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techtalk:ref:oil22 [2022/07/07 05:33]
hippysmack [1998-2006 Oil Pump Flow Test]
techtalk:ref:oil22 [2024/04/11 04:21] (current)
hippysmack [Measuring Output Volume (flow rate) of a Gerotor Oil Pump]
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 ====== REF: Oiling & Lubrication ====== ====== REF: Oiling & Lubrication ======
 ====== Measuring Output Volume (flow rate) of a Gerotor Oil Pump ====== ====== Measuring Output Volume (flow rate) of a Gerotor Oil Pump ======
 +See also [[techtalk:​ref:​oil24|Measuring Feed Oil Volume (flow rate) of the -72 Gear Type Oil Pump]] in the Sportsterpedia. \\
 \\ \\
 Disregarding variations in internal leakage, a positive displacement pump will discharge a specific volume of fluid per revolution. \\ Disregarding variations in internal leakage, a positive displacement pump will discharge a specific volume of fluid per revolution. \\
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 |  1991-1997 Pump Initial Test Run \\ with Air Leak at Gasket ((video by Hippysmack)) ​ |  1991-1997 Pump Update \\ with Air Leak Stopped ((video by Hippysmack)) ​ |  1998-2006 Pump Initial Test Run ((video by Hippysmack)) ​ | |  1991-1997 Pump Initial Test Run \\ with Air Leak at Gasket ((video by Hippysmack)) ​ |  1991-1997 Pump Update \\ with Air Leak Stopped ((video by Hippysmack)) ​ |  1998-2006 Pump Initial Test Run ((video by Hippysmack)) ​ |
-|{{:video:oil_pump_flow_testing_video-_equipment_rig_mp4_by_hippysmack.mp4|Oil Pump Flow Testing Rig Test 1}}|{{:video:oil_pump_flow_testing_video-_equipment_rig_update_mp4_by_hippysmack.mp4|Oil Pump Flow Testing Rig Test 2}} ((video by Hippysmack))|{{:​techtalk:​ref:​oil:​oil_pump_flow_testing_video-_1998-2006_pump_initial_run_by_hippysmack.mp4|}}|+|{{video:100-oil_pump_flow_testing_-_equipment_rig_mp4_by_hippysmack.mp4|Oil Pump Flow Testing Rig Test 1}}|{{video:​100-oil_pump_flow_testing_-_equipment_rig_update_mp4_by_hippysmack.mp4|Oil Pump Flow Testing Rig Test 2}} ((video by Hippysmack))|{{:​techtalk:​ref:​oil:​oil_pump_flow_testing_video-_1998-2006_pump_initial_run_by_hippysmack.mp4|}}|
  
 ===== Bench Runs of Normal Operation ===== ===== Bench Runs of Normal Operation =====
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 |  1991-1997 Sportster Oil Pump Bench Run ((video by Hippysmack)) ​ | |  1991-1997 Sportster Oil Pump Bench Run ((video by Hippysmack)) ​ |
-|{{:video:oil_pump_flow_testing_video-_1991-1997_bench_run_by_hippysmack.mp4|1991-1997 Oil Pump Bench Test Run}}|+|{{video:100-oil_pump_flow_testing_-_1991-1997_bench_run_by_hippysmack.mp4|1991-1997 Oil Pump Bench Test Run}}|
  
 ===== Flow Rate Result Summaries ===== ===== Flow Rate Result Summaries =====
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 |  Screenshot at the 1 minute mark (660.3 RPM) ((photo by Hippysmack)) ​ |  Video: Feed Volume at 660.3 RPM  ((video by Hippysmack)) ​ | |  Screenshot at the 1 minute mark (660.3 RPM) ((photo by Hippysmack)) ​ |  Video: Feed Volume at 660.3 RPM  ((video by Hippysmack)) ​ |
-|{{:​techtalk:​ref:​oil:​oil_pump_flow_testing_video-_1991-1997_feed-test_screenshot_at_660.3_rpm_by_hippysmack.jpg?​direct&​400|}}|{{:video:oil_pump_flow_testing_video-_1991-1997_feed-test_at_660.3_rpm_by_hippysmack.mp4|}}|+|{{:​techtalk:​ref:​oil:​oil_pump_flow_testing_video-_1991-1997_feed-test_screenshot_at_660.3_rpm_by_hippysmack.jpg?​direct&​400|}}|{{video:​100-oil_pump_flow_testing_-_1991-1997_feed-test_at_660.3_rpm_by_hippysmack.mp4|}}|
  
