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techtalk:ih:engmech04 [2022/10/05 22:42] hippysmack [Sub-Documents] |
techtalk:ih:engmech04 [2023/12/27 20:17] (current) hippysmack |
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| - | Rocker covers are all the same technically from 1957 to 1985. ((IronMick of the XLFORUM http://xlforum.net/forums/showthread.php?t=2073162)) \\ | + | 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. The should be no concerns about mixing ones from different years respectively per side. \\ | Different part numbers are a different finish or style. The should be no concerns about mixing ones from different years respectively per side. \\ | ||
| - | 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)) \\ | + | 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 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|}}||| | ||
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| | 1957-1985 Sportster Rocker Boxes ||| | | 1957-1985 Sportster Rocker Boxes ||| | ||
| |Year Model| Part Number || | |Year Model| Part Number || | ||
| Line 27: | Line 28: | ||
| |83 XLX ((1979-1985 HD Parts Catalog pg 7))|17524-83|17525-83| | |83 XLX ((1979-1985 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 http://xlforum.net/forums/showthread.php?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)) \\ |
| - | ===== 57-70 ===== | + | ===== 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|}}| | ||
| - | ===== 71-85 (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)) \\ | + | ===== 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 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 Box Gaskets ===== | ||
| + | 1957-1969 Sportsters did not come factory with rocker box gaskets. \\ | ||
| + | Instead, a layer of silver paint was applied between each rocker box and head for sealing. \\ | ||
| + | In 1970, a gasket (17536-70) was introduced and retros back to 1957 models. The same gasket is used on each rocker box (2 required). \\ | ||
| + | |||
| + | {{:techtalk:ih:engmech:1957-1985_sportster_rocker_box_gaskets_17536-70_by_jrsvintageharley1990.jpg?direct&400|}} ((photo courtesy of Ebay seller, jrsvintageharley1990. [[https://www.ebay.com/str/jrsvintageharleyparts?_trksid=p2047675.l2563|Link to Ebay Store]] )) \\ | ||
| + | |||
| ====== 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|}}| | ||
| Line 52: | Line 62: | ||
| 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? \\ | ||
| Line 82: | Line 92: | ||
| 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)) \\ |
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