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techtalk:ih:oil03g [2024/01/01 18:58] hippysmack |
techtalk:ih:oil03g [2024/01/01 19:37] (current) hippysmack |
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| ===== Check Ball Seat Repair ===== | ===== Check Ball Seat Repair ===== | ||
| - | |||
| When it comes to a 'fix' for a leaky check ball; ((Dr Dick of the XLFORUM https://www.xlforum.net/forum/sportster-motorcycle-forum/sportster-motorcycle-era-specific-and-model-specific/ironhead-sportster-motorcycle-talk-1957-1985/168986-oil-pump-check-fixes/page2?t=1813185&page=2)) \\ | When it comes to a 'fix' for a leaky check ball; ((Dr Dick of the XLFORUM https://www.xlforum.net/forum/sportster-motorcycle-forum/sportster-motorcycle-era-specific-and-model-specific/ironhead-sportster-motorcycle-talk-1957-1985/168986-oil-pump-check-fixes/page2?t=1813185&page=2)) \\ | ||
| On the human side: \\ | On the human side: \\ | ||
| Line 82: | Line 81: | ||
| Basically you are reconditioning the seat where the ball sits so it creates a good seal around the ball. \\ | Basically you are reconditioning the seat where the ball sits so it creates a good seal around the ball. \\ | ||
| - | The tool on the left is a homemade check ball lapping tool used to lap the seat where the check ball sits in the oil pump (57-76). ((Toolmaker of the XLFORUM http://xlforum.net/forums/showthread.php?t=499487&highlight=check+ball+lapping+tool)) \\ | + | The tool on the left is a homemade check ball lapping tool used to lap the seat where the check ball sits in the oil pump (57-76). ((Toolmaker of the XLFORUM https://www.xlforum.net/forum/sportster-motorcycle-forum/sportster-motorcycle-era-specific-and-model-specific/ironhead-sportster-motorcycle-talk-1957-1985/72481-i-m-sick-and-tired-of-wet-sumping?t=499487&highlight=check+ball+lapping+tool)) \\ |
| It's made with a tool steel shank and a 3/8" carbide ball tip on the end. \\ | It's made with a tool steel shank and a 3/8" carbide ball tip on the end. \\ | ||
| The pocket for the ball to sit was cut with a 3/8" ball end mill then a few drops of Loctite 404 to keep it there. \\ | The pocket for the ball to sit was cut with a 3/8" ball end mill then a few drops of Loctite 404 to keep it there. \\ | ||
| - | This is used as a traditional lapping tool would be. But it's not the best idea to use lapping compound in there. ((Hopper of the XLFORUM http://xlforum.net/forums/showthread.php?t=1013445)) \\ | + | This is used as a traditional lapping tool would be. But it's not the best idea to use lapping compound in there. ((Hopper of the XLFORUM https://www.xlforum.net/forum/sportster-motorcycle-forum/sportster-motorcycle-era-specific-and-model-specific/ironhead-sportster-motorcycle-talk-1957-1985/109149-oil-pump-check-ball-seating?t=1013445)) \\ |
| Particles of the very hard lapping compound will become embedded in the soft aluminum and stay there to grind up the ball in service. \\ | Particles of the very hard lapping compound will become embedded in the soft aluminum and stay there to grind up the ball in service. \\ | ||
| Not to mention they can then come loose and circulate through your bearings. \\ | Not to mention they can then come loose and circulate through your bearings. \\ | ||
| |{{:techtalk:ref:tools:homemade_check_ball_lapping_tool_by_toolmaker.jpg?direct&300|}}| | |{{:techtalk:ref:tools:homemade_check_ball_lapping_tool_by_toolmaker.jpg?direct&300|}}| | ||
| - | | Homemade check ball lapping tool ((photo by Toolmaker of the XLFORUM http://xlforum.net/forums/showthread.php?t=499487&highlight=check+ball+lapping+tool)) | | + | | Homemade check ball lapping tool ((photo by Toolmaker of the XLFORUM https://www.xlforum.net/forum/sportster-motorcycle-forum/sportster-motorcycle-era-specific-and-model-specific/ironhead-sportster-motorcycle-talk-1957-1985/72481-i-m-sick-and-tired-of-wet-sumping?t=499487&highlight=check+ball+lapping+tool)) | |
