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techtalk:ih:oil03 [2019/02/28 13:36]
hippysmack [Production Oil Pumps]
techtalk:ih:oil03 [2019/05/30 01:11] (current)
hippysmack [Production Oil Pumps]
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 |{{:​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)) ​ |||
 +
 +====== 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. \\
 +
 +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.