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techtalk:evo:oil03c [2019/08/05 12:55]
ixl2relax [Installing the New Oil Pump]
techtalk:evo:oil03c [2019/08/17 15:45] (current)
hippysmack [Cam chest drain in 77-97 engines]
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 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)) ​
  
 +==== 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 ====