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techtalk:evo:oil03 [2022/10/01 00:48]
hippysmack [Oil Pump Gaskets]
techtalk:evo:oil03 [2023/07/21 01:52]
hippysmack [Priming the Oil Pump]
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     * If you let it sit long enough, oil will gravity drain inside the pump and prime it.     * If you let it sit long enough, oil will gravity drain inside the pump and prime it.
     * Another way to prime the pump is to use assembly lube on the gerotors and inside of the pump before installing it. ((aswracing of the XLFORUM http://​xlforum.net/​forums/​showthread.php?​p=4805186#​post4805186)) \\ Then you have an instant hydraulic seal to help the oil pump suck oil from the hose.     * Another way to prime the pump is to use assembly lube on the gerotors and inside of the pump before installing it. ((aswracing of the XLFORUM http://​xlforum.net/​forums/​showthread.php?​p=4805186#​post4805186)) \\ Then you have an instant hydraulic seal to help the oil pump suck oil from the hose.
-    * You can also using a large syringe with a tapered tip inserted into the oil supply hose on the bottom of the oil tank. ((ericfreeman of the XLFORUM http://​xlforum.net/​forums/​showthread.php?​p=5751479#​post5751479)) \\ Then you can force feed oil the pump and on to the engine using this technique ​and it avoids having to mess with the sending unit.+    * You can also using a large syringe with a tapered tip inserted into the oil supply hose on the bottom of the oil tank. ((ericfreeman of the XLFORUM http://​xlforum.net/​forums/​showthread.php?​p=5751479#​post5751479)) \\ Then you can force feed oil to the pump and on to the engine using this technique.
 \\ \\
 ====== Oil Pump - Complete Unit Part Numbers ====== ====== Oil Pump - Complete Unit Part Numbers ======
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 http://​xlforum.net/​forums/​showthread.php?​t=1738158 http://​xlforum.net/​forums/​showthread.php?​t=1738158
  
-====== Oil Pump Gaskets ======+====== Oil Pump Gaskets ​/ Seals ======
 Note: all 1977-present Sportster oil pump to engine mounting gaskets have app the same bolt pattern holes. \\ Note: all 1977-present Sportster oil pump to engine mounting gaskets have app the same bolt pattern holes. \\
 The main difference is 1977-1990 gaskets are longer to match their longer snout oil pumps (these can be cut down to fit 91-up pumps). \\ The main difference is 1977-1990 gaskets are longer to match their longer snout oil pumps (these can be cut down to fit 91-up pumps). \\
-All 1991-present gaskets will interchange without alterations. \\+All 1991-present ​pump to engine case gaskets will interchange without alterations. \\
  
