Differences

This shows you the differences between two versions of the page.

--- techtalk:ih:oil03a [2018/12/23 02:20]
hippysmack [77-E83]
+++ techtalk:ih:oil03a [2024/01/01 18:17] (current)
hippysmack
@@ Line 6: / Line 6: @@
 |{{:techtalk:ih:oil:83_xlx_oil_pump_by_gc5444.jpg?direct&300|}}|
-|  Oil Pump on 83 XLX ((photo by GC5444 of the XLFORUM http://xlforum.net/forums/showthread.php?t=1704016))  |
+|  Oil Pump on 83 XLX ((photo by GC5444 of the XLFORUM https://www.xlforum.net/forum/sportster-motorcycle-forum/sportster-motorcycle-era-specific-and-model-specific/ironhead-sportster-motorcycle-talk-1957-1985/159045-83-oil-line-checks?t=1704016))  |
@@ Line 29: / Line 29: @@
 ===== Oil Pump Body =====
+==== 77-E83 ====
 |{{:techtalk:ih:oil:77-85_oil_pump_body_9_by_hippysmack.jpg?direct&300|}}|{{:techtalk:ih:oil:77-85_oil_pump_body_10_by_hippysmack.jpg?direct&300|}}|
@@ Line 35: / Line 36: @@
 |{{:techtalk:ih:oil:77-85_oil_pump_body_5_by_hippysmack.jpg?direct&300|}}|{{:techtalk:ih:oil:77-85_oil_pump_body_6_by_hippysmack.jpg?direct&300|}}|{{:techtalk:ih:oil:77-85_oil_pump_body_7_by_hippysmack.jpg?direct&300|}}|
+==== L83-85 ====
+|  Late 83-85 pump body ((photo by marklocklear of the XLFORUM https://www.xlforum.net/forum/sportster-motorcycle-forum/sportster-motorcycle-era-specific-and-model-specific/ironhead-sportster-motorcycle-talk-1957-1985/195988-seized-oil-pump/page2#post4274850))  |
+|{{:techtalk:ih:oil:l83_pump_body_by_marklocklear.jpg?direct&300|}}|
 ===== Oil Pump Cover =====
+==== 77-E83 ====
 |{{:techtalk:ih:oil:77-85_oil_pump_cover_1_by_hippysmack.jpg?direct&300|}}|{{:techtalk:ih:oil:77-85_oil_pump_cover_2_by_hippysmack.jpg?direct&300|}}|{{:techtalk:ih:oil:77-85_oil_pump_cover_3_by_hippysmack.jpg?direct&300|}}|
 |{{:techtalk:ih:oil:77-85_oil_pump_cover_4_by_hippysmack.jpg?direct&300|}}|{{:techtalk:ih:oil:77-85_oil_pump_cover_5_by_hippysmack.jpg?direct&300|}}|{{:techtalk:ih:oil:77-85_oil_pump_cover_6_by_hippysmack.jpg?direct&300|}}|
+==== L83-85 ====
+|Late 83-85 pumpcover ((photo by marklocklear of the XLFORUM https://www.xlforum.net/forum/sportster-motorcycle-forum/sportster-motorcycle-era-specific-and-model-specific/ironhead-sportster-motorcycle-talk-1957-1985/195988-seized-oil-pump/page2#post4274850))|
+|{{:techtalk:ih:oil:l83_pump_cover_marklocklear.jpg?direct&300|}}|
 ====== Gearshaft ======
 See also [[techtalk:ih:oil03b#gear_shaft_dims|Gear Shaft Dims]]. \\
@@ Line 48: / Line 62: @@
 |{{:techtalk:ih:oil:77-85_oil_pump_gear_shaft_2.0_by_hippysmack.jpg?direct&300|}}|{{:techtalk:ih:oil:77-85_oil_pump_gear_shaft_comparison_1_by_dirtycory.jpg?direct&300|}}|
-|  All have 20 teeth gears ((photo by Hippysmack))  |Longer shaft (L), Shorter shaft (R) with hash marks \\ on the top. Reason for the hash marks presently \\ unknown. ((photo by DirtyCory of the XLFORUM http://xlforum.net/forums/showthread.php?t=2071153&page=8))|
+|  All have 20 teeth gears ((photo by Hippysmack))  |Longer shaft (L), Shorter shaft (R) with hash marks \\ on the top. Reason for the hash marks presently \\ unknown. ((photo by DirtyCory of the XLFORUM https://www.xlforum.net/forum/sportster-motorcycle-forum/sportster-motorcycle-era-specific-and-model-specific/ironhead-sportster-motorcycle-talk-1957-1985/194881-let-s-study-the-77-85-oil-pump-parts-and-changes-and-when/page8?t=2071153&page=8))|
 |{{:techtalk:ih:oil:77-85_oil_pump_gear_shaft_1_by_hippysmack.jpg?direct&300|}}|{{:techtalk:ih:oil:77-85_oil_pump_gear_shaft_comparison_2_by_dirtycory.jpg?direct&300|}}|
-|  This shows where the wear occurs. ((photo by Hippysmack))  |  Lengths slightly different. ((photo by DirtyCory of the XLFORUM http://xlforum.net/forums/showthread.php?t=2071153&page=8))  |
+|  This shows where the wear occurs. ((photo by Hippysmack))  |  Lengths slightly different. ((photo by DirtyCory of the XLFORUM https://www.xlforum.net/forum/sportster-motorcycle-forum/sportster-motorcycle-era-specific-and-model-specific/ironhead-sportster-motorcycle-talk-1957-1985/194881-let-s-study-the-77-85-oil-pump-parts-and-changes-and-when/page8?t=2071153&page=8))  |
