Differences
This shows you the differences between two versions of the page.
| Both sides previous revision Previous revision Next revision | Previous revision Next revision Both sides next revision | ||
|
techtalk:evo:oil03 [2020/06/06 02:27] hippysmack [Oil Pump Drive Gear] |
techtalk:evo:oil03 [2020/11/07 04:47] hippysmack [Priming the Oil Pump] |
||
|---|---|---|---|
| Line 72: | Line 72: | ||
| | Typical 98-up gerotor positioning over the pickup cavities (07 pump shown). ((photos by Hippysmack)) || | | Typical 98-up gerotor positioning over the pickup cavities (07 pump shown). ((photos by Hippysmack)) || | ||
| |{{:techtalk:evo:oil:2007_and_up_oil_pump_2_by_hippysmack.jpg?direct&300|}}|{{:techtalk:evo:oil:2007_and_up_oil_pump_5a_by_hippysmack.jpg?direct&300|}}| | |{{:techtalk:evo:oil:2007_and_up_oil_pump_2_by_hippysmack.jpg?direct&300|}}|{{:techtalk:evo:oil:2007_and_up_oil_pump_5a_by_hippysmack.jpg?direct&300|}}| | ||
| - | ====== Oil Pump Pressure ====== | + | ====== Oil Pump Pressure (86-Up) ====== |
| + | See also [[techtalk:ref:oil15|Installing an Oil Pressure Gauge]] in the REF section of the Sportsterpedia. \\ | ||
| + | |||
| + | Engine oil pressure was measured (by the MoCo) with a pressure gauge at the oil pump. \\ | ||
| Expected oil pump pressure per FSM's: \\ | Expected oil pump pressure per FSM's: \\ | ||
| + | |||
| ===== Gauge mounted at tappet hole plug ===== | ===== Gauge mounted at tappet hole plug ===== | ||
| As checked with hot oil and a gauge at the plug hole on the engine case between the tappets. \\ | As checked with hot oil and a gauge at the plug hole on the engine case between the tappets. \\ | ||
| Line 300: | Line 304: | ||
| \\ | \\ | ||
| - | |||
| - | ====== 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. | ||
| - | |||
| - | |||
