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techtalk:ih:engmech04 [2023/12/27 20:17] – hippysmacktechtalk:ih:engmech04 [2025/05/23 02:09] (current) – [Sub-Documents] hippysmack
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 ====== Rocker Box ====== ====== Rocker Box ======
 ===== Sub-Documents ===== ===== Sub-Documents =====
 +* . . . [[:techtalk:ih:engmech04a|Splitting Rocker Boxes]]\\
  
-* . . . [[techtalk:ih:engmech04a|Splitting Rocker Boxes]] \\+===== Interchangeability ===== 
 +Rocker covers are all the same technically from 1957 to 1985. ((IronMick of the XLFORUM https://www.xlforum.net/forum/sportster-motorcycle-forum/sportster-motorcycle-era-specific-and-model-specific/ironhead-sportster-motorcycle-talk-1957-1985/196603-parts-interchange-rocker-boxes-and-rockers?t=2073162))  \\ 
 +Different part numbers are a different finish or style. There should be no concerns about mixing ones from different years respectively per side.\\ 
 +All rocker parts interchange in all boxes except end plugs (see below) and all boxes fit all heads. (1957-1985) \\ 
 +The rocker assm is one of the most trouble free areas on xls. Every rare once in a while you'll find a cracked shaft on late models. They make noise when cracked. All cracked were the late, no earlies.
  
----- +However, rocker shaft end plugs must match the shaft because of it's thread pattern. ((Dr Dick of the XLFORUM https://www.xlforum.net/forum/sportster-motorcycle-forum/sportster-motorcycle-era-specific-and-model-specific/ironhead-sportster-motorcycle-talk-1957-1985/113904-true-diff-betwem-pre-71-rocker-end-caps-screws)) \\ 
-Rocker covers are all the same technically from 1957 to 1985. ((IronMick of the XLFORUM https://www.xlforum.net/forum/sportster-motorcycle-forum/sportster-motorcycle-era-specific-and-model-specific/ironhead-sportster-motorcycle-talk-1957-1985/196603-parts-interchange-rocker-boxes-and-rockers?t=2073162)) \\ +  * (1957-1970) Early shaft parts: Both the shaft and end plugs have 5/16"-24 threads. The shaft is 2 piece shaft & pressed on spool (15/16" od). This is one of those little known facts. The end plugs have a single screwdriver slot. \\ 
-Different part numbers are a different finish or style. The should be no concerns about mixing ones from different years respectively per side. \\+  * (1971) Change year shaft parts: the change happened during the 71 run. All 71's had the 1000 type boxes but came with both shaft/plug combos, depending on early or late model. This change was full on amf. Two pc shaft is way more expensive than one pc to manufacture and allen hex plugs removed the possibility of slipping with a power driver and damaging the cap at the factory. So assm person didn't have to be as "good". Can't sell new bikes if they are scratched.  
 +  * (1972-1985) Late shaft parts: Both the shaft and end plugs have 1/2"-20 threads and the shaft is one piece. The end plugs have an allen key recess. \\
  
-There is, however, a front and a rear. It has to do with the location of the oil feed lines. ((brucstoudt of the XLFORUM https://www.xlforum.net/forum/sportster-motorcycle-forum/sportster-motorcycle-era-specific-and-model-specific/ironhead-sportster-motorcycle-talk-1957-1985/196603-parts-interchange-rocker-boxes-and-rockers?t=2073162)) \\ +The boxes are also directional (having a front and a rear box respectively). It has to do with the location of the oil feed lines. ((brucstoudt of the XLFORUM https://www.xlforum.net/forum/sportster-motorcycle-forum/sportster-motorcycle-era-specific-and-model-specific/ironhead-sportster-motorcycle-talk-1957-1985/196603-parts-interchange-rocker-boxes-and-rockers?t=2073162))  \\ 
-The front box has the hole to the rear. The rear box has the hole to the front. \\ +The front box has the hole to the rear. The rear box has the hole to the front.\\ 
- +^{{:techtalk:miscres:instruction_sheet_header_4.png?nolink&840}}|||
-^{{techtalk:miscres:instruction_sheet_header_4.png?nolink&840|}}|||+
  
 |  1957-1985 Sportster Rocker Boxes  ||| |  1957-1985 Sportster Rocker Boxes  |||
 |Year Model|  Part Number  || |Year Model|  Part Number  ||
-|:::|Front|Rear| +| ::: |Front|Rear| 
-|57-70 XL/XLH/XLCH ((1952-1957 HD Parts Catalog  for al Sportster and K Models pg 4)) ((1954-1976 HD Parts Catalog pg 5)) |17514-57|17515-57| +|57-70 XL/XLH/XLCH ((-1957 HD Parts Catalog for al Sportster and K Models pg 4))  ((-1976 HD Parts Catalog pg 5))  |17514-57|17515-57| 
-|71-85 XL/XLCH/XLS \\ (polished) ((1979-1985 HD Parts Catalog pg 7)) |17514-71|17515-71| +|71-85 XL/XLCH/XLS \\ (polished) ((-1985 HD Parts Catalog pg 7))  |17514-71|17515-71| 
-|83 XLX ((1979-1985 HD Parts Catalog pg 7))|17524-83|17525-83|+|83 XLX ((-1985 HD Parts Catalog pg 7))  |17524-83|17525-83| 
 + 
 +{{:techtalk:ih:engmech:74_xlh_rocker_box_by_the_doctor71.jpg?direct&300}}((photo by The Doctor71 of the XLFORUM https://www.xlforum.net/forum/sportster-motorcycle-forum/sportster-motorcycle-era-specific-and-model-specific/ironhead-sportster-motorcycle-talk-1957-1985/180885-rocker-box?t=1946888))
  
-{{:techtalk:ih:engmech:74_xlh_rocker_box_by_the_doctor71.jpg?direct&300|}} ((photo by The Doctor71 of the XLFORUM https://www.xlforum.net/forum/sportster-motorcycle-forum/sportster-motorcycle-era-specific-and-model-specific/ironhead-sportster-motorcycle-talk-1957-1985/180885-rocker-box?t=1946888)) \\ 
  
 ===== 1957-1970 ===== ===== 1957-1970 =====

Trace: • IH: Engine Mechanicals • REF: Tools & Fasteners • EVO: Engine Mechanicals - Sub-04J • EVO: Engine Mechanicals - Sub-04E