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| techtalk:ih:oil03u [2025/10/21 03:00] – hippysmack | techtalk:ih:oil03u [2025/10/21 03:14] (current) – [1988-up XR-750 Oil Pump] hippysmack |
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| |45830-48|62570-83|25259-93A|63541-74R|26227-58|11159|:::|||| | |45830-48|62570-83|25259-93A|63541-74R|26227-58|11159|:::|||| |
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| Pump Body 26217-88R \\ | Below is the magnesium pump body (26217-88R) and parts including the covers and gears. ((pics by Flattracker94 of the XLFORUM https://www.xlforum.net/forum/sportster-motorcycle-forum/sportster-motorcycle-era-specific-and-model-specific/xr-sportster-motorcycle-talk-xr750-xr1000-xr1200/xr-750/187566-xr750-engine-from-rag-to-ripper/page4)) \\ |
| This is just the body without upper and lower covers. ((photos courtesy of ROBERT EVANS)) \\ | |
| {{:techtalk:ih:oil:xr-750_oil_pump_body_26217-88r_pic1_by_robert_evans.jpg?direct&300|}} {{:techtalk:ih:oil:xr-750_oil_pump_body_26217-88r_pic2_by_robert_evans.jpg?direct&300|}} {{:techtalk:ih:oil:xr-750_oil_pump_body_26217-88r_pic3_by_robert_evans.jpg?direct&300|}} \\ | |
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| {{:techtalk:ih:oil:xr-750_oil_pump_body_26217-88r_pic4_by_robert_evans.jpg?direct&300|}} {{:techtalk:ih:oil:xr-750_oil_pump_body_26217-88r_pic5_by_robert_evans.jpg?direct&300|}} {{:techtalk:ih:oil:xr-750_oil_pump_body_26217-88r_pic6_by_robert_evans.jpg?direct&300|}} \\ | |
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| Below is the original magnesium body pump showing the covers and gears. ((pics by Flattracker94 of the XLFORUM https://www.xlforum.net/forum/sportster-motorcycle-forum/sportster-motorcycle-era-specific-and-model-specific/xr-sportster-motorcycle-talk-xr750-xr1000-xr1200/xr-750/187566-xr750-engine-from-rag-to-ripper/page4)) \\ | |
| The left side of this pump has 5/8" dia. fitting for scavenging the sump and the 3/8" dia. for oil supply from the tank. The right side of the pump has ball/spring check valve and 3/8" dia. oil return line to tank. The front side of the pump body has NPT plugs to block off passages from manufacturing/machining oil galleys. Can't make this pump any smaller and no reason to make it bigger, adding weight. Also the pump sits very close to the right side lower frame tube with very little clearance. \\ | The left side of this pump has 5/8" dia. fitting for scavenging the sump and the 3/8" dia. for oil supply from the tank. The right side of the pump has ball/spring check valve and 3/8" dia. oil return line to tank. The front side of the pump body has NPT plugs to block off passages from manufacturing/machining oil galleys. Can't make this pump any smaller and no reason to make it bigger, adding weight. Also the pump sits very close to the right side lower frame tube with very little clearance. \\ |
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| {{:techtalk:ih:oil:1988-up_xr-750_oil_pump_pic2_by_flattracker94.jpg?direct&400|}} {{:techtalk:ih:oil:1988-up_xr-750_oil_pump_pic3_by_flattracker94.jpg?direct&400|}} \\ | {{:techtalk:ih:oil:1988-up_xr-750_oil_pump_pic2_by_flattracker94.jpg?direct&400|}} {{:techtalk:ih:oil:1988-up_xr-750_oil_pump_pic3_by_flattracker94.jpg?direct&400|}} \\ |
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| {{:techtalk:ih:oil:1988-up_xr-750_oil_pump_pic4_by_flattracker94.jpg?direct&400|}} {{:techtalk:ih:oil:1988-up_xr-750_oil_pump_pic5_by_flattracker94.jpg?direct&400|}} \\ | {{:techtalk:ih:oil:1988-up_xr-750_oil_pump_pic4_by_flattracker94.jpg?direct&400|}} {{:techtalk:ih:oil:1988-up_xr-750_oil_pump_pic5_by_flattracker94.jpg?direct&400|}} \\ |
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| | And here is the aluminum pump body (26217-88R): \\ |
| | This is just the body without upper and lower covers. ((photos courtesy of ROBERT EVANS)) \\ |
| | {{:techtalk:ih:oil:xr-750_oil_pump_body_26217-88r_pic1_by_robert_evans.jpg?direct&300|}} {{:techtalk:ih:oil:xr-750_oil_pump_body_26217-88r_pic2_by_robert_evans.jpg?direct&300|}} {{:techtalk:ih:oil:xr-750_oil_pump_body_26217-88r_pic3_by_robert_evans.jpg?direct&300|}} \\ |
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| | {{:techtalk:ih:oil:xr-750_oil_pump_body_26217-88r_pic4_by_robert_evans.jpg?direct&300|}} {{:techtalk:ih:oil:xr-750_oil_pump_body_26217-88r_pic5_by_robert_evans.jpg?direct&300|}} {{:techtalk:ih:oil:xr-750_oil_pump_body_26217-88r_pic6_by_robert_evans.jpg?direct&300|}} \\ |
| ====== Feed Bypass System ====== | ====== Feed Bypass System ====== |
| ===== 1958-1968 KR, KRTT, KHRTT, XLR, XLRTT and 1970 Iron XR-750 Pump ===== | ===== 1958-1968 KR, KRTT, KHRTT, XLR, XLRTT and 1970 Iron XR-750 Pump ===== |
