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techtalk:ref:transfinal01a [2023/01/25 06:51] ixl2relax |
techtalk:ref:transfinal01a [2023/01/25 07:33] (current) ixl2relax [Parts] |
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| [[:techtalk:menu|{{ :techtalk:gototechnicalmenu.jpg|}}]] | [[:techtalk:menu|{{ :techtalk:gototechnicalmenu.jpg|}}]] | ||
| - | ====== REF: Gears, Sprockets, Belts - 01A ====== | + | ====== REF: Gears, Sprockets, Belts - Sub-01A ====== |
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| ====== Installing Chain-to-Belt Conversion ====== | ====== 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 Sportster. I 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. |
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| + | {{:techtalk:ref:transfinal:dave76-cn-blt-02.jpg?600|image1}} | ||
| ===== Parts ===== | ===== Parts ===== | ||
| - | 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. | + | I found multiple used rear pulleys on eBay under $50. I got a used but perfect 128 tooth belt for $65.\\ |
| + | I 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}} | ||
| - | The belt I used was 1-1/8" wide with 128 teeth. | + | Top: Belt guard ---------- Bottom: 4 speed chain guard\\ |
| + | {{:techtalk:ref:transfinal:dave76-cn-blt-04.jpg?400|image1}} | ||
| - | Puts the adjuster in the middle. Took it for a ride and froze but I enjoyed it, belt is definitely quieter and smooth. | + | A standard 1991 Belt Drive Sprocket Cover will be needed. The left middle bolt will not be used so I just placed a short faux bolt and nut there. |
| + | 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: | + | **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 | ||
| Line 33: | Line 39: | ||
| ===== Details ===== | ===== Details ===== | ||
| - | image1 | + | {{:techtalk:ref:transfinal:dave76-cn-blt-01.jpg?400|image1}} |
| - | Belt guard top, 4 speed chain guard bottom | + | |
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| - | image2 | + | |
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| - | image3 | + | |
| - | This is the counter bore bit needed to recess the engine case bolt 3/16” more | + | |
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| - | image4 | + | |
| - | + | ||
| - | 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}} | ||
