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techtalk:evo:engmech04 [2025/10/01 04:24] hippysmacktechtalk:evo:engmech04 [2025/10/01 04:49] (current) – [Pushrods] hippysmack
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   * [[techtalk:evo:engmech04j|Rocker Arm Inspection and Servicing]]   * [[techtalk:evo:engmech04j|Rocker Arm Inspection and Servicing]]
   * [[techtalk:evo:engmech04l|Stabilizing Noisy Rocker Arm Shafts]]   * [[techtalk:evo:engmech04l|Stabilizing Noisy Rocker Arm Shafts]]
 +  * [[techtalk:evo:engmech04p|Pushrod Length and Valve Train Geometry]]
   * [[techtalk:evo:engmech04q|Removing / Installing Pushrods and Tubes]]   * [[techtalk:evo:engmech04q|Removing / Installing Pushrods and Tubes]]
   * [[techtalk:evo:engmech04s|Top End Oiling]]   * [[techtalk:evo:engmech04s|Top End Oiling]]
Line 105: Line 106:
  
 ====== Pushrods ====== ====== Pushrods ======
-Pushrod lean angle on 91-up engines. 
-The lifters are square to the lifter bore but they're not quite square to the rocker arm slot for the pushrod. \\ 
-There is a slight lean angle between the lifters and the rocker arms as shown below. \\ 
-The pushrod tubes line up square with the lifter blocks and hide the lean angle of the pushrods. \\ 
-In the pics below, a inside bore gauge is lined up app. straight from the lifter bore to the rocker arm slot for the pushrod. \\ 
-This is the app. lean angle of the pushrods between the lifter and the rocker arm. \\ 
-The pushrod angle also changes as the rocker arm moves thru it's arc while the valve is opened and closed. ((Tomcatt of the XLFORUM https://www.xlforum.net/forum/sportster-motorcycle-forum/sportster-motorcycle-era-specific-and-model-specific/efi-sportster-motorcycle-talk-2007-and-up/198138-lifters/page3?t=2074861&page=3)) \\ 
  
-{{:techtalk:evo:engmech:pushrod_lean_angle_1_by_hippysmack.jpg?direct&300|}} ((photo by Hippysmack)) {{:techtalk:evo:engmech:pushrod_lean_angle_2_by_hippysmack.jpg?direct&300|}} ((photo by Hippysmack)) \\