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techtalk:ref:transfinal01a [2023/01/25 07:03]
ixl2relax
techtalk:ref:transfinal01a [2023/01/25 07:20]
ixl2relax [Installing Chain-to-Belt Conversion]
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 This conversion information provided by '​dave76'​ of the XLForum - http://​xlforum.net/​forums/​showthread.php?​t=2082025 This conversion information provided by '​dave76'​ of the XLForum - http://​xlforum.net/​forums/​showthread.php?​t=2082025
  
-I finally found time to finish this project. ​Took it for a ride (freezing weather - but I enjoyed it). The belt is definitely quieter and smoother than the chain configuration.+I finally found time to finish this project ​on my 1990 1200 XLH SportsterI took it for a ride afterwards ​(it was freezing weather - but I enjoyed it). The belt is definitely quieter and smoother than the chain configuration. 
 + 
 +{{:​techtalk:​ref:​transfinal:​dave76-cn-blt-02.jpg?​600|image1}}
  
 ===== Parts ===== ===== Parts =====
  
-I found multiple used rear pulleys on eBay under $50 got a used but perfect 128 tooth belt for $65 got the belt guard for $35. Only bought a new VTwin front pulley for $85.+I found multiple used rear pulleys on eBay under $50 got a used but perfect 128 tooth belt for $65 got the belt guard for $35. Only bought a new VTwin front pulley for $85.\\ 
 +{{:​techtalk:​ref:​transfinal:​dave76-cn-blt-03.jpg?​400|image1}}
  
-A standard 1991 belt drive sprocket cover will be needed, the left middle bolt is no longer used so I just used a short faux bolt and nut.+Top: Belt guard ---------- Bottom: 4 speed chain guard\\ 
 +{{:​techtalk:​ref:​transfinal:​dave76-cn-blt-04.jpg?​400|image1}}
  
-The belt I used was 1-1/8" wide with 128 teeth. This puts the axle adjuster in the middle of the range.+A standard 1991 Belt Drive Sprocket Cover will be needed, the left middle bolt is no longer used so just used a short faux bolt and nut.
  
-The main part numbers that I was able to find were:+The Belt I used was 1-1/8" wide with 128 teeth. This puts the axle adjuster in the middle of the range. 
 + 
 +**The main part numbers that I was able to find were:**
  
 40271-89 -- Front drive pulley 27 tooth 40271-89 -- Front drive pulley 27 tooth
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 ===== Details ===== ===== Details =====
  
-I bought the counterbore from eBay. This is needed to sink one of the case bolts about 3/16 of an inch to provide better belt clearance. +{{:​techtalk:​ref:​transfinal:​dave76-cn-blt-01.jpg?400|image1}}
- +
-To clear the new belt drive sprocket, I used a 1991-up Drive Sprocket Cover. The top rear stand-off stud (near the motor mount) needs to removed. It is replaced with a 7/16-14 x 2” boltThe unused (open) hole in the sprocket cover just gets a faux bolt and nut. +
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-image1 +
-Belt guard top, 4 speed chain guard bottom +
- +
-image2 +
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-image3 +
-This is the counter bore bit needed to recess the engine case bolt 3/16” more +
- +
-image4 +
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-image5 +
-This top bolt was used in place of the large 7/16 standoff stud +
- +
-image6 +
-This is the bolt that needs to be counter bored to clear the big belt sprocket. +
  
 +I bought the counterbore from eBay. This is needed to sink one of the case bolts about 3/16 of an inch to provide better belt clearance.\\
 +{{:​techtalk:​ref:​transfinal:​dave76-cn-blt-05.jpg?​600|image1}}\\
 +\\
 +{{:​techtalk:​ref:​transfinal:​dave76-cn-blt-06.jpg?​400|image1}}
  
 +To clear the new belt drive sprocket, I used a 1991-up Drive Sprocket Cover. On the engine, the top rear stand-off stud (near the motor mount) needs to removed. It is replaced with a 7/16-14 x 2” bolt. The unused (open) hole in the sprocket cover just gets a faux bolt and nut.\\
 +{{:​techtalk:​ref:​transfinal:​dave76-cn-blt-07.jpg?​400|image1}}