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| techtalk:ref:oil06 [2022/06/23 21:47] – [Return hole in the "duck bill"] hippysmack | techtalk:ref:oil06 [2024/08/28 01:33] (current) – [77-Present Sportster Oil Pump Comparisons] hippysmack |
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| ====== REF: Oiling & Lubrication ====== | ====== REF: Oiling & Lubrication ====== |
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| ====== 77-Present Sportster Oil Pump Comparisons ====== | ====== 1977-Present Sportster Oil Pump Comparisons ====== |
| Links to more oil pump pics and dims in the Sportsterpedia; \\ | Links to more oil pump pics and dims in the Sportsterpedia; \\ |
| [[techtalk:ih:oil03#oil_pump|77-85 Oil Pump]] in the IH section of the Sportsterpedia. \\ | [[techtalk:ih:oil03#oil_pump|77-85 Oil Pump]] in the IH section of the Sportsterpedia. \\ |
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| ====== Return to Feed Ratios ====== | ====== Return to Feed Ratios ====== |
| 77-85 feed gerotors have the smallest volume and smallest of the gerotor pumps used on Sportsters. \\ | 1977-1985 feed gerotors have the smallest volume and smallest of the gerotor pumps used on Sportsters. \\ |
| 86-06 feed gerotors have the same volume. \\ | 1986-2006 feed gerotors have the same volume. \\ |
| 77-97 return gerotors have the same volume. \\ | 1977-1997 return gerotors have the same volume. \\ |
| 98-06 return gerotors have the same volume. \\ | 1998-2006 return gerotors have the same volume. \\ |
| 77-06 gerotors all have the same teeth profile (bodies changed OD but volume per height stayed the same). \\ | 1977-2006 gerotors all have the same teeth profile (bodies changed OD but volume per height stayed the same). \\ |
| 06-present are the tallest and also have a different teeth profile. \\ | 2007-present are the tallest and also have a different teeth profile. \\ |
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| * **77-85 return to feed ratio app 2.78:1** | * **77-85 return to feed ratio app 2.78:1** |
| |{{:techtalk:ref:oil:77_and_98_oil_pump_comparison.jpg?direct&300|}}|{{:techtalk:ref:oil:77_and_98_oil_pump_comparison_1_by_hippysmack.jpg?direct&300|}}| | |{{:techtalk:ref:oil:77_and_98_oil_pump_comparison.jpg?direct&300|}}|{{:techtalk:ref:oil:77_and_98_oil_pump_comparison_1_by_hippysmack.jpg?direct&300|}}| |
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| The 79, 98 and 07 pumps were bolted to and outlined on the aluminum sheet. ((photos by Hippysmack of the XLFORUM http://xlforum.net/forums/showthread.php?t=2071153&page=6)) \\ | The 79, 98 and 07 pumps were bolted to and outlined on the aluminum sheet. ((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/page6?t=2071153&page=6)) \\ |
| |{{:techtalk:ref:oil:77_and_98_oil_pump_comparison_2_by_hippysmack.jpg?direct&300|}}|{{:techtalk:ref:oil:77_and_98_oil_pump_comparison_3_by_hippysmack.jpg?direct&300|}}|{{:techtalk:ref:oil:77-98-07_oil_pump_comparison_1._by_hippysmack.jpg?direct&300|}}| | |{{:techtalk:ref:oil:77_and_98_oil_pump_comparison_2_by_hippysmack.jpg?direct&300|}}|{{:techtalk:ref:oil:77_and_98_oil_pump_comparison_3_by_hippysmack.jpg?direct&300|}}|{{:techtalk:ref:oil:77-98-07_oil_pump_comparison_1._by_hippysmack.jpg?direct&300|}}| |
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| | L83 pump body and 86-90 cover. ((photo by jlv of the XLFORUM http://xlforum.net/forums/showthread.php?p=5749850#post5749850)) | 77-85 covers w/ feed hole in arm. ((photo by Hippysmack)) | 86-90 covers without the feed hole in the arm. ((photo by Hippysmack)) | | | L83 pump body and 86-90 cover. ((photo by jlv of the XLFORUM https://www.xlforum.net/forum/sportster-motorcycle-forum/sportster-motorcycle-motor-engine/sportster-motorcycle-bottom-end/196850-oil-pump-iron-1000-1979-bizarre#post4301658)) | 77-85 covers w/ feed hole in arm. ((photo by Hippysmack)) | 86-90 covers without the feed hole in the arm. ((photo by Hippysmack)) | |
| |{{:techtalk:ref:oil:77-85_oil_pump_with_86-90_cover_by_jlv.jpg?direct&300|}}|{{:techtalk:ih:oil:77-85_oil_pump_cover_3_by_hippysmack.jpg?direct&300|}}|{{:techtalk:evo:oil:86-90_oil_pump_cover_3_by_hippysmack.jpg?direct&300|}}| | |{{:techtalk:ref:oil:77-85_oil_pump_with_86-90_cover_by_jlv.jpg?direct&300|}}|{{:techtalk:ih:oil:77-85_oil_pump_cover_3_by_hippysmack.jpg?direct&300|}}|{{:techtalk:evo:oil:86-90_oil_pump_cover_3_by_hippysmack.jpg?direct&300|}}| |
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