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techtalk:ih:oil03 [2019/02/09 04:06] hippysmack [Sub Documents] |
techtalk:ih:oil03 [2019/11/14 05:31] hippysmack [Oil Pump Cycle] |
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* Oil is forced into a valve with a one way spring loaded cup set at 1-1/2 psi. \\ From that valve, oil exits the pump and enters the crankcase. Oil pressure is indicated by the oil pressure switch. ((1970-1978 HD XL/XLH/XLCH/XLT 1000 FSM)) | * Oil is forced into a valve with a one way spring loaded cup set at 1-1/2 psi. \\ From that valve, oil exits the pump and enters the crankcase. Oil pressure is indicated by the oil pressure switch. ((1970-1978 HD XL/XLH/XLCH/XLT 1000 FSM)) | ||
- | {{:techtalk:ih:oil:77-_85_oil_pump_drawing_by_hippysmack.jpg?direct&400|}} ((drawing by Hippysmack)) {{:techtalk:ih:oil:77-85_oil_pump_feed_transfer_by_hippysmack.jpg?direct&300|}} ((photo by Hippysmack)) | + | {{:techtalk:ih:oil:a77-_85_oil_pump_drawing_by_hippysmack.jpg?direct&400|}} ((drawing by Hippysmack)) {{:techtalk:ih:oil:77-85_oil_pump_feed_transfer_by_hippysmack.jpg?direct&300|}} ((photo by Hippysmack)) |
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* Each plate will fit any 77-85 oil pump as a set with it's specific seal. | * Each plate will fit any 77-85 oil pump as a set with it's specific seal. | ||
* See "77-85 Oil Pump Parts Lists and Upgrades" above for the complete list and years for all the changes. | * See "77-85 Oil Pump Parts Lists and Upgrades" above for the complete list and years for all the changes. | ||
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+ | {{:techtalk:ih:oil:oil_line_routing_3_by_hopper.jpg?direct&300|}} ((photo by Hopper of the XLFORUM http://xlforum.net/forums/showthread.php?t=209347&page=10)) \\ | ||
|{{:techtalk:ih:oil:77_style_oil_pump_by_2_ironheadjunkie.jpg?direct&300|}}|{{:techtalk:ih:oil:77_style_oil_pump_by_1_ironheadjunkie.jpg?direct&300|}}|{{:techtalk:ih:oil:77_oil_pump_parts_by_northern_bobber.jpg?direct&300|}}| | |{{:techtalk:ih:oil:77_style_oil_pump_by_2_ironheadjunkie.jpg?direct&300|}}|{{:techtalk:ih:oil:77_style_oil_pump_by_1_ironheadjunkie.jpg?direct&300|}}|{{:techtalk:ih:oil:77_oil_pump_parts_by_northern_bobber.jpg?direct&300|}}| | ||
- | | 77-81 Style Oil Pump ((photos by ironheadjunkie of the XLFORUM http://xlforum.net/forums/showthread.php?t=1400314&page=2)) || 77 Oil Pump Parts ((photo by northern bobber of the XLFORUM http://xlforum.net/forums/showthread.php?t=2027306&highlight=oil+pump+gear)) | | + | | 77-E83 Style Oil Pump ((photos by ironheadjunkie of the XLFORUM http://xlforum.net/forums/showthread.php?t=1400314&page=2)) || 77 Oil Pump Parts ((photo by northern bobber of the XLFORUM http://xlforum.net/forums/showthread.php?t=2027306&highlight=oil+pump+gear)) | |
|{{:techtalk:ih:oil:79_style_oil_pump_1_by_peteroo.jpg?direct&300|}}|{{:techtalk:ih:oil:79_style_oil_pump_2_by_peteroo.jpg?direct&300|}}|{{:techtalk:ih:oil:79_style_oil_pump_3_by_peteroo.jpg?direct&300|}}| | |{{:techtalk:ih:oil:79_style_oil_pump_1_by_peteroo.jpg?direct&300|}}|{{:techtalk:ih:oil:79_style_oil_pump_2_by_peteroo.jpg?direct&300|}}|{{:techtalk:ih:oil:79_style_oil_pump_3_by_peteroo.jpg?direct&300|}}| | ||
| 79 Oil Pump ((photo by Peteroo of the XLFORUM http://xlforum.net/forums/showthread.php?t=2070085)) ||| | | 79 Oil Pump ((photo by Peteroo of the XLFORUM http://xlforum.net/forums/showthread.php?t=2070085)) ||| | ||
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+ | ====== Priming the Oil Pump ====== | ||
+ | A dry pump won't pump oil. \\ | ||
+ | It will 'cavitate' when their is not a hydraulic seal between the gerotors and the inlet hose from the tank. \\ | ||
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+ | Any time you have removed the oil pump or the removed / drained the feed hose from the oil tank, the pump needs to be primed. \\ | ||
+ | * The oil pump needs to be primed with oil / lube before it can transfer oil from the inlet to the outlet cavity inside. | ||
+ | * Prime the oil pump per the FSM; | ||
+ | * Upon removal / inspection, oil the pump internals. | ||
+ | * Remove the oil pressure switch and rotate the engine until oil comes out the end of the pump and reinstall the switch. | ||
+ | * If you let it sit long enough, oil will gravity drain inside the pump and prime it. | ||
+ | * Another way to prime the pump is to use assembly lube on the gerotors and inside of the pump before installing it. ((aswracing of the XLFORUM http://xlforum.net/forums/showthread.php?p=4805186#post4805186)) \\ Then you have an instant hydraulic seal to help the oil pump suck oil from the hose. | ||
+ | * You can also using a large syringe with a tapered tip inserted into the oil supply hose on the bottom of the oil tank. ((ericfreeman of the XLFORUM http://xlforum.net/forums/showthread.php?p=5751479#post5751479)) \\ Then you can force feed oil the pump and on to the engine using this technique and it avoids having to mess with the sending unit. | ||