 === Return Testing === === Return Testing ===
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 |  Screenshot at the 1 minute mark ((photo by Hippysmack)) ​ |  Video: Return Volume at 660.3 RPM  ((video by Hippysmack)) ​ | |  Screenshot at the 1 minute mark ((photo by Hippysmack)) ​ |  Video: Return Volume at 660.3 RPM  ((video by Hippysmack)) ​ |
-|{{:​techtalk:​ref:​oil:​oil_pump_flow_testing_video-_1991-1997_return-test_screenshot_at_660.3_rpm_by_hippysmack.jpg?​direct&​400|}}|{{:video:oil_pump_flow_testing_video-_1991-1997_return-test_at_660.3_rpm_by_hippysmack.mp4|}}| ​+|{{:​techtalk:​ref:​oil:​oil_pump_flow_testing_video-_1991-1997_return-test_screenshot_at_660.3_rpm_by_hippysmack.jpg?​direct&​400|}}|{{video:​100-oil_pump_flow_testing_-_1991-1997_return-test_at_660.3_rpm_by_hippysmack.mp4|}}| ​
  
 ==== 1998-2006 Oil Pump Flow Test ==== ==== 1998-2006 Oil Pump Flow Test ====
 === Feed Testing === === Feed Testing ===
 +**Actual Pump Feed Flow Test**: \\
 +The video below shows about 29 ounces per minute into the container at 653.7 RPM. \\
 +
 +|  Video: 1998-2006 Feed Volume at 660.3 RPM ((video by Hippysmack)) ​ |
 +|{{video:​100-oil_pump_flow_testing_-_1998-2006_feed_volume_test_by_hippysmack.mp4|}}|
  
 === Return Testing === === Return Testing ===
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   * The sump port alone delivered about 43 ounces per minute into the container at 654.3 RPM.   * The sump port alone delivered about 43 ounces per minute into the container at 654.3 RPM.
   * Both the sump and cam ports together delivered about 71 ounces per minute.   * Both the sump and cam ports together delivered about 71 ounces per minute.
-    * Total projected volume from the return gerotors (CCing gerotors) was 62.08 oz/minute at pump speed 500 rpm. \\ So the flow test results are comparable although higher than projected ​volumes+    * Total projected volume from the return gerotors (CCing gerotors) was 62.08 oz/minute at pump speed 500 rpm. \\ So the flow test results are comparable although higher than projected ​due to higher pump speed
-  * As long as both return inlets are getting oil, volume picked up and returned to the tank is a little higher. \\ It seems these two inlets complement each other. \\ And in reverse, if oil is not flowing as fast to one or the other port, total volume back to the tank is lower.+    * As long as both return inlets are getting oil, volume picked up and returned to the tank is a little higher. \\ It seems these two inlets complement each other. \\ And in reverse, if oil is not flowing as fast to one or the other port, total volume back to the tank is lower.
   * The individual flow volumes add up to the cam chest inlet port delivering 27.1% of the flow (16 + 43 = 59), (16 / 59 = .2711864406779661 or 27.1%) \\ It's not known from which or both inlets that the extra 12 ounces of oil came from when they were tested together.   * The individual flow volumes add up to the cam chest inlet port delivering 27.1% of the flow (16 + 43 = 59), (16 / 59 = .2711864406779661 or 27.1%) \\ It's not known from which or both inlets that the extra 12 ounces of oil came from when they were tested together.
- 
- 
  
