Differences
This shows you the differences between two versions of the page.
| Both sides previous revision Previous revision Next revision | Previous revision Last revision Both sides next revision | ||
|
techtalk:ref:engmech05e [2019/07/17 04:52] hippysmack ↷ Links adapted because of a move operation |
techtalk:ref:engmech05e [2023/12/21 21:21] hippysmack |
||
|---|---|---|---|
| Line 1: | Line 1: | ||
| [[:techtalk:menu|{{ :techtalk:gototechnicalmenu.jpg|}}]] | [[:techtalk:menu|{{ :techtalk:gototechnicalmenu.jpg|}}]] | ||
| - | ====== REF: Oiling & Lubrication - Sub-05H ====== | + | ====== REF: Engine Mechanicals - Sub-05E ====== |
| ====== Adding a Vent Between the Oil Tank and the Cam Chest ====== | ====== Adding a Vent Between the Oil Tank and the Cam Chest ====== | ||
| + | Article by Deimus of the XLFORUM ((http://xlforum.net/forums/showthread.php?t=67658|Install new crankcase vent - 04+)) \\ | ||
| Also see [[techtalk:evo:engmech07|Crankcase Ventilation]] in the Evo section of the Sportsterpedia for pics and info on the OEM breathing system. \\ | Also see [[techtalk:evo:engmech07|Crankcase Ventilation]] in the Evo section of the Sportsterpedia for pics and info on the OEM breathing system. \\ | ||
| **Background**: \\ | **Background**: \\ | ||
| - | This mod was attempted to improve crankcase pressure venting for more efficient oil flow, lower oil temps and neutral pressure inside the oil tank on 04 and up Sportsters. ((Deimus of the XLFORUM http://xlforum.net/forums/showthread.php?t=67658)) \\ | + | This mod was attempted to improve crankcase pressure venting for more efficient oil flow, lower oil temps and neutral pressure inside the oil tank on 04 and up Sportsters. \\ |
| (even though the vents are different on earlier Sportsters, engine breathing is the same concept) \\ | (even though the vents are different on earlier Sportsters, engine breathing is the same concept) \\ | ||
| - | Before this mod, the tank oil gauge would readily hit 250°F, the oil would look foamy after running hard and the top end was much noisy. ((Deimus of the XLFORUM http://xlforum.net/forums/showthread.php?t=67658&page=11)) \\ | + | Before this mod, the tank oil gauge would readily hit 250°F, the oil would look foamy after running hard and the top end was much noisy. \\ |
| The idea was to install a PCV valve inline on the vent line from the oil tank to the cam chest in addition to the head vents. \\ | The idea was to install a PCV valve inline on the vent line from the oil tank to the cam chest in addition to the head vents. \\ | ||
| Line 34: | Line 35: | ||
| The first thing you will do is to separate the vent hose from the plastic tube section. \\ | The first thing you will do is to separate the vent hose from the plastic tube section. \\ | ||
| - | |Install the tee in the hose with the tee pointing up. ((photo by Deimus of the XLFORUM http://xlforum.net/forums/showthread.php?t=67658))|The plastic tube needs to be clipped. \\ The excess piece is sitting on the belt. ((photo by Deimus of the XLFORUM http://xlforum.net/forums/showthread.php?t=67658))|Connect the tee with a short piece of 5/16" hose. \\ Connect the tee to the plastic tube. ((photo by Deimus of the XLFORUM http://xlforum.net/forums/showthread.php?t=67658))| | + | |Install the tee in the hose with the tee pointing up.|The plastic tube needs to be clipped. \\ The excess piece is sitting on the belt.|Connect the tee with a short piece of 5/16" hose. \\ Connect the tee to the plastic tube.| |
| |{{techtalk:ref:engmech:04_up_crankcase_vent_1_by_deimus.jpg?direct&300|}}|{{techtalk:ref:engmech:04_up_crankcase_vent_2_by_deimus.jpg?direct&300|}}|{{techtalk:ref:engmech:04_up_crankcase_vent_3_by_deimus.jpg?direct&300|}}| | |{{techtalk:ref:engmech:04_up_crankcase_vent_1_by_deimus.jpg?direct&300|}}|{{techtalk:ref:engmech:04_up_crankcase_vent_2_by_deimus.jpg?direct&300|}}|{{techtalk:ref:engmech:04_up_crankcase_vent_3_by_deimus.jpg?direct&300|}}| | ||
