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techtalk:ref:oil05f [2019/05/25 03:55] hippysmack [Conclusions from testing] |
techtalk:ref:oil05f [2019/08/15 02:20] hippysmack [07 Up Oil Pump Mod For Use in 86-90 Engines] |
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Karling Racing in Sweden designed this mod after flow testing a 2007-up Sportster oil pump for use in an 86-90 engine. ((Jorgen of the XLFORUM http://xlforum.net/forums/showthread.php?t=1619616&page=42)) ((https://www.karlingracing.com/sv)) \\ | Karling Racing in Sweden designed this mod after flow testing a 2007-up Sportster oil pump for use in an 86-90 engine. ((Jorgen of the XLFORUM http://xlforum.net/forums/showthread.php?t=1619616&page=42)) ((https://www.karlingracing.com/sv)) \\ | ||
- | | Karling Racing's oil pump mod for 07-up oil pumps. ((photo by Jorgen of the XLFORUM http://xlforum.net/forums/showthread.php?t=1619616&page=42)) | | + | | Karling Racing's oil pump mod for 07-up oil pumps. ((photo by Jorgen of the XLFORUM http://xlforum.net/forums/showthread.php?t=1619616&page=42)) | Another Karling modded oil pump ((photo by Rubine of the XLFORUM http://xlforum.net/forums/showthread.php?t=1861960&page=10)) | |
|{{:techtalk:ref:oil:karling_racing_07_oil_pump_mod_by_jorgen.jpg?direct&300|}}| | |{{:techtalk:ref:oil:karling_racing_07_oil_pump_mod_by_jorgen.jpg?direct&300|}}| | ||
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The pressure regulator in the 86-91 engine will dump excess oil into the gearcase as it was designed to do. \\ | The pressure regulator in the 86-91 engine will dump excess oil into the gearcase as it was designed to do. \\ | ||
Some of this will also splash get splash into the cam chest drain port. \\ | Some of this will also splash get splash into the cam chest drain port. \\ | ||
- | The regulator is notorious for leaking oil into the gearcase as well when not activated. \\ | + | The regulator is notorious for leaking oil into the gearcase as well (when not activated by designed means). \\ |
So the results, even though interesting, will vary constantly inside a running 86-90 engine. \\ | So the results, even though interesting, will vary constantly inside a running 86-90 engine. \\ | ||
+ | However, the Karling mod will eliminate the chance of cavitation in the oil pump (that's due from induced air into the cam chest port of the newer style oil pumps) \\ | ||