 |  1998-2006 Return Test Video \\ Both Ports Delivering Oil ((video by Hippysmack)) ​ | |  1998-2006 Return Test Video \\ Both Ports Delivering Oil ((video by Hippysmack)) ​ |
-|{{:video:oil_pump_flow_testing_video-_1998-2006_return_inlet_test-_both_ports_by_hippysmack.mp4|}}|+|{{video:100-oil_pump_flow_testing_-_1998-2006_return_inlet_test-_both_ports_by_hippysmack.mp4|}}|
  
 |  1998-2006 Return Test Video \\ Sump Port (only) Delivering Oil ((video by Hippysmack)) ​ |1998-2006 Return Test Video \\ Cam Port (only) Delivering Oil ((video by Hippysmack))| |  1998-2006 Return Test Video \\ Sump Port (only) Delivering Oil ((video by Hippysmack)) ​ |1998-2006 Return Test Video \\ Cam Port (only) Delivering Oil ((video by Hippysmack))|
-|{{:video:oil_pump_flow_testing_video-_1998-2006_return_inlet_test-_sump_port_w_cam_port_open_by_hippysmack.mp4|}}|{{:video:oil_pump_flow_testing_video-_1998-2006_return_inlet_test-_cam_port-_w_sump_port_open_by_hippysmack.mp4|}}|+|{{video:100-oil_pump_flow_testing_-_1998-2006_return_inlet_test-_sump_port_w_cam_port_open_by_hippysmack.mp4|}}|{{video:​100-oil_pump_flow_testing_-_1998-2006_return_inlet_test-_cam_port-_w_sump_port_open_by_hippysmack.mp4|}}|
  
 +==== 2007-Present Oil Pump Flow Test ====
 +=== Feed Testing ===
 +**Actual Pump Feed Flow Test**: \\
 +The video below shows about 30 ounces per minute into the container at 654.7 RPM. \\
 +
 +|  Video: 2007-Present Feed Volume at 654.7 RPM ((video by Hippysmack)) ​ |
 +|{{video:​100-oil_pump_flow_testing_-_2007-present_feed-test_at_654.7_rpm_by_hippysmack.mp4|}}|
 +
 +=== Return Testing ===
 +**Actual Pump Return Flow Test**: \\ 
 +Flow testing was attempted to measure volume of the sump inlet port (cam port open to atmosphere) and cam inlet port (sump port open to atmosphere). \\
 +  * The cam port volume could not be tested due to not enough oil being delivered to it. \\ First, the container of oil for the cam chest inlet was hung above the drill press where the inlet hose was 25-1/​2"​ above the pump (oil level 28" above pump). \\ The oil pump had more suction than the weight of gravity oil (more suction than gravity could deliver oil for). \\ Next, the container was raised to where the inlet fitting was 34-1/​2"​ above the pump with the oil level at 39" above. \\ The oil pump was still sucking faster than the oil was being delivered to the top of the pump.
 +  * The sump port alone delivered about 63 ounces per minute into the container at 654.7 RPM.
 +
 +|  Video: 2007-Present Cam Chest Inlet Test- \\ (not enough oil delivery for testing) ((video by Hippysmack)) ​ |  Video: 2007-Present Sump Inlet Test ((video by Hippysmack)) ​ |
 +|{{video:​100-oil_pump_flow_testing_-_2007-present_return-_cam_chest_inlet_at_654.7_rpm_by_hippysmack.mp4|}}|{{video:​100-oil_pump_flow_testing_-_2007-present_return-_sump_inlet_at_654.7_rpm_by_hippysmack.mp4|}}|
 ===== Further Testing Attempted ===== ===== Further Testing Attempted =====
 ==== Feed Pressure Testing ==== ==== Feed Pressure Testing ====
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 |  1991-1997 Oil Pump- Restrictions Video ((video by Hippysmack)) ​ | |  1991-1997 Oil Pump- Restrictions Video ((video by Hippysmack)) ​ |
-|{{:video:oil_pump_flow_testing_video-_1991-1997_restricted_feed_test_by_hippysmack.mp4|}}|+|{{video:100-oil_pump_flow_testing_-_1991-1997_restricted_feed_test_by_hippysmack.mp4|}}|
  
