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techtalk:ref:oil15 [2019/06/13 02:26]
hippysmack [Testing at the rocker box]
techtalk:ref:oil15 [2019/08/16 20:26]
hippysmack [At the Oil Pump]
Line 96: Line 96:
     * On a cold startup, the pressure is higher due to the thicker oil present.     * On a cold startup, the pressure is higher due to the thicker oil present.
     * As the engine warms up, the oil thins out and the pressure is reduced in the rocker boxes.     * As the engine warms up, the oil thins out and the pressure is reduced in the rocker boxes.
-    * Excess ​crankcase pressure (air and oil mist) is vented differently between pre and post 91 engines.+    * Pulsating ​crankcase pressure (air and oil mist) is vented differently between pre and post 91 engines.
       * On pre 91 engines, excess crankcase pressure is vented through the cam cover.       * On pre 91 engines, excess crankcase pressure is vented through the cam cover.
       * On post 91 engines, excess crankcase pressure is routed up the pushrod tubes and vented thru the rocker boxes to exit a hole in each head.       * On post 91 engines, excess crankcase pressure is routed up the pushrod tubes and vented thru the rocker boxes to exit a hole in each head.
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 {{:​techtalk:​evo:​oil:​98_cam_chest_by_hippysmack.jpg?​direct&​300|}} ((photo by Hippysmack)) {{:​techtalk:​evo:​oil:​98_cam_chest_by_hippysmack.jpg?​direct&​300|}} ((photo by Hippysmack))
 +
 +===== At the Oil Pump =====
 +|Parts. ((photo by rocketmangb of the XLFORUM http://​xlforum.net/​forums/​showthread.php?​t=2049680))|
 +|{{:​techtalk:​ref:​oil:​oil_pressure_gauge_rig_2_by_rocketmangb.jpg?​direct&​300|}}|
 + 
 +|Hoses lengths. ((photo by rocketmangb of the XLFORUM http://​xlforum.net/​forums/​showthread.php?​t=2049680&​page=2))|Hook one end to the filter pad. ((photo by rocketmangb of the XLFORUM http://​xlforum.net/​forums/​showthread.php?​t=2049680&​page=2))|Hook the other end to the oil pump. ((photo by rocketmangb of the XLFORUM http://​xlforum.net/​forums/​showthread.php?​t=2049680&​page=2))|
 +|{{:​techtalk:​ref:​oil:​oil_pressure_gauge_rig_3_by_rocketmangb.jpg?​direct&​300|}}|{{:​techtalk:​ref:​oil:​oil_pressure_gauge_rig_10_by_rocketmangb.jpg?​direct&​300|}}|{{:​techtalk:​ref:​oil:​oil_pressure_gauge_rig_4_by_rocketmangb.jpg?​direct&​300|}}|
 +
 +|Hold or mount the gauge where you want it. ((photos by rocketmangb of the XLFORUM http://​xlforum.net/​forums/​showthread.php?​t=2049680&​page=2))|||
 +|{{:​techtalk:​ref:​oil:​oil_pressure_gauge_rig_5_by_rocketmangb.jpg?​direct&​300|}}|{{:​techtalk:​ref:​oil:​oil_pressure_gauge_rig_6_by_rocketmangb.jpg?​direct&​300|}}|{{:​techtalk:​ref:​oil:​oil_pressure_gauge_rig_9_by_rocketmangb.jpg?​direct&​300|}}|
 ====== IH ====== ====== IH ======