| Line 44: | Line 45: | ||
| * A wire tie used to secure the loop so it will stay in place. \\ The wire tie is actually connected to a pair of wire ties connected together then attached around the frame tube. \\ Otherwise there's nothing here to tie the hose to. | * A wire tie used to secure the loop so it will stay in place. \\ The wire tie is actually connected to a pair of wire ties connected together then attached around the frame tube. \\ Otherwise there's nothing here to tie the hose to. | ||
| - | | New vent installed and secured. ((photos by Deimus of the XLFORUM http://xlforum.net/forums/showthread.php?t=67658)) ||| | + | | New vent installed and secured. ||| |
| |{{techtalk:ref:engmech:04_up_crankcase_vent_4_by_deimus.jpg?direct&300|}}|{{techtalk:ref:engmech:04_up_crankcase_vent_5_by_deimus.jpg?direct&200|}}|{{techtalk:ref:engmech:04_up_crankcase_vent_6_by_deimus.jpg?direct&250|}}| | |{{techtalk:ref:engmech:04_up_crankcase_vent_4_by_deimus.jpg?direct&300|}}|{{techtalk:ref:engmech:04_up_crankcase_vent_5_by_deimus.jpg?direct&200|}}|{{techtalk:ref:engmech:04_up_crankcase_vent_6_by_deimus.jpg?direct&250|}}| | ||
| Line 50: | Line 51: | ||
| By locating the tee close to the frame tube and trimming the excess from the plastic tube instead of from the original hose. \\ | By locating the tee close to the frame tube and trimming the excess from the plastic tube instead of from the original hose. \\ | ||
| - | | Original finished product. ((photos by Deimus of the XLFORUM http://xlforum.net/forums/showthread.php?t=67658)) || | + | | Original finished product. || |
| |{{techtalk:ref:engmech:04_up_crankcase_vent_7_by_deimus.jpg?direct&400|}}|{{techtalk:ref:engmech:04_up_crankcase_vent_8_by_deimus.jpg?direct&400|}}| | |{{techtalk:ref:engmech:04_up_crankcase_vent_7_by_deimus.jpg?direct&400|}}|{{techtalk:ref:engmech:04_up_crankcase_vent_8_by_deimus.jpg?direct&400|}}| | ||
| - | **First Ride report**: ((Deimus of the XLFORUM http://xlforum.net/forums/showthread.php?t=67658&page=10)) \\ | + | **First Ride report**: ((Deimus of the XLFORUM https://www.xlforum.net/forum/sportster-motorcycle-forum/sportster-motorcycle-motor-engine/sportster-motorcycle-bottom-end/35356-install-new-crankcase-vent-04/page10?t=67658&page=10)) \\ |
| The trip was over 2,200 miles consisting of cool areas, warm areas, and very hot areas as well. \\ | The trip was over 2,200 miles consisting of cool areas, warm areas, and very hot areas as well. \\ | ||
| So all conditions were encountered. The bike ran well the entire time. It never got hot nor foamed the oil. \\ | So all conditions were encountered. The bike ran well the entire time. It never got hot nor foamed the oil. \\ | ||
| Line 102: | Line 103: | ||
| With the added inline fuel filter to strain out the oil vapor from the vented air, no drips were seen in the 100 miles ridden. \\ | With the added inline fuel filter to strain out the oil vapor from the vented air, no drips were seen in the 100 miles ridden. \\ | ||
| - | And with the fuel filter being placed before the PCV valve, the oil should remain in the engine. ((Deimus of the XLFORUM http://xlforum.net/forums/showthread.php?t=67658&page=11)) \\ | + | And with the fuel filter being placed before the PCV valve, the oil should remain in the engine. ((Deimus of the XLFORUM https://www.xlforum.net/forum/sportster-motorcycle-forum/sportster-motorcycle-motor-engine/sportster-motorcycle-bottom-end/35356-install-new-crankcase-vent-04/page11?t=67658&page=11)) \\ |