 ==== Static Pressure Testing ==== ==== Static Pressure Testing ====
  
-      ​* 1991-1997 oil pump static pressures: ​Outlet ​fitting ID was changed ​ for three tests which lowered RPM on the drill press. +  ​* 1991-1997 oil pump static pressures: ​Feed outlet ​fitting ID was changed for three tests which lowered RPM on the drill press. 
-        * Test #1 at pump speed of 659.6 RPM and feed outlet fitting ID of 0.316";​ \\ Feed Outlet Hose Pressure (5 PSI), Feed Inlet Hose Vacuum (-11 cmHg or -2.13 PSI), Return Inlet Hose Vacuum (-13 cmHG or -2.51 PSI)+    * Test #1 at pump speed of 659.6 RPM and feed outlet fitting ID of 0.316";​ \\ Feed Outlet Hose Pressure (5 PSI), Feed Inlet Hose Vacuum (-11 cmHg or -2.13 PSI), Return Inlet Hose Vacuum (-13 cmHG or -2.51 PSI) 
 +    * Test #2 at pump speed of 658.9 RPM and feed outlet fitting ID of 0.160";​ \\ Feed Outlet Hose Pressure (5.5 PSI), Feed Inlet Hose Vacuum (-11.5 cmHG or -2.22 PSI), Return Inlet Hose Vacuum (-13 cmHg or -2.51 PSI) 
 +    * Test #3 at pump speed of 654.7 RPM and feed outlet fitting ID of 0.110";​ \\ Feed Outlet Hose Pressure (27 PSI), Feed Inlet Hose Vacuum (-10.5 cmHg or -2.03 PSI), Return Inlet Hose Vacuum (-13 cmHg or -2.51 PSI) 
 +    * Test #4 at pump speed of 1142 RPM and feed outlet fitting ID of 0.316";​ \\ Feed Outlet Hose Pressure (5.5 PSI), Feed Inlet Hose Vacuum (-26.5 cmHg or -5.12 PSI), Return Inlet Hose Vacuum (-23 cmHG or -4.45 PSI) 
 +    * Test #5 at pump speed of 1697 RPM and feed outlet fitting ID of 0.316";​ \\ Feed Outlet Hose Pressure (7 PSI), Feed Inlet Hose Vacuum (-32 cmHg or -6.19 PSI), Return Inlet Hose Vacuum (-31 cmHG or -5.99 PSI) 
 +    * Test #6 at pump speed of 2213 RPM and feed outlet fitting ID of 0.316";​ \\ Feed Outlet Hose Pressure (7.5 PSI), Feed Inlet Hose Vacuum (-39.5 cmHg or -7.64 PSI), Return Inlet Hose Vacuum (-35.5 cmHG or -6.86 PSI) 
 +    * Test #7 at pump speed of 2688 RPM and feed outlet fitting ID of 0.316";​ \\ Feed Outlet Hose Pressure (7 PSI), Feed Inlet Hose Vacuum (-36.5 cmHg or -7.06 PSI), Return Inlet Hose Vacuum (-36 cmHG or -6.96 PSI) 
 +  * 1998-1999 oil pump static pressures:​ 
 +    * Test at pump speed of 653.7 RPM and feed outlet fitting ID of 0.316";​ \\ Feed Outlet Hose Pressure (4 PSI), Feed Inlet Hose Vacuum (-14.5 cmHg or -2.80 PSI), \\ Return Inlet Hose Vacuum __Without__ Oil in the Cam Chest Inlet Port (-11 cmHG or -2.13 PSI) \\ Return Inlet Hose Vacuum __With__ Oil in the Cam Chest Inlet Port (-12.5 cmHG or -2.42 PSI) 
 +  * 2007-Present oil pump static pressures:​ 
 +    * Test at pump speed of 654.7 RPM and feed outlet fitting ID of 0.316";​ \\ Feed Outlet Hose Pressure (4 PSI), Feed Inlet Hose Vacuum (-14 cmHg or -2.71 PSI), \\ Return Inlet Hose Vacuum __Without__ Oil in the Cam Chest Inlet Port (-11 cmHG or -2.13 PSI) \\ Return Inlet Hose Vacuum __With__ Oil in the Cam Chest Inlet Port not tested.
  
