Differences

This shows you the differences between two versions of the page.

Link to this comparison view

Both sides previous revision Previous revision
Next revision
Previous revision
Next revision Both sides next revision
techtalk:evo:oil03c [2019/08/17 01:45]
hippysmack [Considerations]
techtalk:evo:oil03c [2019/08/17 15:45]
hippysmack [Cam chest drain in 77-97 engines]
Line 50: Line 50:
 That's the only tight spot, the newer oil pump bolts right up otherwise. But, with a little grinding, it can be done. ((aswracing http://​xlforum.net/​forums/​showthread.php?​t=135265&​page=4)) ​ That's the only tight spot, the newer oil pump bolts right up otherwise. But, with a little grinding, it can be done. ((aswracing http://​xlforum.net/​forums/​showthread.php?​t=135265&​page=4)) ​
  
-==== Un-needed cam chest drain in newer oil pumps ====+==== Cam chest drain in 77-97 engines ​====
  
 +98 and up oil pumps will bolt straight up to 77 -97 engines. \\
 +However, 77-97 engines drain the cam chest to the crankcase. \\
 +'98 and later pumps all have a scavenge inlet in the cam box and therefore your motor'​s cam box to crankcase drain is not needed and actually not desirable. ((aswracing of the XLFORUM http://​xlforum.net/​forums/​showthread.php?​t=559906)) \\
 +So a complete update would include plugging that drain. \\
 +The '07 Buell pump has a bigger scavenge section than the standard Pro-Flow. \\
 +Unless you go to a multi-section Pro-Flow and all the associated plumbing, you're better off with the 07 pump. \\
 +
 +{{:​techtalk:​evo:​oil:​pre-98_cam_chest_drain_by_aswracing.jpg?​direct&​300|}} ((photo by aswracing of the XLFORUM http://​xlforum.net/​forums/​showthread.php?​t=559906)) {{:​techtalk:​evo:​oil:​pre-2000_cam_chest_drain_by_aswracing.jpg?​direct&​350|}} ((photo by aswracing of the XLFORUM http://​xlforum.net/​forums/​showthread.php?​t=559906))
 +**
 +There is also another option of modding the oil pump cam drain port instead**. \\
 +The cam port on the pump is blocked off. \\
 +Currently the only known company that does this mod is Karling Racing in Sweden. \\
 +See more on the [[techtalk:​ref:​oil05f|Karling Oil Pump Mod]] for the newer oil pumps here in the Sportsterpedia. \\
 ==== Internal vs external oiling features ==== ==== Internal vs external oiling features ====