 ====== Gear Shaft Retaining Ring ======
 Gear shaft retaining ring (26497-75) was used on 77-90 model oil pumps. \\
 It keeps the inner plate, return gerotors and gearshaft locked in the pump. \\
-It also sets the lowest position for the plate and return gerotors inside the pump. \\
+It also sets the lowest position for the inner plate and return gerotors inside the pump. \\
 |{{:techtalk:ih:oil:77-85_oil_pump_gear_shaft_retaining_ring_by_hippysmack.jpg?direct&300|}}|{{:techtalk:ih:oil:77-85_oil_pump_retaining_ring_location_by_hippysmack.jpg?direct&300|}}|
 |  Gear shaft retaining ring (26497-75)  ((photo by Hippysmack))  |  Installed location  ((photo by Hippysmack))  |
 ====== Gearshaft Pins ======
 See also [[techtalk:ih:oil03b#section2648875|Gearshaft Pin Dims]] \\
-The gear shaft solid pin (26430-76), not to be confused with a roll pin with a hollow core ((brucstoudt of the XLFORUM http://xlforum.net/forums/showthread.php?t=2071153&page=5)), was used in 77-90 oil pumps. \\
+The gear shaft solid pin (26430-76), not to be confused with a roll pin with a hollow core ((brucstoudt of the XLFORUM https://www.xlforum.net/forum/sportster-motorcycle-forum/sportster-motorcycle-era-specific-and-model-specific/ironhead-sportster-motorcycle-talk-1957-1985/194881-let-s-study-the-77-85-oil-pump-parts-and-changes-and-when/page5?t=2071153&page=5)), was used in 77-90 oil pumps. \\
 The diameter and lengths of the pins vary. \\
 The shaft pins don't have to run out and touch the gerotors. \\
@@ Line 69: / Line 84: @@
 So, the exact length shouldn't be an issue for the gerotors. \\
-The installed lower pin also holds the outer plate in the pump body. \\
+The installed upper pin holds the gearshaft in the pump body during disassembly. \\
+The length of this pin shouldn't be an issue for the gearshaft. \\
-The installed upper pin holds the gearshaft in the pump body. \\
+The retaining ring and return gears set the upper positioning of this pin inside the pump. \\
-The length of this pin can be an issue. \\
-Too short and it won't keep the gearshaft in the pump. \\
 There is a clearance between the pump bore and the gearshaft. \\
 The upper gearshaft bushing does reach to the end of it's bore in the housing where the pin resides. \\
 So, there is extra clearance between the gearshaft and pump housing bore. \\
-If the pin holding the gearshaft is too short, it can get between the gearshaft and the housing bore. \\
+After the retaining ring comes out, the shaft can drop into this tapered bore clearance and the lower pin can scratch the aluminum sides. \\
+The installed lower pin also holds the outer plate in the pump body. \\
+The length of this pin could be a potential issue under the right conditions. \\
+Too short and it could get make it's way into the hole in the plate. \\
+This could induce slop in the plate and allow it to try to spin the plate against the roll pin in the body. \\
 |{{:techtalk:ih:oil:77-85_oil_pump_gear_shaft_pins_1_by_hippysmack.jpg?direct&300|}}|{{:techtalk:ih:oil:77-85_oil_pump_gear_shaft_pins_3_by_hippysmack.jpg?direct&300|}}|{{:techtalk:ih:oil:77-85_oil_pump_gearshaft_pin_location_5_by_hippysmack.jpg?direct&300|}}|
@@ Line 84: / Line 102: @@
 |{{:techtalk:ih:oil:lower_shaft_pin_installed_by_hippysmack.jpg?direct&300|}}|
 |  Lower shaft pin installed ((photo by Hippysmack))  |
 ====== Separator Plates ======
 The 77-90 oil pumps used two plates to separate the feed and scavenge gerotors. \\
-Both plates sit between the feed and return gears. \\
+Both plates sit between the feed and return gears and remain stationary during operation. \\
 The plates are separated by a spring washer that puts tension against each plate in opposite directions. \\
 Thus sealing off the feed and scavenge sections. \\
 |{{:techtalk:ih:oil:77-85_oil_pump_separator_plate_locations_by_hippysmack.jpg?direct&300|}}|
 |  Separator plate locations ((photo by Hippysmack))  |