-        * Test #2 at pump speed of 658.9 RPM and feed outlet fitting ID of 0.160";​ \\ Feed Outlet Hose Pressure (5.5 PSI), Feed Inlet Hose Vacuum (-11.5 cmHG or -2.22 PSI), Return Inlet Hose Vacuum (-13 cmHg or -2.51 PSI) +|  1991-1997 ​Pump Pressure Test #1  ||
-        * Test #3 at pump speed of 654.7 RPM and feed outlet fitting ID of 0.110";​ \\ Feed Outlet Hose Pressure (27 PSI), Feed Inlet Hose Vacuum (-10.5 cmHg or -2.03 PSI), Return Inlet Hose Vacuum (-13 cmHg or -2.51 PSI) +
-        * Test #4 at pump speed of 1142 RPM and feed outlet fitting ID of 0.316";​ \\ Feed Outlet Hose Pressure (5.5 PSI), Feed Inlet Hose Vacuum (-26.5 cmHg or -5.12 PSI), Return Inlet Hose Vacuum (-23 cmHG or -4.45 PSI) +
-        * Test #5 at pump speed of 1697 RPM and feed outlet fitting ID of 0.316";​ \\ Feed Outlet Hose Pressure (7 PSI), Feed Inlet Hose Vacuum (-32 cmHg or -6.19 PSI), Return Inlet Hose Vacuum (-31 cmHG or -5.99 PSI) +
-        * Test #6 at pump speed of 2213 RPM and feed outlet fitting ID of 0.316";​ \\ Feed Outlet Hose Pressure (7.5 PSI), Feed Inlet Hose Vacuum (-39.5 cmHg or -7.64 PSI), Return Inlet Hose Vacuum (-35.5 cmHG or -6.86 PSI) +
-        * Test #7 at pump speed of 2688 RPM and feed outlet fitting ID of 0.316";​ \\ Feed Outlet Hose Pressure (7 PSI), Feed Inlet Hose Vacuum (-36.5 cmHg or -7.06 PSI), Return Inlet Hose Vacuum (-36 cmHG or -6.96 PSI) +
- +
-|  1991-1997 Pressure Test #1  ||+
 |{{:​techtalk:​ref:​oil:​oil_pump_flow_testing-_1991-1997_feed-test_pressure_pic1_by_hippysmack.jpg?​direct&​400|}}|{{:​techtalk:​ref:​oil:​oil_pump_flow_testing-_1991-1997_feed-test_pressure_pic1.1_by_hippysmack.jpg?​direct&​400|}}| |{{:​techtalk:​ref:​oil:​oil_pump_flow_testing-_1991-1997_feed-test_pressure_pic1_by_hippysmack.jpg?​direct&​400|}}|{{:​techtalk:​ref:​oil:​oil_pump_flow_testing-_1991-1997_feed-test_pressure_pic1.1_by_hippysmack.jpg?​direct&​400|}}|
  
-|  1991-1997 Pressure Test #2  ||+|  1991-1997 ​Pump Pressure Test #2  ||
 |{{:​techtalk:​ref:​oil:​oil_pump_flow_testing-_1991-1997_feed-test_pressure_pic2_by_hippysmack.jpg?​direct&​400|}}|{{:​techtalk:​ref:​oil:​oil_pump_flow_testing-_1991-1997_feed-test_pressure_pic2.1_by_hippysmack.jpg?​direct&​400|}}| |{{:​techtalk:​ref:​oil:​oil_pump_flow_testing-_1991-1997_feed-test_pressure_pic2_by_hippysmack.jpg?​direct&​400|}}|{{:​techtalk:​ref:​oil:​oil_pump_flow_testing-_1991-1997_feed-test_pressure_pic2.1_by_hippysmack.jpg?​direct&​400|}}|
  
