Differences
This shows you the differences between two versions of the page.
Both sides previous revision Previous revision | Next revision Both sides next revision | ||
techtalk:ref:oil05a [2019/06/12 18:16] hippysmack |
techtalk:ref:oil05a [2019/06/12 18:20] hippysmack [High Pressure Oil Bypass] |
||
---|---|---|---|
Line 11: | Line 11: | ||
Just adding a cooler may not solve this problem. \\ | Just adding a cooler may not solve this problem. \\ | ||
You need to get the oil out of the crankcase so it does not interfere with motion of the crank and cause the heating problem in the first place. \\ | You need to get the oil out of the crankcase so it does not interfere with motion of the crank and cause the heating problem in the first place. \\ | ||
+ | |||
+ | To regulate the oil pressure you have to bleed some of it off. ((aswracing of the XLFORUM http://xlforum.net/forums/showpost.php?p=4341107&postcount=6)) \\ | ||
+ | 4-speeds have a spring loaded pressure regulator built into the oil filter pad that does exactly that. \\ | ||
+ | There's a passage from the filter pad 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. \\ | ||
+ | They did away with this on 5-speed XL's though. \\ | ||
+ | Evo Big Twins have a spring loaded bleed-off regulator, as do Twinkies, XR1200's, and 08-up Buells. \\ | ||
+ | |||
Some have found it useful to build bypass circuits to bleed off excess oil pressure and send it back to the tank. \\ | Some have found it useful to build bypass circuits to bleed off excess oil pressure and send it back to the tank. \\ |