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techtalk:ih:engmech04a [2019/06/14 18:58]
hippysmack [Pros and Cons of Functionality]
techtalk:ih:engmech04a [2019/06/14 19:19]
hippysmack [Pros and Cons of Functionality]
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 Your pushrods are doing the same thing 29 times a second at 3500 rpm. \\ Your pushrods are doing the same thing 29 times a second at 3500 rpm. \\
 The last thing we want is to make things less rigid. \\ The last thing we want is to make things less rigid. \\
 +
 +The pushrods have enough trouble with harmonics without adding another place for the valve train to flex. ((mrmom9r of the XLFORUM http://​xlforum.net/​forums/​showthread.php?​t=1682099&​highlight=splitting+rocker+box)) \\
 +I've seen flex as high as .025" just rolling an engine with big valve springs over on the bench. \\
  
 Even on dead stock valve train the naked eye can actually see the pushrod end of split boxes flex when pushing the kicker thru. ((DR DICK of the XLFORUM http://​xlforum.net/​forums/​showthread.php?​t=1719533&​highlight=splitting+rocker+box&​page=2)) \\ Even on dead stock valve train the naked eye can actually see the pushrod end of split boxes flex when pushing the kicker thru. ((DR DICK of the XLFORUM http://​xlforum.net/​forums/​showthread.php?​t=1719533&​highlight=splitting+rocker+box&​page=2)) \\
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 To keep the strength of the center bolt design, you can weld up the oiling cross hole and run external lines from the outside. ((ryder rick of the XLFORUM http://​xlforum.net/​forums/​showthread.php?​t=1998127&​highlight=split+rocker+box&​page=2)) \\ To keep the strength of the center bolt design, you can weld up the oiling cross hole and run external lines from the outside. ((ryder rick of the XLFORUM http://​xlforum.net/​forums/​showthread.php?​t=1998127&​highlight=split+rocker+box&​page=2)) \\
 That is better than splitting the boxes. \\ That is better than splitting the boxes. \\
 +
 +To dual plug the heads, the plug electrode location is what is critical, not the angle the plug screws in from. ((ryder rick of the XLFORUM http://​xlforum.net/​forums/​showthread.php?​t=1682099&​highlight=splitting+rocker+box)) \\
 +You can use a small spark plug 12mm or even 10mm. A big plug doesn'​t make any bigger spark. \\
 +{{:​techtalk:​ih:​engmech:​dual_plugging_ihs_1_by_ryder_rick.jpg?​direct&​300|}} ((photo by ryder rick of the XLFORUM http://​xlforum.net/​forums/​showthread.php?​t=1682099&​highlight=splitting+rocker+box)) \\{{:​techtalk:​ih:​engmech:​dual_plugging_ihs_2_by_ryder_rick.jpg?​direct&​300|}} ((photo by ryder rick of the XLFORUM http://​xlforum.net/​forums/​showthread.php?​t=1682099&​highlight=splitting+rocker+box)) \\
  
 ====== General Process Of Splitting the Rocker Box ====== ====== General Process Of Splitting the Rocker Box ======