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--- techtalk:ih:oil03 [2019/02/09 04:06]
hippysmack [Sub Documents]
+++ techtalk:ih:oil03 [2019/05/30 01:11]
hippysmack [Production Oil Pumps]
@@ Line 142: / Line 142: @@
 |{{: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|}}|
 |  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.

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