| **The burnishing method**: \\ | **The burnishing method**: \\ | ||
| - | The tool below is a check-ball seat burnishing set. ((DaWind of the XLFORUM http://xlforum.net/forums/showthread.php?t=1013445&page=2)) \\ | + | The tool below is a check-ball seat burnishing set. ((DaWind of the XLFORUM https://www.xlforum.net/forum/sportster-motorcycle-forum/sportster-motorcycle-era-specific-and-model-specific/ironhead-sportster-motorcycle-talk-1957-1985/109149-oil-pump-check-ball-seating/page2?t=1013445&page=2)) \\ |
| The idea is to turn the ball into the seat several times, thereby smoothing it to a very fine finish. \\ | The idea is to turn the ball into the seat several times, thereby smoothing it to a very fine finish. \\ | ||
| It works quite well with these old check valve seats, but you can and do use quite a bit of force with the cast iron for a good result. \\ | It works quite well with these old check valve seats, but you can and do use quite a bit of force with the cast iron for a good result. \\ | ||
| Line 106: | Line 105: | ||
| |{{:techtalk:ref:tools:oil_pump_check_ball_lap_by_dawind.jpg?direct&300|}}| | |{{:techtalk:ref:tools:oil_pump_check_ball_lap_by_dawind.jpg?direct&300|}}| | ||
| - | | Check-ball seat burnishing set ((photo by DaWind of the XLFORUM http://xlforum.net/forums/showthread.php?t=1013445&page=2)) | | + | | Check-ball seat burnishing set ((photo by DaWind of the XLFORUM https://www.xlforum.net/forum/sportster-motorcycle-forum/sportster-motorcycle-era-specific-and-model-specific/ironhead-sportster-motorcycle-talk-1957-1985/109149-oil-pump-check-ball-seating/page2?t=1013445&page=2)) | |
| **Centering the ball to the seat**: \\ | **Centering the ball to the seat**: \\ | ||
| This was an attempt at keeping the ball centered, with a machined bolt. The very early oil pump's had a pin attached to the ball. \\ | This was an attempt at keeping the ball centered, with a machined bolt. The very early oil pump's had a pin attached to the ball. \\ | ||
| - | The information below is an extension of this video by bustert [[https://www.youtube.com/watch?v=3cSkppNr6qo&feature=youtu.be|Youtube video on the check ball and wet sumping]] ((video by bustert of the XLFORUM http://xlforum.net/forums/showthread.php?t=1813185)) \\ | + | The information below is an extension of this video by bustert [[https://www.youtube.com/watch?v=3cSkppNr6qo&feature=youtu.be|Youtube video on the check ball and wet sumping]] ((video by bustert of the XLFORUM https://www.xlforum.net/forum/sportster-motorcycle-forum/sportster-motorcycle-era-specific-and-model-specific/ironhead-sportster-motorcycle-talk-1957-1985/168986-oil-pump-check-fixes?t=1813185)) \\ |
| The spring and really does not home in on the ball, putting side loading on it and therefore not putting full force of the spring directly on top of the seat. \\ | The spring and really does not home in on the ball, putting side loading on it and therefore not putting full force of the spring directly on top of the seat. \\ | ||
| - | {{:techtalk:ih:oil:check_ball_seat_repair_2_by_bustert.jpg?direct&300|}} ((photo by bustert of the XLFORUM http://xlforum.net/forums/showthread.php?t=1813185)) {{:techtalk:ih:oil:check_ball_seat_repair_3_by_bustert.jpg?direct&300|}} ((photo by bustert of the XLFORUM http://xlforum.net/forums/showthread.php?t=1813185)) \\ | + | {{:techtalk:ih:oil:check_ball_seat_repair_2_by_bustert.jpg?direct&300|}} ((photo by bustert of the XLFORUM https://www.xlforum.net/forum/sportster-motorcycle-forum/sportster-motorcycle-era-specific-and-model-specific/ironhead-sportster-motorcycle-talk-1957-1985/168986-oil-pump-check-fixes?t=1813185)) {{:techtalk:ih:oil:check_ball_seat_repair_3_by_bustert.jpg?direct&300|}} ((photo by bustert of the XLFORUM https://www.xlforum.net/forum/sportster-motorcycle-forum/sportster-motorcycle-era-specific-and-model-specific/ironhead-sportster-motorcycle-talk-1957-1985/168986-oil-pump-check-fixes?t=1813185)) \\ |
