| Both sides previous revisionPrevious revisionNext revision | Previous revision |
| techtalk:ih:engmech04 [2022/10/05 22:57] – [Rocker Box Gaskets] hippysmack | techtalk:ih:engmech04 [2025/05/23 02:09] (current) – [Sub-Documents] hippysmack |
|---|
| ====== 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 http://xlforum.net/forums/showthread.php?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 http://xlforum.net/forums/showthread.php?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 http://xlforum.net/forums/showthread.php?t=1946888)) \\ | |
| |
| ===== 1957-1970 ===== | ===== 1957-1970 ===== |
| |
| | Rocker boxes from a 68 XLCH. ((photos by ChefRex of the XLFORUM http://xlforum.net/forums/showthread.php?page=2&t=1946888)) ||| | | Rocker boxes from a 68 XLCH. ((photos by ChefRex 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/page2?page=2&t=1946888)) ||| |
| |{{:techtalk:ih:engmech:68_rocker_boxes_1_by_chefrex.jpg?direct&300|}}|{{:techtalk:ih:engmech:68_rocker_boxes_2_by_chefrex.jpg?direct&300|}}|{{:techtalk:ih:engmech:68_rocker_boxes_3_by_chefrex.jpg?direct&300|}}| | |{{:techtalk:ih:engmech:68_rocker_boxes_1_by_chefrex.jpg?direct&300|}}|{{:techtalk:ih:engmech:68_rocker_boxes_2_by_chefrex.jpg?direct&300|}}|{{:techtalk:ih:engmech:68_rocker_boxes_3_by_chefrex.jpg?direct&300|}}| |
| | |
| ===== 1971-1985 (except XLX) ===== | ===== 1971-1985 (except XLX) ===== |
| The 71 up have a thicker rib across the pushrod side and most people feel they're more rigid. ((mrmom9r of the XLFORUM http://xlforum.net/forums/showthread.php?t=1682099&highlight=splitting+rocker+box)) \\ | The 71 up have a thicker rib across the pushrod side and most people feel they're more rigid. ((mrmom9r of the XLFORUM https://www.xlforum.net/forum/sportster-motorcycle-forum/sportster-motorcycle-era-specific-and-model-specific/ironhead-sportster-motorcycle-talk-1957-1985/157216-my-way-of-dual-plugging-heads?t=1682099&highlight=splitting+rocker+box)) \\ |
| They do look better under a strobe light than the early ones. \\ | They do look better under a strobe light than the early ones. \\ |
| {{:techtalk:ih:engmech:71_xlch_rocker_boxes_by_the_doctor71.jpg?direct&300|}} ((photo by The Doctor71 of the XLFORUM http://xlforum.net/forums/showthread.php?t=1946888)) \\ | {{:techtalk:ih:engmech:71_xlch_rocker_boxes_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)) \\ |
| |
| | 71-85 rocker boxes (F: 17514-71 and R: 17515-71). ((photos by sc72 of the XLFORUM http://xlforum.net/forums/showthread.php?t=1717592&page=11)) ||| | | 71-85 rocker boxes (F: 17514-71 and R: 17515-71). ((photos by sc72 of the XLFORUM https://www.xlforum.net/forum/sportster-motorcycle-forum/sportster-motorcycle-era-specific-and-model-specific/ironhead-sportster-motorcycle-talk-1957-1985/160106-where-to-go-from-here/page11?t=1717592&page=11)) ||| |
| |{{:techtalk:ih:engmech:71-85_rocker_boxes_4_by_sc72.jpg?direct&250|}}|{{:techtalk:ih:engmech:71-85_rocker_boxes_3_by_sc72.jpg?direct&250|}}|{{:techtalk:ih:engmech:71-85_rocker_boxes_2_by_sc72.jpg?direct&250|}}| | |{{:techtalk:ih:engmech:71-85_rocker_boxes_4_by_sc72.jpg?direct&250|}}|{{:techtalk:ih:engmech:71-85_rocker_boxes_3_by_sc72.jpg?direct&250|}}|{{:techtalk:ih:engmech:71-85_rocker_boxes_2_by_sc72.jpg?direct&250|}}| |