-|  1991-1997 Pressure Test #3  ||+|  1991-1997 ​Pump Pressure Test #3  ||
 |{{:​techtalk:​ref:​oil:​oil_pump_flow_testing-_1991-1997_feed-test_pressure_pic3_by_hippysmack.jpg?​direct&​400|}}|{{:​techtalk:​ref:​oil:​oil_pump_flow_testing-_1991-1997_feed-test_pressure_pic3.1_by_hippysmack.jpg?​direct&​400|}}| |{{:​techtalk:​ref:​oil:​oil_pump_flow_testing-_1991-1997_feed-test_pressure_pic3_by_hippysmack.jpg?​direct&​400|}}|{{:​techtalk:​ref:​oil:​oil_pump_flow_testing-_1991-1997_feed-test_pressure_pic3.1_by_hippysmack.jpg?​direct&​400|}}|
  
-|  1991-1997 Pressure Test #4  |  1991-1997 Pressure Test #5  |+|  1991-1997 ​Pump Pressure Test #4  |  1991-1997 ​Pump Pressure Test #5  |
 |{{:​techtalk:​ref:​oil:​oil_pump_flow_testing-_1991-1997_feed-test_pressure_pic4_by_hippysmack.jpg?​direct&​400|}}|{{:​techtalk:​ref:​oil:​oil_pump_flow_testing-_1991-1997_feed-test_pressure_pic5_by_hippysmack.jpg?​direct&​400|}}| |{{:​techtalk:​ref:​oil:​oil_pump_flow_testing-_1991-1997_feed-test_pressure_pic4_by_hippysmack.jpg?​direct&​400|}}|{{:​techtalk:​ref:​oil:​oil_pump_flow_testing-_1991-1997_feed-test_pressure_pic5_by_hippysmack.jpg?​direct&​400|}}|
  
-|  1991-1997 Pressure Test #6  |  1991-1997 Pressure Test #7  |+|  1991-1997 ​Pump Pressure Test #6  |  1991-1997 ​Pump Pressure Test #7  |
 |{{:​techtalk:​ref:​oil:​oil_pump_flow_testing-_1991-1997_feed-test_pressure_pic6_by_hippysmack.jpg?​direct&​400|}}|{{:​techtalk:​ref:​oil:​oil_pump_flow_testing-_1991-1997_feed-test_pressure_pic7_by_hippysmack.jpg?​direct&​400|}}| |{{:​techtalk:​ref:​oil:​oil_pump_flow_testing-_1991-1997_feed-test_pressure_pic6_by_hippysmack.jpg?​direct&​400|}}|{{:​techtalk:​ref:​oil:​oil_pump_flow_testing-_1991-1997_feed-test_pressure_pic7_by_hippysmack.jpg?​direct&​400|}}|
 +
 +|  1998-2006 Pump Feed Pressure Test  |  1998-2006 Pump Return (sump hose) Pressure Test  |
 +|{{:​techtalk:​ref:​oil:​oil_pump_flow_testing-_1998_pump_-_feed_hose_vacuum_and_pressure_by_hippysmack.jpg?​direct&​400|}} |{{:​techtalk:​ref:​oil:​oil_pump_flow_testing-_1998_pump_-_sump_hose_vacuum_with-without_cam_chest_oil_by_hippysmack.jpg?​direct&​400|}}|
 +
 +|  2007 Pump Feed Pressure Test  |  2007 Pump Return (sump hose) Pressure Test  |
 +|{{:​techtalk:​ref:​oil:​oil_pump_flow_testing-_2007_pump_-_feed_hose_vacuum_and_pressure_by_hippysmack.jpg?​direct&​400|}}|{{:​techtalk:​ref:​oil:​oil_pump_flow_testing-_2007_pump_-_return-_sump_only_vacuum_by_hippysmack.jpg?​direct&​400|}}|
  