| The second pic below is the homemade cup to fit into the hole. \\ | The second pic below is the homemade cup to fit into the hole. \\ | ||
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| The extension is 1/32" to 1/16" above the opening. \\ | The extension is 1/32" to 1/16" above the opening. \\ | ||
| - | {{:techtalk:ih:oil:check_ball_seat_repair_1_by_bustert.jpg?direct&300|}} ((photo by bustert of the XLFORUM http://xlforum.net/forums/showthread.php?t=1813185)) {{:techtalk:ih:oil:check_ball_seat_repair_4_by_bustert.jpg?direct&300|}} ((photo by bustert of the XLFORUM http://xlforum.net/forums/showthread.php?t=1813185)) {{:techtalk:ih:oil:oil_pump_check_ball_fix_4_by_bustert.jpg?direct&300|}} ((photo by bustert of the XLFORUM http://xlforum.net/forums/showthread.php?t=1813185)) \\ | + | {{:techtalk:ih:oil:check_ball_seat_repair_1_by_bustert.jpg?direct&300|}} ((photo by bustert of the XLFORUM https://www.xlforum.net/forum/sportster-motorcycle-forum/sportster-motorcycle-era-specific-and-model-specific/ironhead-sportster-motorcycle-talk-1957-1985/168986-oil-pump-check-fixes?t=1813185)) {{:techtalk:ih:oil:check_ball_seat_repair_4_by_bustert.jpg?direct&300|}} ((photo by bustert of the XLFORUM https://www.xlforum.net/forum/sportster-motorcycle-forum/sportster-motorcycle-era-specific-and-model-specific/ironhead-sportster-motorcycle-talk-1957-1985/168986-oil-pump-check-fixes?t=1813185)) {{:techtalk:ih:oil:oil_pump_check_ball_fix_4_by_bustert.jpg?direct&300|}} ((photo by bustert of the XLFORUM https://www.xlforum.net/forum/sportster-motorcycle-forum/sportster-motorcycle-era-specific-and-model-specific/ironhead-sportster-motorcycle-talk-1957-1985/168986-oil-pump-check-fixes?t=1813185)) \\ |
| **Cutting a spring seat in the check ball**: \\ | **Cutting a spring seat in the check ball**: \\ | ||
| Line 129: | Line 128: | ||
| Since the ball is basically captured, the seat sides should conform to each other in short order. \\ | Since the ball is basically captured, the seat sides should conform to each other in short order. \\ | ||
| - | {{:techtalk:ih:oil:oil_pump_check_ball_fix_1_by_bustert.jpg?direct&300|}} ((photo by bustert of the XLFORUM http://xlforum.net/forums/showthread.php?t=1347614)) {{:techtalk:ih:oil:oil_pump_check_ball_fix_2_by_bustert.jpg?direct&300|}} ((photo by bustert of the XLFORUM http://xlforum.net/forums/showthread.php?t=1347614)) {{:techtalk:ih:oil:oil_pump_check_ball_fix_3_by_bustert.jpg?direct&300|}} ((photo by bustert of the XLFORUM http://xlforum.net/forums/showthread.php?t=1347614)) \\ | + | {{:techtalk:ih:oil:oil_pump_check_ball_fix_1_by_bustert.jpg?direct&300|}} ((photo by bustert of the XLFORUM https://www.xlforum.net/forum/sportster-motorcycle-forum/sportster-motorcycle-era-specific-and-model-specific/ironhead-sportster-motorcycle-talk-1957-1985/129161-while-waiting-on-the-paint-to-dry-and-we-thought-it-was-the-ballcheck?t=1347614)) {{:techtalk:ih:oil:oil_pump_check_ball_fix_2_by_bustert.jpg?direct&300|}} ((photo by bustert of the XLFORUM https://www.xlforum.net/forum/sportster-motorcycle-forum/sportster-motorcycle-era-specific-and-model-specific/ironhead-sportster-motorcycle-talk-1957-1985/129161-while-waiting-on-the-paint-to-dry-and-we-thought-it-was-the-ballcheck?t=1347614)) {{:techtalk:ih:oil:oil_pump_check_ball_fix_3_by_bustert.jpg?direct&300|}} ((photo by bustert of the XLFORUM https://www.xlforum.net/forum/sportster-motorcycle-forum/sportster-motorcycle-era-specific-and-model-specific/ironhead-sportster-motorcycle-talk-1957-1985/129161-while-waiting-on-the-paint-to-dry-and-we-thought-it-was-the-ballcheck?t=1347614)) \\ |