| |{{:techtalk:ih:engmech:71-85_rocker_boxes_1_by_sc72.jpg?direct&250|}}|{{:techtalk:ih:engmech:71-85_rocker_boxes_5_by_sc72.jpg?direct&250|}}|{{:techtalk:ih:engmech:71-85_rocker_boxes_6_by_sc72.jpg?direct&250|}}| | |{{:techtalk:ih:engmech:71-85_rocker_boxes_1_by_sc72.jpg?direct&250|}}|{{:techtalk:ih:engmech:71-85_rocker_boxes_5_by_sc72.jpg?direct&250|}}|{{:techtalk:ih:engmech:71-85_rocker_boxes_6_by_sc72.jpg?direct&250|}}| |
| |
| ====== Rocker Arms ====== | ====== Rocker Arms ====== |
| | Rocker arms on a 69 XLH ((photos by austinshovel of the XLFORUM http://xlforum.net/forums/showthread.php?t=1913766&highlight=rocker+arm+bushings)) || | | Rocker arms on a 69 XLH ((photos by austinshovel of the XLFORUM https://www.xlforum.net/forum/sportster-motorcycle-forum/sportster-motorcycle-era-specific-and-model-specific/ironhead-sportster-motorcycle-talk-1957-1985/177954-rocker-arms-assemblies-1969-xlh?t=1913766&highlight=rocker+arm+bushings)) || |
| |{{:techtalk:ih:engmech:ih_rocker_arms_1_by_austinshovel.jpg?direct&300|}}|{{:techtalk:ih:engmech:ih_rocker_arms_2_by_austinshovel.jpg?direct&300|}}| | |{{:techtalk:ih:engmech:ih_rocker_arms_1_by_austinshovel.jpg?direct&300|}}|{{:techtalk:ih:engmech:ih_rocker_arms_2_by_austinshovel.jpg?direct&300|}}| |
| |
| The flat end goes down and the flared end goes up. \\ | The flat end goes down and the flared end goes up. \\ |
| |
| And here is why. (Pushrod tube orientation by Dr Dick) ((http://xlforum.net/forums/showpost.php?p=3855693&postcount=11)) \\ | And here is why. (Pushrod tube orientation by Dr Dick) ((https://www.xlforum.net/forum/sportster-motorcycle-forum/sportster-motorcycle-era-specific-and-model-specific/ironhead-sportster-motorcycle-talk-1957-1985/132128-pushrod-tubes?postcount=11#post2826714)) \\ |
| Pushrod tubes seal in 3 places. 2 of those, the upper and lower corks, seal on their flat faces. \\ | Pushrod tubes seal in 3 places. 2 of those, the upper and lower corks, seal on their flat faces. \\ |
| Now think about the center cork. What does it seal? \\ | Now think about the center cork. What does it seal? \\ |
| When possible, while building your ride working to extend the period between these required attentions may keep money in your pocket and your bike on the road. \\ | When possible, while building your ride working to extend the period between these required attentions may keep money in your pocket and your bike on the road. \\ |
| |
| {{:techtalk:ih:engmech:1979_xlh1000_pushrod_tube_orientation_by_smerch.jpg?direct&400|}} ((photo by Smerch of the XLFORUM, cropped and labeled by Hippysmack http://xlforum.net/forums/showthread.php?p=3835539&highlight=pushrod+tube+upside#post3835539)) \\ | {{:techtalk:ih:engmech:1979_xlh1000_pushrod_tube_orientation_by_smerch.jpg?direct&400|}} ((photo by Smerch of the XLFORUM, cropped and labeled by Hippysmack https://www.xlforum.net/forum/sportster-motorcycle-forum/sportster-motorcycle-era-specific-and-model-specific/ironhead-sportster-motorcycle-talk-1957-1985/132128-pushrod-tubes/page2?highlight=pushrod+tube+upside#post3835539)) \\ |
| |
| \\ | \\ |
| [[:techtalk:menu|{{:techtalk:gototechnicalmenu.jpg|}}]] | [[:techtalk:menu|{{:techtalk:gototechnicalmenu.jpg|}}]] |