| |{{techtalk:ref:engmech:04_up_crankcase_vent_9_by_deimus.jpg?direct&200|}}|{{techtalk:ref:engmech:04_up_crankcase_vent_10_by_deimus.jpg?direct&200|}}| | |{{techtalk:ref:engmech:04_up_crankcase_vent_9_by_deimus.jpg?direct&200|}}|{{techtalk:ref:engmech:04_up_crankcase_vent_10_by_deimus.jpg?direct&200|}}| | ||
| - | **Result**: ((Deimus of the XLFORUM http://xlforum.net/forums/showthread.php?t=67658&page=12)) \\ | + | **Result**: ((Deimus of the XLFORUM https://www.xlforum.net/forum/sportster-motorcycle-forum/sportster-motorcycle-motor-engine/sportster-motorcycle-bottom-end/35356-install-new-crankcase-vent-04/page12?t=67658&page=12)) \\ |
| The paper element in the fuel filter became saturated with oil after 150 miles of riding and the vent hose connections began to leak. \\ | The paper element in the fuel filter became saturated with oil after 150 miles of riding and the vent hose connections began to leak. \\ | ||
| So the paper element filters are not appropriate for this application. \\ | So the paper element filters are not appropriate for this application. \\ | ||
| Line 133: | Line 134: | ||
| Under load, this could sling oil up and then drain down into the vent compartment. \\ | Under load, this could sling oil up and then drain down into the vent compartment. \\ | ||
| - | |Vent location inside the cam cover. ((photo by Deimus of the XLFORUM http://xlforum.net/forums/showthread.php?t=67658&page=12)) |A screw hole and two drain holes drilled. ((photo by Deimus of the XLFORUM http://xlforum.net/forums/showthread.php?t=67658&page=12))| | + | |Vent location inside the cam cover.|A screw hole and two drain holes drilled.| |
| |{{techtalk:ref:engmech:04_up_crankcase_vent_11_by_deimus.jpg?direct&300|}}|{{techtalk:ref:engmech:04_up_crankcase_vent_13_by_deimus.jpg?direct&300|}}| | |{{techtalk:ref:engmech:04_up_crankcase_vent_11_by_deimus.jpg?direct&300|}}|{{techtalk:ref:engmech:04_up_crankcase_vent_13_by_deimus.jpg?direct&300|}}| | ||
| - | + | |An aluminum baffle was fabricated.|Finished baffle shown.| | |
| - | + | ||
| - | |An aluminum baffle was fabricated. ((photo by Deimus of the XLFORUM http://xlforum.net/forums/showthread.php?t=67658&page=12))|Finished baffle shown. ((photo by Deimus of the XLFORUM http://xlforum.net/forums/showthread.php?t=67658&page=12))| | + | |
| |{{techtalk:ref:engmech:04_up_crankcase_vent_12_by_deimus.jpg?direct&250|}}|{{techtalk:ref:engmech:04_up_crankcase_vent_14_by_deimus.jpg?direct&300|}}| | |{{techtalk:ref:engmech:04_up_crankcase_vent_12_by_deimus.jpg?direct&250|}}|{{techtalk:ref:engmech:04_up_crankcase_vent_14_by_deimus.jpg?direct&300|}}| | ||
| - | + | \\ | |
| **Result**: \\ | **Result**: \\ | ||
| Line 147: | Line 145: | ||
| However, on the interstate at continuous speeds of 80mph, engine temps hit 245°F for the first time since the vent was installed. \\ | However, on the interstate at continuous speeds of 80mph, engine temps hit 245°F for the first time since the vent was installed. \\ | ||
| (presumably caused by the restriction from the in line fuel filter clogged with oil) \\ | (presumably caused by the restriction from the in line fuel filter clogged with oil) \\ | ||
| - | |||
| - | |||
| **Additional changes**: \\ | **Additional changes**: \\ | ||
| Line 159: | Line 155: | ||
| Now the only openings to the vent in the cam cover are the two holes drilled in the bottom of the vent compartment. \\ | Now the only openings to the vent in the cam cover are the two holes drilled in the bottom of the vent compartment. \\ | ||
| - | **Result**: ((Deimus of the XLFORUM http://xlforum.net/forums/showthread.php?t=67658&page=13)) \\ | + | **Result**: ((Deimus of the XLFORUM https://www.xlforum.net/forum/sportster-motorcycle-forum/sportster-motorcycle-motor-engine/sportster-motorcycle-bottom-end/35356-install-new-crankcase-vent-04/page13?t=67658&page=13)) \\ |