| **Spring pressure**: \\ | **Spring pressure**: \\ | ||
| - | The stock 1974 sportster spring has a collapse rate of 2.5 pounds. The difference between the cup hole of .220" and the original pump hole of .312" is .092". ((bustert of the XLFORUM http://xlforum.net/forums/showthread.php?t=1813185&page=2)) \\ | + | The stock 1974 sportster spring has a collapse rate of 2.5 pounds. The difference between the cup hole of .220" and the original pump hole of .312" is .092". ((bustert of the XLFORUM https://www.xlforum.net/forum/sportster-motorcycle-forum/sportster-motorcycle-era-specific-and-model-specific/ironhead-sportster-motorcycle-talk-1957-1985/168986-oil-pump-check-fixes/page2?t=1813185&page=2)) \\ |
| Now that sounds like a lot. \\ | Now that sounds like a lot. \\ | ||
| But run the sizes at a given psi through an orifice flow calculator and you will see there isn’t that much difference, especially at lower pressures. \\ | But run the sizes at a given psi through an orifice flow calculator and you will see there isn’t that much difference, especially at lower pressures. \\ | ||
| Line 149: | Line 148: | ||
| Even at idle, when the pressure would be around 3 psi, the ball movement toward the seat would increase the output of the pump. \\ | Even at idle, when the pressure would be around 3 psi, the ball movement toward the seat would increase the output of the pump. \\ | ||
| Now if you have a crappy high clearance pump with a lot of slip, the pump needs replacing. \\ | Now if you have a crappy high clearance pump with a lot of slip, the pump needs replacing. \\ | ||
| - | |||
| ===== Shaft Seal Repair ===== | ===== Shaft Seal Repair ===== | ||
| - | The leaking check ball is the most popular theory out there. ((XLFREAK of the XLFORUM http://xlforum.net/forums/showthread.php?t=1347614)) \\ | + | The leaking check ball is the most popular theory out there. ((XLFREAK of the XLFORUM https://www.xlforum.net/forum/sportster-motorcycle-forum/sportster-motorcycle-era-specific-and-model-specific/ironhead-sportster-motorcycle-talk-1957-1985/129161-while-waiting-on-the-paint-to-dry-and-we-thought-it-was-the-ballcheck?t=1347614)) \\ |
| However, the check ball can be perfectly good and the bike will still wet sump. \\ | However, the check ball can be perfectly good and the bike will still wet sump. \\ | ||
| The oil can go right up the pump shaft directly into the cam box. \\ | The oil can go right up the pump shaft directly into the cam box. \\ | ||
| Line 207: | Line 205: | ||
| Below are some ideas for fixing a leaky shaft seal. \\ | Below are some ideas for fixing a leaky shaft seal. \\ | ||
| - | ==== By bustert ==== | ||
| + | ==== By bustert ==== | ||
| Normally, you'd use precision equipment for this. However, below shows how you can do the job with common home tools. \\ | Normally, you'd use precision equipment for this. However, below shows how you can do the job with common home tools. \\ | ||
| The cost of this project would be $4.00 U.S. for the bushing and whatever you can find a milling bit for. \\ | The cost of this project would be $4.00 U.S. for the bushing and whatever you can find a milling bit for. \\ | ||
| Line 234: | Line 232: | ||
| These plates with extension can be made from regular steel and tubing. \\ | These plates with extension can be made from regular steel and tubing. \\ | ||
