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techtalk:evo:engmech09a [2024/05/12 01:32] – [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. \\ 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 =====
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 As far as fixing goes, I've seen it hold up after welding, and I've seen it just crack again. So that's an iffy repair. The head needs to come off regardless and that vintage heads are generally pretty darn common and not expensive in the used market, so I personally would just replace it. But that's just me. \\ As far as fixing goes, I've seen it hold up after welding, and I've seen it just crack again. So that's an iffy repair. The head needs to come off regardless and that vintage heads are generally pretty darn common and not expensive in the used market, so I personally would just replace it. But that's just me. \\
  
- ((photo by slamtry 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)) \\+{{:techtalk:evo:engmech:1996_883_head_cracked_front_mount_hole_by_slamtry.jpg?direct&400|}} ((photo by slamtry 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)) \\
  
 \\ \\

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