 ===== Inner Plate =====
 See also; \\
@@ Line 104: / Line 124: @@
 |{{:techtalk:ih:oil:77-85_inner_plate_installed_position_by_hippysmack.jpg?direct&300|}}|
 |Inner separator plate installed position. \\ (pump upside down) ((photo by Hippysmack))|
 ===== Outer Plate =====
 See also; \\
@@ Line 115: / Line 136: @@
 Notice the difference of the cut out or recessed area of the inside diameter of the outer plates. \\
-This is for the different style of seals. ((DirtyCory of the XLFORUM http://xlforum.net/forums/showthread.php?t=2071153)) \\
+This is for the different style of seals. ((DirtyCory of the XLFORUM https://www.xlforum.net/forum/sportster-motorcycle-forum/sportster-motorcycle-era-specific-and-model-specific/ironhead-sportster-motorcycle-talk-1957-1985/194881-let-s-study-the-77-85-oil-pump-parts-and-changes-and-when?t=2071153)) \\
 Either plate will fit 77-90 oil pumps with their respective seals. \\
 |{{:techtalk:ih:oil:outer_plates_by_dirtycory_-_annotated.jpg?direct&500|}}|{{:techtalk:ih:oil:outer_plate_installed_by_hippysmack.jpg?direct&300|}}|
-|  Outer plate comparison ((photo by DirtyCory of the XLFORUM, annotated by Hippysmack http://xlforum.net/forums/showthread.php?t=2071153))  |  Outer plate installed position \\ (pump upside down) ((photo by Hippysmack))  |
+|  Outer plate comparison ((photo by DirtyCory 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-1957-1985/194881-let-s-study-the-77-85-oil-pump-parts-and-changes-and-when?t=2071153))  |  Outer plate installed position \\ (pump upside down) ((photo by Hippysmack))  |
 |{{:techtalk:ih:oil:77-82_oil_pump_outer_separator_plate_1_by_hippysmack.jpg?direct&300|}}|{{:techtalk:ih:oil:77-82_oil_pump_outer_separator_plate_2_by_hippysmack.jpg?direct&300|}}|{{:techtalk:ih:oil:77-85_oil_pump_outer_separator_plate_4_by_hippysmack.jpg?direct&300|}}|
@@ Line 140: / Line 161: @@
     * It is pressed into the outer plate hole to seal around the driveshaft.
-|{{:techtalk:ih:oil:12036_outer_plate_seal-_by_dirtycory.jpg?direct&300|}}|{{:techtalk:ih:oil:12036a_outer_plate_seal-_by_dirtycory.jpg?direct&300|}}|
-|  (12036) 77-82 Outer plate seal. ((photo by DirtyCory of the XLFORUM http://xlforum.net/forums/showthread.php?t=2071153))  |  (12036A) 83-85 Outer plate seal. ((photo by DirtyCory of the XLFORUM http://xlforum.net/forums/showthread.php?t=2071153))  |
+|{{:techtalk:ih:oil:77-85_outer_plate_seals_2_by_nhps.jpg?direct&300|}}|{{:techtalk:ih:oil:77-85_outer_plate_seals_3_by_nhps.jpg?direct&300|}}|{{:techtalk:ih:oil:12036_and_12036a_outer_plate_seals.jpg?direct&300|}}|
+|  (12036) 77-82 Outer plate seal. (12036A) 83-85 Outer plate seal. ((photos by NHPS of the XLFORUM https://www.xlforum.net/forum/sportster-motorcycle-forum/sportster-motorcycle-era-specific-and-model-specific/ironhead-sportster-motorcycle-talk-1957-1985/195683-77-oil-pump-rebuild?t=2072076))  ||  12036 and 12036A comparison ((photo by Hippysmack))  |
 |{{:techtalk:ih:oil:outer_seal_installed_by_hippysmack.jpg?direct&300|}}|{{:techtalk:evo:oil:83-90_oil_pump_outer_plate_seal_4_by_hippysmack.jpg?direct&300|}}|{{:techtalk:evo:oil:86-90_oil_pump_disassembly_3_by_hippysmack.jpg?direct&300|}}|
 |  Outer seal (12036) installed ((photo by Hippysmack))  |  Outer seal (12036A) installed ((photo by Hippysmack))  |  Outer seal (12036A) installed position on 86 pump. ((photo by Hippysmack))  |
 ====== Spring Washer ======
@@ Line 189: / Line 209: @@
 |{{:techtalk:ih:oil:77-e83_oil_pump_gerotors_1_by_hippysmack.jpg?direct&300|}}|{{:techtalk:ih:oil:77-e83_oil_pump_gerotors_2_by_hippysmack.jpg?direct&300|}}|
 |  77-E83 return (26491-75) and feed (26492-75) gerotors ((photos by Hippysmack))  ||
 ===== Late 1983 oil pump assembly design modification =====
@@ Line 197: / Line 218: @@
   * These modifications limit interchangeability and affect the installation of repair parts:
     * Either early style or late style gerotor gears may be used with late style (under-cut) oil pump bodies and covers.
