and case) to all the lifter feed holes and piston squirters. \\ 
-With the wrong gasket (91-99), oil pressure leaving the filter gets into that (now open) galley. \\ 
-Then the oil will blow into into the cam chest, therefore bypassing the lifters, piston squirters and rod bearings. \\ 
-The oil will simply cycle from the oil pump to cam chest to oil pump and back to the oil tank. \\ 
-The oil light will stay off so you'll get no notice before moving the parts start oil starving and making noises and worse if the noises aren't heeded to quickly. \\ 
- 
-|  2000-up motor with 91-99 cam cover gasket. ((photo by BestCoastXL of the XLFORUM http://​xlforum.net/​forums/​showthread.php?​t=2079110&​highlight=oil+tank&​page=12)) ​ |  Below is a rough cross section of the joint in the \\ feed galley at that first slotted run. ((drawing by Hippysmack)) ​ | 
-|{{:​techtalk:​evo:​oil:​2000-up_sportster_with_wrong_91-99_cam_cover_gasket_by_bestcoastxl.jpg?​direct&​300|}}|{{:​techtalk:​evo:​oil:​2000-up_sportster_with_wrong_91-99_cam_cover_gasket_by_hippysmack.png?​direct&​300|}}| 
 ====== 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 141: 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 156: 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 190: 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 201: 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 221: 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 240: 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 248: 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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