 ^{{techtalk:​miscres:​instruction_sheet_header_4.png?​nolink&​700|}}|||| ^{{techtalk:​miscres:​instruction_sheet_header_4.png?​nolink&​700|}}||||
 |Year Model|Part#​|Notes|Pics| |Year Model|Part#​|Notes|Pics|
 |1977-1990 Sportster|26495-75|Oil pump to engine case mounting gasket|{{ :​techtalk:​evo:​oil:​1977-1990_sportster_oil_pump_mounting_gasket_26495-75_by_sum-body1.jpg?​linkonly |Pic}} ((photo courtesy of Ebay seller, Sum-body'​s Harley Parts, [[https://​www.ebay.com/​str/​sumbodysharleyparts|Link to Ebay Store]] ))  | |1977-1990 Sportster|26495-75|Oil pump to engine case mounting gasket|{{ :​techtalk:​evo:​oil:​1977-1990_sportster_oil_pump_mounting_gasket_26495-75_by_sum-body1.jpg?​linkonly |Pic}} ((photo courtesy of Ebay seller, Sum-body'​s Harley Parts, [[https://​www.ebay.com/​str/​sumbodysharleyparts|Link to Ebay Store]] ))  |
-|1986-E1987 Sportster|26433-77|Check valve O-ring|{{ :​techtalk:​ih:​oil:​1977-e1987_sportster_oil_pump_o-ring_26433-77_by_animalhouse2010.jpg?​linkonly |Pic}} ((photo courtesy of Ebay seller, animalhouse2010,​ [[https://​www.ebay.com/​str/​animalhouse2010?​_trksid=p2047675.l2563|Link to Ebay store:]] ))| +|1977-1990 Sportster|26434-76A|Pump cover to body O-ring seal \\ Can also use part #26434-76|{{ :​techtalk:​ih:​oil:​1977-1990_sportster_oil_pump_cover_o-ring_26434-76_by_morlel32.jpg?​linkonly |Pic}} ((photo courtesy of C & M Sales, [[https://​www.ebay.com/​str/​everythingmotorcycleparts?​_trksid=p2047675.m3561.l2563|Link to Ebay Store]] ))|
-|1977-1990 Sportster|26434-76 \\ 26434-76A|Big o-ring between pump body and cover \\ (cover seal) Updated ​part# retros to 1977|{{ :​techtalk:​ih:​oil:​1977-1990_sportster_oil_pump_cover_o-ring_26434-76_by_morlel32.jpg?​linkonly |Pic}} ((photo courtesy of C & M Sales, [[https://​www.ebay.com/​str/​everythingmotorcycleparts?​_trksid=p2047675.m3561.l2563|Link to Ebay Store]] ))|+
 |1983-1990 Sportster|12036A|Shaft oil seal between divider plates. \\ Use only with outer plate 26493-75A|{{ :​techtalk:​ih:​oil:​1983-1990_sportster_oil_pump_shaft_seal_12036a_by_boneyard_cycles.jpg?​linkonly |Pic}} ((photos courtesy of Boneyard Cycles in Melbourne, FL))| |1983-1990 Sportster|12036A|Shaft oil seal between divider plates. \\ Use only with outer plate 26493-75A|{{ :​techtalk:​ih:​oil:​1983-1990_sportster_oil_pump_shaft_seal_12036a_by_boneyard_cycles.jpg?​linkonly |Pic}} ((photos courtesy of Boneyard Cycles in Melbourne, FL))|
 |1991-1993 Sportster|26495-89|Oil pump to engine case mounting gasket \\ All 3 gaskets will interchange in the case of \\ finding a NOS gasket| ​ | |1991-1993 Sportster|26495-89|Oil pump to engine case mounting gasket \\ All 3 gaskets will interchange in the case of \\ finding a NOS gasket| ​ |
 |1994-2003 Sportster|26495-89A|:::​|{{ :​techtalk:​evo:​oil:​1994-2003_sportster_oil_pump_mounting_gasket_26495-89a_by_sum-body1.jpg?​linkonly |Pic}} ((photo courtesy of Ebay seller, Sum-body'​s Harley Parts, [[https://​www.ebay.com/​str/​sumbodysharleyparts|Link to Ebay Store]] ))| |1994-2003 Sportster|26495-89A|:::​|{{ :​techtalk:​evo:​oil:​1994-2003_sportster_oil_pump_mounting_gasket_26495-89a_by_sum-body1.jpg?​linkonly |Pic}} ((photo courtesy of Ebay seller, Sum-body'​s Harley Parts, [[https://​www.ebay.com/​str/​sumbodysharleyparts|Link to Ebay Store]] ))|
 |2004-Present Sportster|26495-89B|:::​| ​ | |2004-Present Sportster|26495-89B|:::​| ​ |
 +|1991-Present Sportster|26434-91|Pump cover to body O-ring seal|{{ :​techtalk:​evo:​oil:​1991-present_sportster_pump_cover_to_body_o-ring_seal_26434-91_by_57harleyrider.jpg?​linkonly |Pic}} ((photos courtesy of Ebay seller, 57harleyrider. [[https://​www.ebay.com/​str/​57harleyrider|Link to Ebay Store]] ))|
 +
 +===== Leaky gaskets and hose connections =====
 +==== Internal leaks ====
 +Generally, oil will leak into the motor on shutdown (especially on extended shutdown periods). \\
 +For more information on that, [[techtalk:​ref:​oil10|Click Here]] to view "Sit Sumping"​ in the REF section of the Sportsterpedia. \\
 +
 +Below is concerning an issue with gaskets or seals where either oil / air or both leak into the motor while riding. \\
 + 
 +{{:​techtalk:​ih:​oil:​1977-up_sportster_oil_pump_internal_gasket_leak_by_hippysmack.gif?​direct|}}
  
 ====== Oil Pump Date Code ====== ====== Oil Pump Date Code ======