-    * Only early style chamfered gerotor gears may be used with early style oil pump bodies and covers \\ (Use of  late style gerotor gears in early style oil pump bodies and covers could cause the oil pump to bind up and possible pump failure).
+    * Only early style chamfered gerotor gears may be used with early style oil pump bodies and covers \\ (Use of  late style gerotor gears in early style oil pump bodies AND covers could cause the oil pump to bind up and possible pump failure). \\ When non-chamfered gear sets are used, the pump body or cover must be changed.
 |{{:techtalk:ih:oil:77-e83_outside_gerotor_edge_by_dirtycory.jpg?direct&200|}}|{{:techtalk:ih:oil:l83-85_outside_gerotor_edge_by_dirtycory.jpg?direct&200|}}|
-|77-E83 gerotors. \\ Chamfered outside gear edges. ((photo by DirtyCory of the XLFORUM  http://xlforum.net/forums/showthread.php?t=2071153&page=3))|L83-85 gerotors. \\ Straight cut outside gear edges. ((photo by DirtyCory of the XLFORUM  http://xlforum.net/forums/showthread.php?t=2071153&page=3))  |
+|77-E83 gerotors. \\ Chamfered outside gear edges. ((photo by DirtyCory of the XLFORUM  https://www.xlforum.net/forum/sportster-motorcycle-forum/sportster-motorcycle-era-specific-and-model-specific/ironhead-sportster-motorcycle-talk-1957-1985/194881-let-s-study-the-77-85-oil-pump-parts-and-changes-and-when/page3?t=2071153&page=3))|L83-85 gerotors. \\ Straight cut outside gear edges. ((photo by DirtyCory of the XLFORUM https://www.xlforum.net/forum/sportster-motorcycle-forum/sportster-motorcycle-era-specific-and-model-specific/ironhead-sportster-motorcycle-talk-1957-1985/194881-let-s-study-the-77-85-oil-pump-parts-and-changes-and-when/page3?t=2071153&page=3))  |
 ===== Feed Gears =====
@@ Line 211: / Line 232: @@
 |{{:techtalk:ih:oil:77-e83_oil_pump_2_by_hippysmack.jpg?direct&300|}}|
 |  77-E83 feed gerotors installed position ((photo by Hippysmack))  |
 ===== L83-85 =====
 (26492-83) Straight cut feed gerotors.
@@ Line 228: / Line 250: @@
 (26491-83) Straight cut return gerotors: \\
-|{{:techtalk:evo:oil:l83-90_oil_pump_return_gerotors_1_by_hippysmack.jpg?direct&300|}}|{{:techtalk:evo:oil:l83-90_oil_pump_return_gerotors_2_by_hippysmack.jpg?direct&300|}}|{{:techtalk:evo:oil:l83-90_oil_pump_return_gerotors_3_by_hippysmack.jpg?direct&300|}}|
+|{{:techtalk:evo:oil:l83-90_oil_pump_return_gerotors_1_by_hippysmack.jpg?direct&300|}}|{{:techtalk:evo:oil:l83-90_oil_pump_return_gerotors_2_by_hippysmack.jpg?direct&300|}}|{{:techtalk:evo:oil:l83-90_oil_pump_return_gerotors_4_by_hippysmack.jpg?direct&300|}}|
 |  L83-90 return gerotors (26491-83) ((photos by Hippysmack))  |||
@@ Line 243: / Line 265: @@
 Check valve (26435-76A) was an upgrade in L77 and used on all L77-85 models. \\
 It has an arrow on the side for proper installation pointing up with FC to the bottom left of the arrow. \\
     * The oil pump check valve plays a role in the operation of the oil pressure switch.
