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techtalk:ref:oil05a [2019/06/12 18:20] hippysmack [High Pressure Oil Bypass] |
techtalk:ref:oil05a [2019/08/17 23:12] hippysmack [High Pressure Oil Bypass] |
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If the pressure gets high enough, the regulator opens and bleeds off some of the pressurized oil, dropping it into the cam box. \\ | If the pressure gets high enough, the regulator opens and bleeds off some of the pressurized oil, dropping it into the cam box. \\ | ||
Then it eventually drains down to the crankcase and gets pumped back to the tank. \\ | Then it eventually drains down to the crankcase and gets pumped back to the tank. \\ | ||
- | They did away with this on 5-speed XL's though. \\ | + | They did away with the pressure regulator on 92 and up 5-speed XL's though. \\ |
Evo Big Twins have a spring loaded bleed-off regulator, as do Twinkies, XR1200's, and 08-up Buells. \\ | Evo Big Twins have a spring loaded bleed-off regulator, as do Twinkies, XR1200's, and 08-up Buells. \\ | ||
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Later, a cam chest breather mod was discovered by Deimus of the XLFORUM that was deemed a fix for better crankcase venting. \\ | Later, a cam chest breather mod was discovered by Deimus of the XLFORUM that was deemed a fix for better crankcase venting. \\ | ||
That mod did reduce crankcase pressure allowing for lower engine temps. | That mod did reduce crankcase pressure allowing for lower engine temps. | ||
- | You can read about it here in the Sportsterpedia: [[techtalk:ref:oil05d|Installing the Ultimate Crankcase Vent]]. \\ | + | You can read about it here in the Sportsterpedia: [[techtalk:ref:engmech05d|Installing the Ultimate Crankcase Vent]]. \\ |
**Coincidence**? \\ | **Coincidence**? \\ |