| Previously when the inline filter was restricting the air flow, the engine oil temp readily hit 245°F. \\ | Previously when the inline filter was restricting the air flow, the engine oil temp readily hit 245°F. \\ | ||
| Line 172: | Line 168: | ||
| In fact, it increased operating temps and didn't stop the loss of oil. \\ | In fact, it increased operating temps and didn't stop the loss of oil. \\ | ||
| - | Having a check valve is part of the solution. ((Deimus of the XLFORUM http://xlforum.net/forums/showthread.php?t=67658&page=17)) \\ | + | Having a check valve is part of the solution. ((Deimus of the XLFORUM https://www.xlforum.net/forum/sportster-motorcycle-forum/sportster-motorcycle-motor-engine/sportster-motorcycle-bottom-end/35356-install-new-crankcase-vent-04/page17?t=67658&page=17)) \\ |
| Allowing a pulsing of air into and out of the engine can only compound the oil venting problems at best. \\ | Allowing a pulsing of air into and out of the engine can only compound the oil venting problems at best. \\ | ||
| A worse effect is that the presence of that air in the crankcase on the down strokes of the pistons will cost some engine power as these gasses are compressed. \\ | A worse effect is that the presence of that air in the crankcase on the down strokes of the pistons will cost some engine power as these gasses are compressed. \\ | ||
| The engine is working harder with this fix to sustain 80mph than it did to sustain 4000 rpm in 3rd going 60mph. \\ | The engine is working harder with this fix to sustain 80mph than it did to sustain 4000 rpm in 3rd going 60mph. \\ | ||
| - | This should explain the temps in the different situations: ((Deimus of the XLFORUM http://xlforum.net/forums/showthread.php?t=67658&page=20)) \\ | + | This should explain the temps in the different situations: ((Deimus of the XLFORUM https://www.xlforum.net/forum/sportster-motorcycle-forum/sportster-motorcycle-motor-engine/sportster-motorcycle-bottom-end/35356-install-new-crankcase-vent-04/page20?t=67658&page=20)) \\ |
| Running 4000 rpm going 60mph, the temp was 220°F. \\ | Running 4000 rpm going 60mph, the temp was 220°F. \\ | ||
| Running 60mph in 5th gear and the temp was only 200°F. \\ | Running 60mph in 5th gear and the temp was only 200°F. \\ | ||
| Line 183: | Line 179: | ||
| These three examples were all sustained runs of 15 minutes or more in each situation. \\ | These three examples were all sustained runs of 15 minutes or more in each situation. \\ | ||
| - | The location of the factory vent fitting in the cam cover that was used for the "Tee" vent mod is very close to the cam gears. ((Deimus of the XLFORUM http://xlforum.net/forums/showthread.php?t=67658&page=22)) \\ | + | The location of the factory vent fitting in the cam cover that was used for the "Tee" vent mod is very close to the cam gears. ((Deimus of the XLFORUM https://www.xlforum.net/forum/sportster-motorcycle-forum/sportster-motorcycle-motor-engine/sportster-motorcycle-bottom-end/35356-install-new-crankcase-vent-04/page22?t=67658&page=22)) \\ |
| The Tee mod worked pretty well except for high speed cruising. \\ | The Tee mod worked pretty well except for high speed cruising. \\ | ||
| So much oil is being slung around that fitting in those conditions that adding a vent there will be oily. \\ | So much oil is being slung around that fitting in those conditions that adding a vent there will be oily. \\ | ||
| Line 190: | Line 186: | ||
| \\ | \\ | ||
| - | |||
| - | |||
| - | |||
| \\ | \\ | ||
| [[:techtalk:menu|{{:techtalk:gototechnicalmenu.jpg|}}]] | [[:techtalk:menu|{{:techtalk:gototechnicalmenu.jpg|}}]] | ||
