Differences
This shows you the differences between two versions of the page.
| Both sides previous revision Previous revision Next revision | Previous revision Last revision Both sides next revision | ||
|
techtalk:ih:oil03g [2021/02/16 22:43] hippysmack [57-76 Oil Pump Damage and Repair] |
techtalk:ih:oil03g [2024/01/01 18:58] hippysmack |
||
|---|---|---|---|
| Line 6: | Line 6: | ||
| * [[https://www.youtube.com/watch?v=Ry1ZsiVfPJI|Youtube video on an oil feed seal]]. Far easier and non destructive. ((video by bustert of the XLFORUM)) | * [[https://www.youtube.com/watch?v=Ry1ZsiVfPJI|Youtube video on an oil feed seal]]. Far easier and non destructive. ((video by bustert of the XLFORUM)) | ||
| - | ====== Leak at Oil Pressure Switch ====== | + | ====== Leaking Around Oil Pressure Switch Connection====== |
| + | If you have a leak from the oil pressure switch nipple area, 99% of the time it is a cracked body. ((Dr Dick of the XLFORUM https://www.xlforum.net/forum/sportster-motorcycle-forum/sportster-motorcycle-era-specific-and-model-specific/ironhead-sportster-motorcycle-talk-1957-1985/175074-66-xlch-oil-pump-concerns/page2?t=1878331&page=2)) \\ | ||
| + | Pull the 1" hex nut and look for a crack on the flat face of the body at 6:00. \\ | ||
| + | The crack will pass from the center hole, thru the small hole to outside of the body. \\ | ||
| + | |||
| + | {{:techtalk:ih:oil:1966_oil_pump_leak_by_ediv.jpg?direct&300|}} ((photo by ediv of the XLFORUM https://www.xlforum.net/forum/sportster-motorcycle-forum/sportster-motorcycle-era-specific-and-model-specific/ironhead-sportster-motorcycle-talk-1957-1985/175074-66-xlch-oil-pump-concerns?t=1878331)) {{:techtalk:ih:oil:77-85_sportster_oil_pump_cracked_by_canadiantux.jpg?direct&300|}} ((photo by CanadianTux of the XLFORUM)) \\ | ||
| ====== Fixing Leaky Pump from Sit Sumping ====== | ====== Fixing Leaky Pump from Sit Sumping ====== | ||
| - | Oil getting into the crankcase from the act of the bike just sitting still is a common occurrence. ((Dr Dick of the XLFORUM http://xlforum.net/forums/showthread.php?t=1813185&page=2 of the XLFORUM http://xlforum.net/forums/showthread.php?t=1813185&page=2)) \\ | + | Oil getting into the crankcase from the act of the bike just sitting still is a common occurrence. ((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 and 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&page=2)) \\ |
| It is commonly blamed on the oil pump check valve (ball) allowing oil from the oil tank to seep past it and flood the engine. \\ | It is commonly blamed on the oil pump check valve (ball) allowing oil from the oil tank to seep past it and flood the engine. \\ | ||
| But it can also be coming in from the clearances of the gears as well as from the shaft seal between the feed and return gears. \\ | But it can also be coming in from the clearances of the gears as well as from the shaft seal between the feed and return gears. \\ | ||
| ==== Testing the oil pump for leaks ==== | ==== Testing the oil pump for leaks ==== | ||
| - | |||
| You could apply oil via the oil tank to the inlet nipple on an installed pump and observe if oil is leaking through the check into the discharge hole to the engine. \\ | You could apply oil via the oil tank to the inlet nipple on an installed pump and observe if oil is leaking through the check into the discharge hole to the engine. \\ | ||
| There is no reason to take anything but the front fitting of the pump off. \\ | There is no reason to take anything but the front fitting of the pump off. \\ | ||
| Line 26: | Line 30: | ||
| No oil in catch can now = a good check valve (ball). \\ | No oil in catch can now = a good check valve (ball). \\ | ||
| - | Another way to check the system would be to remove the pump, dis-assemble it and blank it off. ((bustert of the XLFORUM http://xlforum.net/forums/showthread.php?t=1813185)) \\ | + | Another way to check the system would be to remove the pump, dis-assemble it and blank it off. ((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)) \\ |
| Then you could pull a vacuum from the inlet nipple to see it the system is functional. \\ | Then you could pull a vacuum from the inlet nipple to see it the system is functional. \\ | ||
