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techtalk:evo:engmech09a [2024/05/12 02:38] – [From the Service Manuals] hippysmacktechtalk:evo:engmech09a [2024/05/18 21:32] (current) – [From the Service Manuals] hippysmack
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   - Install rear mount bolts.   - Install rear mount bolts.
   - Install the lower front mounts.   - Install the lower front mounts.
-  - Install the upper front mount. \\ It is not suggested to leave it off. It adds rigidity to the entire engine/frame structure. ((John Harper of the XLFORUM https://www.xlforum.net/forum/sportster-motorcycle-forum/sportster-motorcycle-era-specific-and-model-specific/frame-mount-evo-sportster-talk-1986-2003-models/203891-top-motor-mount)) \\  Tighten the bracket to the head before you tighten the bracket to the frame to keep from introducing any additional stress. ((aswracing of the XLFORUM https://www.xlforum.net/forum/sportster-motorcycle-forum/sportster-motorcycle-era-specific-and-model-specific/frame-mount-evo-sportster-talk-1986-2003-models/193620-crack-in-head#post4209755))+  - Install the upper front mount. \\ It is not suggested to leave it off. It adds rigidity to the entire engine/frame structure (and reduces vibration). ((John Harper of the XLFORUM https://www.xlforum.net/forum/sportster-motorcycle-forum/sportster-motorcycle-era-specific-and-model-specific/frame-mount-evo-sportster-talk-1986-2003-models/203891-top-motor-mount)) \\  Tighten the bracket to the head before you tighten the bracket to the frame to keep from introducing any additional stress.  ((aswracing of the XLFORUM https://www.xlforum.net/forum/sportster-motorcycle-forum/sportster-motorcycle-era-specific-and-model-specific/frame-mount-evo-sportster-talk-1986-2003-models/193620-crack-in-head#post4209755))
   - Install the top center mount.   - Install the top center mount.
  
 +
 +====== Motor Mount Pics ======
 +===== Upper Front Mount =====
 +Here is how the upper front mount looks as installed. \\
 +The washers in the 1st pic aren't OEM matches but as you can see in the 2nd pic, that's Ok. ((photos by Bryan1976 of the XLFORUM https://www.xlforum.net/forum/sportster-motorcycle-forum/sportster-motorcycle-era-specific-and-model-specific/frame-mount-evo-sportster-talk-1986-2003-models/201174-front-motor-mount#post4454811)) \\
 +  * Factory bolts and washers: ((IXL2Relax of the XLFORUM https://www.xlforum.net/forum/sportster-motorcycle-forum/sportster-motorcycle-era-specific-and-model-specific/frame-mount-evo-sportster-talk-1986-2003-models/201174-front-motor-mount#post4454811))
 +    * Bolts (4716W) 3/8"-16 x 1-1/4" Hex Head - Grade 5
 +    * Washers: (6701) 3/8" x 13/16" x 1/16"
 +
 +{{:techtalk:evo:engmech:motor_mount_upper_front_on_rigid_sportster_pic1_by_bryan1976.jpg?direct&400|}} 
 +{{:techtalk:evo:engmech:motor_mount_upper_front_on_rigid_sportster_pic2_by_bryan1976.jpg?direct&400|}} \\
  
 ===== Cracked head at the front mount threads ===== ===== Cracked head at the front mount threads =====