Differences
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techtalk:ih:engmech01d [2022/03/24 04:04] hippysmack [1952-1953 K Model Primary Cover] |
techtalk:ih:engmech01d [2023/12/20 02:08] (current) hippysmack |
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| The HD part number is (34951-52) and the casting number is (34950-52). \\ | The HD part number is (34951-52) and the casting number is (34950-52). \\ | ||
| Gasket: (34955-52). \\ | Gasket: (34955-52). \\ | ||
| - | Fasteners: (3) cover screws and no dowel pins. \\ | + | Fasteners: (3) cover screws and no dowel pins. Case has pin bosses but they are not drilled out. \\ |
| The original cover finish is natural (as cast). \\ | The original cover finish is natural (as cast). \\ | ||
| Cover has a divot in the lower bottom to clear the sidestand mount. \\ | Cover has a divot in the lower bottom to clear the sidestand mount. \\ | ||
| Line 22: | Line 22: | ||
| The HD part number is (34951-54) and the casting number is (34950-52A). \\ | The HD part number is (34951-54) and the casting number is (34950-52A). \\ | ||
| Gasket: (34955-52A). \\ | Gasket: (34955-52A). \\ | ||
| - | Fasteners: (3) cover screws and no dowel pins. \\ | + | Fasteners: (3) cover screws, (4) 3/16" dia roll pins to locate the cover to the case. \\ |
| The oil level plug boss was moved in front of the lower cover divot, hole was tapped for a screw (3728) and a washer (6218W). \\ | The oil level plug boss was moved in front of the lower cover divot, hole was tapped for a screw (3728) and a washer (6218W). \\ | ||
| Half moon divot added to lower rear near brake switch boss to clear brake lever return spring. \\ | Half moon divot added to lower rear near brake switch boss to clear brake lever return spring. \\ | ||
| Rear brake switch boss on the rear of cover. \\ | Rear brake switch boss on the rear of cover. \\ | ||
| Oil filler plug (34742-52) screws into the cover. It has a small hole through the center to vent the primary compartment. \\ | Oil filler plug (34742-52) screws into the cover. It has a small hole through the center to vent the primary compartment. \\ | ||
| + | |||
| + | Click on a pic to enlarge: ((photos courtesy of Dawg's HD Parts. [[https://www.ebay.com/str/dawgshdparts|Link to Ebay Store]] )) \\ | ||
| + | {{:techtalk:ih:engmech:1954-1956_k_model_primary_chain_cover_by_oso99dog_pic1.jpg?direct&300|}} {{:techtalk:ih:engmech:1954-1956_k_model_primary_chain_cover_by_oso99dog_pic2.jpg?direct&300|}} {{:techtalk:ih:engmech:1954-1956_k_model_primary_chain_cover_by_oso99dog_pic3.jpg?direct&300|}} \\ | ||
| + | |||
| + | {{:techtalk:ih:engmech:1954-1956_k_model_primary_chain_cover_by_oso99dog_pic4.jpg?direct&300|}} {{:techtalk:ih:engmech:1954-1956_k_model_primary_chain_cover_by_oso99dog_pic5.jpg?direct&300|}} {{:techtalk:ih:engmech:1954-1956_k_model_primary_chain_cover_by_oso99dog_pic6.jpg?direct&300|}} \\ | ||
| + | |||
| ====== 1957-1966 XL/XLH Primary Cover ====== | ====== 1957-1966 XL/XLH Primary Cover ====== | ||
| The first primary cover for Sportsters. Cast aluminum with the "Sportster" script cast into it. \\ | The first primary cover for Sportsters. Cast aluminum with the "Sportster" script cast into it. \\ | ||
| 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]] )) \\ | ||