@@ Line 255: / Line 276: @@
 |{{:techtalk:ih:oil:26435-76a_check_valve_-cropped-_by_dirtycory.jpg?direct&200|}}|{{:techtalk:ih:oil:77-85_oil_check_valve_1_by_hippysmack.jpg?direct&300|}}|{{:techtalk:ih:oil:77-85_oil_check_valve_6_by_hippysmack.jpg?direct&300|}}|
-|  26435-76A check valve ((photo by DirtyCory of the XLFORUM http://xlforum.net/forums/showthread.php?t=2071153&page=2))  |  With the O-ring removed, you can see the crimped 2-piece body design ((photos by Hippysmack))  ||
+|  26435-76A check valve ((photo by DirtyCory of the XLFORUM https://www.xlforum.net/forum/sportster-motorcycle-forum/sportster-motorcycle-era-specific-and-model-specific/ironhead-sportster-motorcycle-talk-1957-1985/194881-let-s-study-the-77-85-oil-pump-parts-and-changes-and-when/page2?t=2071153&page=2))  |  With the O-ring removed, you can see the crimped 2-piece body design ((photos by Hippysmack))  ||
 |{{:techtalk:ih:oil:77-85_oil_pump_check_valve_bore_by_hippysmack.jpg?direct&300|}}|{{:techtalk:ih:oil:77-85_oil_pump_check_valve_installed_by_hippysmack.jpg?direct&300|}}|
 |  The check valve sits inside the bore in the pump body as shown. Installed position (R)((photo by Hippysmack))  ||
 ===== In search of a comparable check valve =====
@@ Line 276: / Line 296: @@
 This one has a back-up O-ring on the valve. \\
 That link came from this XLF thread: \\
-[[http://xlforum.net/forums/showthread.php?t=1979566&highlight=gerotor&page=2]]
+[[https://www.xlforum.net/forum/sportster-motorcycle-forum/sportster-motorcycle-era-specific-and-model-specific/ironhead-sportster-motorcycle-talk-1957-1985/184257-oil-pump-porn/page2?t=1979566&highlight=gerotor&page=2]]
 ====== Oil Pressure Switch ======
 See also; \\
-[[techtalk:ref:trouble07|Tesing the Oil Pressure Switch]] \\
+[[techtalk:ref:svcproc30|Tesing the Oil Pressure Switch]] \\
 [[techtalk:ih:oil01#oil_pressure_switch|More on How the Ironhead Oil Pressure Switch Works]] \\
@@ Line 295: / Line 314: @@
 |{{:techtalk:ih:oil:oil_pressure_switch_0_by_hippysmack.jpg?direct&300|}}|{{:techtalk:ih:oil:oil_pressure_switch_1_by_hippysmack.jpg?direct&300|}}|{{:techtalk:ih:oil:oil_pressure_switch_3_by_hippysmack.jpg?direct&300|}}|
-|  Oil pressure switch (26554-77) ((photos by Hippysmack of the XLFORUM http://xlforum.net/forums/showthread.php?t=2071153&page=8))  |||
+|  Oil pressure switch (26554-77) ((photos by Hippysmack of the XLFORUM https://www.xlforum.net/forum/sportster-motorcycle-forum/sportster-motorcycle-era-specific-and-model-specific/ironhead-sportster-motorcycle-talk-1957-1985/194881-let-s-study-the-77-85-oil-pump-parts-and-changes-and-when/page8?t=2071153&page=8))  |||
 |{{:techtalk:ih:oil:77-81_oil_pump_oil_pressure_switch_installed.jpg?direct&300|}}|{{:techtalk:ih:oil:77_style_oil_pump_by_2_ironheadjunkie.jpg?direct&300|}}|
-|  Oil pressure switch mounted to the oil pump ((photo by Hippysmack))  |  Rubber boot pulled over the oil pressure switch ((photo by ironheadjunkie of the XLFORUM http://xlforum.net/forums/showthread.php?t=1400314&page=2))  |
+|  Oil pressure switch mounted to the oil pump ((photo by Hippysmack))  |  Rubber boot pulled over the oil pressure switch ((photo by ironheadjunkie of the XLFORUM https://www.xlforum.net/forum/sportster-motorcycle-forum/sportster-motorcycle-era-specific-and-model-specific/ironhead-sportster-motorcycle-talk-1957-1985/131846-oil-line-routing/page2?t=1400314&page=2))  |

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