| - | {{:techtalk:ih:oil:oil_pump_mod_1_by_bustert.jpg?direct&250|}} ((photo by bustert of the XLFORUM http://xlforum.net/forums/showthread.php?p=5614383#post5614383)) \\ | + | {{:techtalk:ih:oil:oil_pump_mod_1_by_bustert.jpg?direct&250|}} ((photo by bustert of the XLFORUM https://www.xlforum.net/forum/sportster-motorcycle-forum/sportster-motorcycle-era-specific-and-model-specific/ironhead-sportster-motorcycle-talk-1957-1985/191819-took-up-the-challenge#post5614383)) \\ |
| - | {{:techtalk:ih:oil:oil_pump_mod_2_by_bustert.jpg?direct&300|}} ((photo by bustert of the XLFORUM http://xlforum.net/forums/showthread.php?p=5614383#post5614383)) {{:techtalk:ih:oil:oil_pump_mod_3_by_bustert.jpg?direct&250|}} ((photo by bustert of the XLFORUM http://xlforum.net/forums/showthread.php?p=5614383#post5614383)) {{:techtalk:ih:oil:oil_pump_mod_4_by_bustert.jpg?direct&250|}} ((photo by bustert of the XLFORUM http://xlforum.net/forums/showthread.php?p=5614383#post5614383)) \\ | + | {{:techtalk:ih:oil:oil_pump_mod_2_by_bustert.jpg?direct&300|}} ((photo by bustert of the XLFORUM https://www.xlforum.net/forum/sportster-motorcycle-forum/sportster-motorcycle-era-specific-and-model-specific/ironhead-sportster-motorcycle-talk-1957-1985/191819-took-up-the-challenge#post5614383)) {{:techtalk:ih:oil:oil_pump_mod_3_by_bustert.jpg?direct&250|}} ((photo by bustert of the XLFORUM https://www.xlforum.net/forum/sportster-motorcycle-forum/sportster-motorcycle-era-specific-and-model-specific/ironhead-sportster-motorcycle-talk-1957-1985/191819-took-up-the-challenge#post5614383)) {{:techtalk:ih:oil:oil_pump_mod_4_by_bustert.jpg?direct&250|}} ((photo by bustert of the XLFORUM https://www.xlforum.net/forum/sportster-motorcycle-forum/sportster-motorcycle-era-specific-and-model-specific/ironhead-sportster-motorcycle-talk-1957-1985/191819-took-up-the-challenge#post5614383)) \\ |
| - | {{:techtalk:ih:oil:oil_pump_mod_5_by_bustert.jpg?direct&300|}} ((photo by bustert of the XLFORUM http://xlforum.net/forums/showthread.php?p=5614383#post5614383)) {{:techtalk:ih:oil:oil_pump_mod_6_by_bustert.jpg?direct&300|}} ((photo by bustert of the XLFORUM http://xlforum.net/forums/showthread.php?p=5614383#post5614383)) {{:techtalk:ih:oil:oil_pump_mod_7_by_bustert.jpg?direct&250|}} ((photo by bustert of the XLFORUM http://xlforum.net/forums/showthread.php?p=5614383#post5614383)) \\ | + | {{:techtalk:ih:oil:oil_pump_mod_5_by_bustert.jpg?direct&300|}} ((photo by bustert of the XLFORUM https://www.xlforum.net/forum/sportster-motorcycle-forum/sportster-motorcycle-era-specific-and-model-specific/ironhead-sportster-motorcycle-talk-1957-1985/191819-took-up-the-challenge#post5614383)) {{:techtalk:ih:oil:oil_pump_mod_6_by_bustert.jpg?direct&300|}} ((photo by bustert of the XLFORUM https://www.xlforum.net/forum/sportster-motorcycle-forum/sportster-motorcycle-era-specific-and-model-specific/ironhead-sportster-motorcycle-talk-1957-1985/191819-took-up-the-challenge#post5614383)) {{:techtalk:ih:oil:oil_pump_mod_7_by_bustert.jpg?direct&250|}} ((photo by bustert of the XLFORUM https://www.xlforum.net/forum/sportster-motorcycle-forum/sportster-motorcycle-era-specific-and-model-specific/ironhead-sportster-motorcycle-talk-1957-1985/191819-took-up-the-challenge#post5614383)) \\ |
| - | ==== By Ferrous Head ==== | + | |
| + | ==== By Ferrous Head ==== | ||
| The pump already has an oil seal in the body of the pump. \\ | The pump already has an oil seal in the body of the pump. \\ | ||
| This seal stops oil from leaking past the shaft on the scavenge side and into the feed side gears. \\ | This seal stops oil from leaking past the shaft on the scavenge side and into the feed side gears. \\ | ||
| Line 267: | Line 265: | ||
| Click on a pic to enlarge. \\ | Click on a pic to enlarge. \\ | ||
