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techtalk:evo:engmech07 [2022/05/12 18:22] hippysmack [Breather Valve Testing] |
techtalk:evo:engmech07 [2022/05/12 18:26] hippysmack [Late 1984-1990 Sportster Breather Valve] |
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| |{{:techtalk:evo:oil:89_cam_cover_1_by_bryan350.jpg?direct&250|}}|{{:techtalk:evo:oil:89_cam_cover_2_by_bryan350.jpg?direct&250|}}|{{:techtalk:evo:oil:89_cam_cover_3_by_bryan350.jpg?direct&250|}}| | |{{:techtalk:evo:oil:89_cam_cover_1_by_bryan350.jpg?direct&250|}}|{{:techtalk:evo:oil:89_cam_cover_2_by_bryan350.jpg?direct&250|}}|{{:techtalk:evo:oil:89_cam_cover_3_by_bryan350.jpg?direct&250|}}| | ||
| | 89 cam cover with breather baffle tube attached (it should be tight but still pull out) ((photos by Bryan350 of the XLFORUM http://xlforum.net/forums/showthread.php?t=1712011)) ||| | | 89 cam cover with breather baffle tube attached (it should be tight but still pull out) ((photos by Bryan350 of the XLFORUM http://xlforum.net/forums/showthread.php?t=1712011)) ||| | ||
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| - | **Testing the L84-90 umbrella valve**: \\ | ||
| - | A working valve should help reduce oil mist. ((Four Speed of the XLFORUM http://xlforum.net/forums/showthread.php?p=5745528#post5745528)) \\ | ||
| - | Since it's a one-way valve, air goes out but doesn't come back in. \\ | ||
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| - | To make sure the umbrella valve is still working; \\ | ||
| - | Before you position the hose, use a bit of clean pipe and blow gently through the breather. \\ | ||
| - | It should close the valve and stop air flow. | ||
| - | You may have to find an aftermarket replacement if the valve is shot as OEM replacements are hard to come by now. \\ | ||
| - | The 5 speed ones do not fit. | ||
| ====== 1991-2003 Sportster Breather Valve ====== | ====== 1991-2003 Sportster Breather Valve ====== | ||