 ==== Return Inlet Restrictions ==== ==== Return Inlet Restrictions ====
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 |  77-97 pump return inlet volume per restriction video ((video by Hippysmack)) ​ |  77-97 pump return inlet restriction/​RPM/​Cavitation video ((video by Hippysmack)) ​ | |  77-97 pump return inlet volume per restriction video ((video by Hippysmack)) ​ |  77-97 pump return inlet restriction/​RPM/​Cavitation video ((video by Hippysmack)) ​ |
-|{{:video:oil_pump_flow_testing_video-_1991-1997_return_inlet_test-_restrictions_and_volume_by_hippysmack_w_aac_audio.mp4|}}|{{:video:oil_pump_flow_testing_video-_1991-1997_return_inlet_test-_restriction-rpm-cavitation_by_hippysmack_use_this.mp4|}}|+|{{video:100-oil_pump_flow_testing_-_1991-1997_return_inlet_test-_restrictions_and_volume_by_hippysmack_w_aac_audio.mp4|}}|{{video:​100-oil_pump_flow_testing_-_1991-1997_return_inlet_test-_restriction-rpm-cavitation_by_hippysmack_use_this.mp4|}}|
  
 ==== 1998 Oil Pump Sump Passage Dead Stick Vacuum Test ==== ==== 1998 Oil Pump Sump Passage Dead Stick Vacuum Test ====
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     * The sump port hose was plugged off with a vacuum gauge off the hose and the cam port was open to atmosphere. \\ The vacuum on the sump hose was a steady 50 cmHg. \\ Then oil was introduced into the cam port hole and the vacuum on the sump hose jumped higher and pegged the gauge. \\ Vacuum was in excess of 74 cmHg with the actual number not known. \\ The addition of oil traveling to the sump inlet cavity in the pump increased vacuum on the hose.      * The sump port hose was plugged off with a vacuum gauge off the hose and the cam port was open to atmosphere. \\ The vacuum on the sump hose was a steady 50 cmHg. \\ Then oil was introduced into the cam port hole and the vacuum on the sump hose jumped higher and pegged the gauge. \\ Vacuum was in excess of 74 cmHg with the actual number not known. \\ The addition of oil traveling to the sump inlet cavity in the pump increased vacuum on the hose. 
  
-{{:​techtalk:​ref:​oil:​oil_pump_flow_testing-_1998_sump_return_plugged-test_pressure_by_hippysmack.jpg?​direct&​400|}} ((photo by Hippysmack)) ​\\+|  Dead Stick Vacuum at 50cmHg ((photo by Hippysmack)) ​ | 
 +|{{:​techtalk:​ref:​oil:​oil_pump_flow_testing-_1998_sump_return_plugged-test_pressure_by_hippysmack.jpg?​direct&​400|}} ((photo by Hippysmack))|
  
   * Testing was done to see the oil quality change between having the sump port open to atmosphere and then the sump port plugged off. \\ Oil stream quality coming from the cam port inlet is different going out the return to tank line if the sump port is open to atmosphere or plugged.   * Testing was done to see the oil quality change between having the sump port open to atmosphere and then the sump port plugged off. \\ Oil stream quality coming from the cam port inlet is different going out the return to tank line if the sump port is open to atmosphere or plugged.
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 |  1998-2006 Style Pump Video \\ Cam Port Stream Quality ((video by Hippysmack)) ​ | |  1998-2006 Style Pump Video \\ Cam Port Stream Quality ((video by Hippysmack)) ​ |
-|{{:video:oil_pump_flow_testing_video-_1998-2006_return_inlet_test-_cam_port_flooded_w_sump_port_open_then_plugged_by_hippysmack.mp4|}}|+|{{video:100-oil_pump_flow_testing_-_1998-2006_return_inlet_test-_cam_port_flooded_w_sump_port_open_then_plugged_by_hippysmack.mp4|}}|
 ---- ----