| You could apply oil via a container to the nipple on a ready, install the pump and observe. \\ | You could apply oil via a container to the nipple on a ready, install the pump and observe. \\ | ||
| Then you can see if oil is leaking through the discharge hole to the engine or out the return to tank hole. \\ | Then you can see if oil is leaking through the discharge hole to the engine or out the return to tank hole. \\ | ||
| This would indicate ball or shaft. Just add oil until it leaks, easy to calculate hydrostatic head to know at what pressure it will leak at. \\ | This would indicate ball or shaft. Just add oil until it leaks, easy to calculate hydrostatic head to know at what pressure it will leak at. \\ | ||
| - | |||
| It is better to know the problem than to throw money at it. \\ | It is better to know the problem than to throw money at it. \\ | ||
| + | |||
| ===== Check Ball Seat Repair ===== | ===== Check Ball Seat Repair ===== | ||
| - | When it comes to a 'fix' for a leaky check ball; ((Dr Dick of the XLFORUM http://xlforum.net/forums/showthread.php?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: \\ | ||
| The drive to better the way something works stands on its own and it does bring rewards (usually thru a string of failures). \\ | The drive to better the way something works stands on its own and it does bring rewards (usually thru a string of failures). \\ | ||
| Line 61: | Line 65: | ||
| Over time, the ball will actually touch the shoulder and not seal on the bevel. \\ | Over time, the ball will actually touch the shoulder and not seal on the bevel. \\ | ||
| A little indigo paste on the ball will tell if this is happening. \\ | A little indigo paste on the ball will tell if this is happening. \\ | ||
| - | |||
| **The tapping method**: \\ | **The tapping method**: \\ | ||
| Line 68: | Line 71: | ||
| A small particle of foreign matter lodged on the valve (ball) seat will prevent the check valve ball from seating. \\ | A small particle of foreign matter lodged on the valve (ball) seat will prevent the check valve ball from seating. \\ | ||
| If the seat is only slightly damaged, place a new ball on the seat and use a drift against the ball and to lightly tap against the seat. \\ | If the seat is only slightly damaged, place a new ball on the seat and use a drift against the ball and to lightly tap against the seat. \\ | ||
| - | Then install a new spring along with the new ball. ((piniongear of the XLFORUM http://xlforum.net/forums/showthread.php?t=1013445)) \\ | + | Then install a new spring along with the new ball. ((piniongear 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)) \\ |
| Basically, just stick the ball in the hole, push it tight against the seat with a drift and then give it a few light whacks with a small hammer. \\ | Basically, just stick the ball in the hole, push it tight against the seat with a drift and then give it a few light whacks with a small hammer. \\ | ||
| - | The aluminum housing is not as fragile as it would seem. Just do not use an 8 pound hammer. ((bustert of the XLFORUM http://xlforum.net/forums/showthread.php?t=1013445)) \\ | + | The aluminum housing is not as fragile as it would seem. Just do not use an 8 pound hammer. ((bustert of the XLFORUM https://www.xlforum.net/forum/sportster-motorcycle-forum/sportster-motorcycle-era-specific-and-model-specific/ironhead-sportster-motorcycle-talk-1957-1985/109149-oil-pump-check-ball-seating?t=1013445)) \\ |
| This will remove small slight striation marks or pits. \\ | This will remove small slight striation marks or pits. \\ | ||
| It also says to replace the pump body if the valve seat badly damaged. \\ | It also says to replace the pump body if the valve seat badly damaged. \\ | ||
| Line 76: | Line 79: | ||
| **The lapping method**: \\ | **The lapping method**: \\ | ||
| The seat can be lapped with a clean bead blasted Evo pushrod end (it’s the same size as | The seat can be lapped with a clean bead blasted Evo pushrod end (it’s the same size as | ||
| - | the check ball). ((gungatim of the XLFORUM http://xlforum.net/forums/showthread.php?t=1013445)) \\ | + | the check ball). ((gungatim 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)) \\ |
| 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. \\ | ||
