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techtalk:evo:oil03g [2023/04/29 03:56] hippysmack [Comparing the 03-06 and the 07 Style Oil Pumps] |
techtalk:evo:oil03g [2024/01/05 03:34] (current) hippysmack |
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[[:techtalk:menu|{{ :techtalk:gototechnicalmenu.jpg|}}]] | [[:techtalk:menu|{{ :techtalk:gototechnicalmenu.jpg|}}]] | ||
====== EVO: Oiling & Lubrication - Sub-03G ====== | ====== EVO: Oiling & Lubrication - Sub-03G ====== | ||
- | ====== Comparing the 06 and the 07 Style Oil Pumps ====== | + | ====== Comparing the 98 and the 07 Style Oil Pumps ====== |
* Below is a collection of comparison pics between the (98-06 style pump parts) and the (07 and up style pump parts). Click on a pic to enlarge. | * Below is a collection of comparison pics between the (98-06 style pump parts) and the (07 and up style pump parts). Click on a pic to enlarge. | ||
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====== Volume and Flow Comparison ====== | ====== Volume and Flow Comparison ====== | ||
- | See also this XLForum discussion starting around post #140: http://xlforum.net/forums/showthread.php?t=2078814&page=14 \\ | + | See also this XLForum discussion starting around post #140: https://www.xlforum.net/forum/sportster-motorcycle-forum/sportster-motorcycle-motor-engine/sportster-motorcycle-motor-top-end/201713-1250-unhappiness-2020-edition/page14?t=2078814&page=14 \\ |
[[http://www.sportsterpedia.com/doku.php/techtalk:ref:oil22p|Click Here]] to view calculated volumes of 1977-present Sportster oil pumps. \\ | [[http://www.sportsterpedia.com/doku.php/techtalk:ref:oil22p|Click Here]] to view calculated volumes of 1977-present Sportster oil pumps. \\ | ||
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The wider tooth profile allows for more oil delivery. \\ | The wider tooth profile allows for more oil delivery. \\ | ||
It's the area between the gearset teeth (inner and outer) that determines the amount of oil delivered no matter what the OD of the gearset is. \\ | It's the area between the gearset teeth (inner and outer) that determines the amount of oil delivered no matter what the OD of the gearset is. \\ | ||
- | So the change in OD was a mechanical necessity. \\ | + | So the change in OD was more of a mechanical necessity flowing the same amount of oil as before the change. \\ |
**Tooth Profile**: \\ | **Tooth Profile**: \\ | ||
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However, the 07 feed gerotors do deliver slightly less feed oil than 86-06 pumps. \\ | However, the 07 feed gerotors do deliver slightly less feed oil than 86-06 pumps. \\ | ||
- | + | The magic is there! That explains why the feed gerotors still keep their oil moving capacity in spite of them now having less height. ((xLoneRiderx of the XLFORUM https://www.xlforum.net/forum/sportster-motorcycle-forum/sportster-motorcycle-motor-engine/sportster-motorcycle-motor-top-end/201713-1250-unhappiness-2020-edition/page16?t=2078814&page=16)) \\ | |
- | The magic is there! That explains why the feed gerotors still keep their oil moving capacity in spite of them now having less height. ((xLoneRiderx of the XLFORUM http://xlforum.net/forums/showthread.php?t=2078814&page=16)) \\ | + | |
The outer gerotors' 9 point star diameter is now larger, so the inner gerotor's 8 point star are too. \\ | The outer gerotors' 9 point star diameter is now larger, so the inner gerotor's 8 point star are too. \\ | ||
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According to the drawing, the 2007 oil pump has a 7% decrease in feed flow and a 52% increase in scavenge flow over the 1998-2006 oil pump. \\ | According to the drawing, the 2007 oil pump has a 7% decrease in feed flow and a 52% increase in scavenge flow over the 1998-2006 oil pump. \\ | ||
- | {{:techtalk:evo:oil:2006-2007_oil_pump_volume_compariison_by_xloneriderx.jpg?direct&800|}} ((drawing by xLoneRiderx of the XLFORUM http://xlforum.net/forums/showthread.php?p=5887052#post5887052)) \\ | + | {{:techtalk:evo:oil:2006-2007_oil_pump_volume_compariison_by_xloneriderx.jpg?direct&800|}} ((drawing by xLoneRiderx of the XLFORUM https://www.xlforum.net/forum/sportster-motorcycle-forum/sportster-motorcycle-motor-engine/sportster-motorcycle-motor-top-end/201713-1250-unhappiness-2020-edition/page11#post4489346)) \\ |
- | ====== Visual Differences and Dims ====== | + | |
+ | ====== Visual Differences and Dims ====== | ||
* Dimensions shown below are approximate. The 98 pump shown below is used with some probable wear. The intention is to show major differences in the two pump versions only. | * Dimensions shown below are approximate. The 98 pump shown below is used with some probable wear. The intention is to show major differences in the two pump versions only. | ||
* The outside of the pump bodies are visually the same except the 07 is slightly taller and the bottom cover has different casting numbers. | * The outside of the pump bodies are visually the same except the 07 is slightly taller and the bottom cover has different casting numbers. | ||
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|{{:techtalk:evo:oil:98-07_oil_pump_comparison_14_by_hippysmack.jpg?direct&300|}}| | |{{:techtalk:evo:oil:98-07_oil_pump_comparison_14_by_hippysmack.jpg?direct&300|}}| | ||
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|{{:techtalk:evo:oil:98-07_oil_pump_comparison_16_by_hippysmack.jpg?direct&300|}}|{{:techtalk:evo:oil:98-07_oil_pump_comparison_17_by_hippysmack.jpg?direct&300|}}|{{:techtalk:evo:oil:98-07_oil_pump_comparison_18_by_hippysmack.jpg?direct&300|}}| | |{{:techtalk:evo:oil:98-07_oil_pump_comparison_16_by_hippysmack.jpg?direct&300|}}|{{:techtalk:evo:oil:98-07_oil_pump_comparison_17_by_hippysmack.jpg?direct&300|}}|{{:techtalk:evo:oil:98-07_oil_pump_comparison_18_by_hippysmack.jpg?direct&300|}}| | ||
| 98 and 07 oil pump internals ((photos by Hippysmack of the XLFORUM)) ||| | | 98 and 07 oil pump internals ((photos by Hippysmack of the XLFORUM)) ||| | ||
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* The 98-06 pump body has two bumps inside to hold the separator plate in place with 2 separate bores for the two different O.D. gerotors. | * The 98-06 pump body has two bumps inside to hold the separator plate in place with 2 separate bores for the two different O.D. gerotors. |