| - | {{:techtalk:ih:oil:oil_pump_fix_2_by_ferrous_head.jpg?direct&300|}} ((drawing by Ferrous Head of the XLFORUM http://xlforum.net/forums/showthread.php?t=2074153)) | + | {{:techtalk:ih:oil:oil_pump_fix_2_by_ferrous_head.jpg?direct&300|}} ((drawing by Ferrous Head of the XLFORUM https://www.xlforum.net/forum/sportster-motorcycle-forum/sportster-motorcycle-era-specific-and-model-specific/ironhead-sportster-motorcycle-talk-1957-1985/197506-wet-sump-ifo-fix-and-tools?t=2074153)) |
| - | {{:techtalk:ih:oil:oil_pump_fix_1_by_ferrous_head.jpg?direct&300|}} ((photo by Ferrous Head of the XLFORUM http://xlforum.net/forums/showthread.php?t=2074153)) \\ | + | {{:techtalk:ih:oil:oil_pump_fix_1_by_ferrous_head.jpg?direct&300|}} ((photo by Ferrous Head of the XLFORUM https://www.xlforum.net/forum/sportster-motorcycle-forum/sportster-motorcycle-era-specific-and-model-specific/ironhead-sportster-motorcycle-talk-1957-1985/197506-wet-sump-ifo-fix-and-tools?t=2074153)) \\ |
| Here are pics of the tools (made from mild steel) that were made for installation. \\ | Here are pics of the tools (made from mild steel) that were made for installation. \\ | ||
| Line 277: | Line 275: | ||
| Also below is the tool to install the oil seal. Not really necessary but it makes the whole job faster and easier to do. \\ | Also below is the tool to install the oil seal. Not really necessary but it makes the whole job faster and easier to do. \\ | ||
| - | {{:techtalk:ih:oil:oil_pump_fix_3_by_ferrous_head.jpg?direct&300|}} ((photo by Ferrous Head of the XLFORUM http://xlforum.net/forums/showthread.php?t=2074153)) {{:techtalk:ih:oil:oil_pump_fix_4_by_ferrous_head.jpg?direct&300|}} ((photo by Ferrous Head of the XLFORUM http://xlforum.net/forums/showthread.php?t=2074153)) {{:techtalk:ih:oil:oil_pump_fix_5_by_ferrous_head.jpg?direct&300|}} ((photo by Ferrous Head of the XLFORUM http://xlforum.net/forums/showthread.php?t=2074153)) \\ | + | {{:techtalk:ih:oil:oil_pump_fix_3_by_ferrous_head.jpg?direct&300|}} ((photo by Ferrous Head of the XLFORUM https://www.xlforum.net/forum/sportster-motorcycle-forum/sportster-motorcycle-era-specific-and-model-specific/ironhead-sportster-motorcycle-talk-1957-1985/197506-wet-sump-ifo-fix-and-tools?t=2074153)) {{:techtalk:ih:oil:oil_pump_fix_4_by_ferrous_head.jpg?direct&300|}} ((photo by Ferrous Head of the XLFORUM https://www.xlforum.net/forum/sportster-motorcycle-forum/sportster-motorcycle-era-specific-and-model-specific/ironhead-sportster-motorcycle-talk-1957-1985/197506-wet-sump-ifo-fix-and-tools?t=2074153)) {{:techtalk:ih:oil:oil_pump_fix_5_by_ferrous_head.jpg?direct&300|}} ((photo by Ferrous Head of the XLFORUM https://www.xlforum.net/forum/sportster-motorcycle-forum/sportster-motorcycle-era-specific-and-model-specific/ironhead-sportster-motorcycle-talk-1957-1985/197506-wet-sump-ifo-fix-and-tools?t=2074153)) \\ |
| ==== By needspeed ==== | ==== By needspeed ==== | ||
| - | |||
| When the pump is together there is a 3/16" space between the bottom of the breather sleeve and the top cover. \\ | When the pump is together there is a 3/16" space between the bottom of the breather sleeve and the top cover. \\ | ||
| Enough room for a 1/8" thick insert that holds the seal and is tight to the I.D. of the cover tube. \\ | Enough room for a 1/8" thick insert that holds the seal and is tight to the I.D. of the cover tube. \\ | ||
| Line 287: | Line 284: | ||
| This was made from aluminum on a lathe. \\ | This was made from aluminum on a lathe. \\ | ||
| - | {{:techtalk:ih:oil:oil_pump_mod_1_by_needspeed.jpg?direct&300|}} ((drawing by needspeed of the XLFORUM http://xlforum.net/forums/showthread.php?p=5614923#post5614923)) \\ | + | {{:techtalk:ih:oil:oil_pump_mod_1_by_needspeed.jpg?direct&300|}} ((drawing by needspeed of the XLFORUM https://www.xlforum.net/forum/sportster-motorcycle-forum/sportster-motorcycle-era-specific-and-model-specific/ironhead-sportster-motorcycle-talk-1957-1985/191819-took-up-the-challenge#post4147031)) \\ |
