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techtalk:evo:oil03 [2022/03/10 05:06]
hippysmack [Oil Pump Fittings and Oil Paths]
techtalk:evo:oil03 [2023/07/21 01:52]
hippysmack [Priming the Oil Pump]
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 ===== Oil Pump Fittings and Oil Paths ===== ===== Oil Pump Fittings and Oil Paths =====
-Different year oil pumps came with several different fittings. \\ +Different year oil pumps came with several different fittings. Part numbers and usage is labeled in the pics below. \\ 
-  63533-41 ​(or -41AStraight nipple ​fitting started out in the ironhead days in metal construction. \\ HD replaced ​it with brass fitting with the same part number. You can find this in NOS condition in metal as well as brass or zinc. \\ Colony sells cad plated ​version ​and you can also find chromed ones online.+**Note**: HD fittings are generally beefier than aftermarket fittings ​(especially from your local hardware store). \\ 
 + 
 +Some of these fitting started out in the ironhead or pre-ironhead days in metal or brass construction. \\  
 +HD later replaced ​some metal fittings ​with brass using the same part number. ​\\ 
 +You can find some in NOS condition in metal as well as brass or zinc. \\  
 +Colony sells some in cad plated ​versions ​and you can also find some in chrome ​online. ​\\ 
 + 
 +Note: \\ 
 +Fittings 26496-75 and 26496-75A are the same fitting accept the -75A version comes with lockpatch on the threads. \\ 
 +Fittings 63533-41 and 63533-41A are the same fitting accept the -41A version comes with lockpatch on the threads. \\ 
 +Fittings 62601-91 and 62601-91A are the same fitting accept the -91A version comes with lockpatch on the threads. \\
  
 |  1986-1990 Oil Pump Fittings ((photo by Hippysmack)) ​ |  1991-Up Sportster Oil Pump Fittings ((photo by Hippysmack)) ​ | |  1986-1990 Oil Pump Fittings ((photo by Hippysmack)) ​ |  1991-Up Sportster Oil Pump Fittings ((photo by Hippysmack)) ​ |
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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 / Seals ====== 
 +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). \\ 
 +All 1991-present pump to engine case gaskets will interchange without alterations. \\ 
 + 
 +^{{techtalk:​miscres:​instruction_sheet_header_4.png?​nolink&​700|}}|||| 
 +|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|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]] ))| 
 +|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| ​ | 
 +|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|:::​| ​ | 
 +|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 ======