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techtalk:ih:engmech01d [2022/03/24 06:37] – [1954-1956 K Model Primary Cover] hippysmacktechtalk:ih:engmech01d [2023/12/20 02:08] (current) – hippysmack
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 It was replaced in 1967 when the electric start was added to the H model. \\ It was replaced in 1967 when the electric start was added to the H model. \\
 It is similar to the K-Model (also KH and KHK) primary which preceded it, with two notable differences. \\ It is similar to the K-Model (also KH and KHK) primary which preceded it, with two notable differences. \\
-The K-Model primary didn't have the scrips and the Sportster primary protrudes out further accommodating the compensating spring on the motor sprocket. ((Moon Wolf of the XLFORUM http://xlforum.net/forums/showthread.php?t=1062720)) \\+The K-Model primary didn't have the scrips and the Sportster primary protrudes out further accommodating the compensating spring on the motor sprocket. ((Moon Wolf of the XLFORUM https://www.xlforum.net/forum/sportster-motorcycle-forum/sportster-motorcycle-era-specific-and-model-specific/ironhead-sportster-motorcycle-talk-1957-1985/112326-a-photo-catalog-of-ironhead-parts?t=1062720)) \\
 HD part number is (34951-57) and the casting number is (34950-57). \\ HD part number is (34951-57) and the casting number is (34950-57). \\
  
-{{:techtalk:ih:engmech:1957-1966_xl-xlh_primary_cover_34951-57_by_moon_wolf.jpg?direct&300|}} ((photo by Moon Wolf of the XLFORUM http://xlforum.net/forums/showthread.php?t=1062720)) \\ +{{:techtalk:ih:engmech:1957-1966_xl-xlh_primary_cover_34951-57_by_moon_wolf.jpg?direct&300|}} ((photo by Moon Wolf of the XLFORUM https://www.xlforum.net/forum/sportster-motorcycle-forum/sportster-motorcycle-era-specific-and-model-specific/ironhead-sportster-motorcycle-talk-1957-1985/112326-a-photo-catalog-of-ironhead-parts?t=1062720)) \\ 
 + 
 +Click on a pic to enlarge: ((photos courtesy of Ebay seller, panknuckpartsandtreasures. [[https://www.ebay.com/sch/panknuckpartsandtreasures/m.html?_nkw=&_armrs=1&_ipg=&_from=|Link to Ebay Store]] )) \\ 
 + 
 +{{:techtalk:ih:engmech:1957-1966_xl-xlh_primary_cover_34951-57_by_panknuckpartsandtreasures_pic1.jpg?direct&300|}} {{:techtalk:ih:engmech:1957-1966_xl-xlh_primary_cover_34951-57_by_panknuckpartsandtreasures_pic2.jpg?direct&300|}} {{:techtalk:ih:engmech:1957-1966_xl-xlh_primary_cover_34951-57_by_panknuckpartsandtreasures_pic3.jpg?direct&300|}} \\ 
 + 
 +{{:techtalk:ih:engmech:1957-1966_xl-xlh_primary_cover_34951-57_by_panknuckpartsandtreasures_pic4.jpg?direct&300|}} {{:techtalk:ih:engmech:1957-1966_xl-xlh_primary_cover_34951-57_by_panknuckpartsandtreasures_pic5.jpg?direct&300|}} {{:techtalk:ih:engmech:1957-1966_xl-xlh_primary_cover_34951-57_by_panknuckpartsandtreasures_pic6.jpg?direct&300|}} \\ 
 + 
 +====== 1958-1969 XLCH Primary Covers ====== 
 +The XLCH primary "tin" cover has several versions. Below are the two used on production models from 1958-1969. ((Moon Wolf of the XLFORUM http://xlforum.net/forums/showthread.php?t=1062720)) \\ 
 +There are no casting numbers on these covers as they are stamped steel. \\ 
 +The 1958-1963 version is very similar to the 1964-1969 version. The only difference can be seen from the back. \\ 
 +Notice that the inside of the derby on the 1958-1963 version is smooth because of the two-piece construction. \\ 
 +The '58-'63 XLCH primary covers are sometimes referred to as "double derbies". \\ 
 +Click on a pic below to enlarge: \\ 
 +{{:techtalk:ih:engmech:1958-1969_xlch_primary_covers_by_moon_wolf.jpg?direct&300|}} ((photo by Moon Wolf of the XLFORUM https://www.xlforum.net/forum/sportster-motorcycle-forum/sportster-motorcycle-era-specific-and-model-specific/ironhead-sportster-motorcycle-talk-1957-1985/112326-a-photo-catalog-of-ironhead-parts?t=1062720 labeled by Hippysmack)) 
 + 
 +=== 1958-1963 version === 
 +HD part number is (34949-58) and it's made of stamped steel. \\ 
 + 
 +{{:techtalk:ih:engmech:1958-1963_xlch_primary_cover_by_moon_wolf.jpg?direct&300|}} ((photo by Moon Wolf of the XLFORUM https://www.xlforum.net/forum/sportster-motorcycle-forum/sportster-motorcycle-era-specific-and-model-specific/ironhead-sportster-motorcycle-talk-1957-1985/112326-a-photo-catalog-of-ironhead-parts?t=1062720 labeled by Hippysmack)) 
 + 
 +=== 1964-1969 version === 
 +HD part number is (34949-64) and it's made of stamped and chromed steel. \\ 
 + 
 +Click on a pic below to enlarge: ((photos courtesy of Ebay seller, animalhouse2010, [[https://www.ebay.com/str/animalhouse2010?_trksid=p2047675.l2563|Link to Ebay store:]] )) \\ 
 +{{:techtalk:ih:engmech:1964-1969_xlch_primary_cover_pic1_by_animalhouse2010.jpg?direct&300|}} {{:techtalk:ih:engmech:1964-1969_xlch_primary_cover_pic2_by_animalhouse2010.jpg?direct&300|}} {{:techtalk:ih:engmech:1964-1969_xlch_primary_cover_pic3_by_animalhouse2010.jpg?direct&300|}} \\
  
 ====== 1967-1970 XLH Primary Cover ====== ====== 1967-1970 XLH Primary Cover ======
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 The hump-back on the rear of the cover mates up to the hump on the left case where the starter is mounted. \\ The hump-back on the rear of the cover mates up to the hump on the left case where the starter is mounted. \\
 The boss near the hump holds a Torrington B1210 bearing (9063) for the starter shaft. \\ The boss near the hump holds a Torrington B1210 bearing (9063) for the starter shaft. \\
-The tiny hole below front mounting bolt on the hump (as installed) is for a locating pin to the case. \\ +The tiny hole below front mounting bolt on the hump (as installed) is for a locating pin to the case for bearing alignment. \\ 
  
 Click on a pic to enlarge: ((photos courtesy of Eugene Rousse of River Side Cycle, [[http://www.riversidecycle.net|Link to site]] )) \\ Click on a pic to enlarge: ((photos courtesy of Eugene Rousse of River Side Cycle, [[http://www.riversidecycle.net|Link to site]] )) \\

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