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techtalk:ih:engmech02 [2021/07/02 05:22] hippysmack [Pinion Gear] |
techtalk:ih:engmech02 [2021/08/07 08:09] hippysmack |
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| |CAM 3 → ((photo by supr2nr of the XLFORUM http://xlforum.net/forums/showthread.php?t=239641&highlight=cam+positions))|CAM 4 → ((photo by supr2nr of the XLFORUM http://xlforum.net/forums/showthread.php?t=239641&highlight=cam+positions))|All done. ✔((photo by supr2nr of the XLFORUM http://xlforum.net/forums/showthread.php?t=239641&highlight=cam+positions))| | |CAM 3 → ((photo by supr2nr of the XLFORUM http://xlforum.net/forums/showthread.php?t=239641&highlight=cam+positions))|CAM 4 → ((photo by supr2nr of the XLFORUM http://xlforum.net/forums/showthread.php?t=239641&highlight=cam+positions))|All done. ✔((photo by supr2nr of the XLFORUM http://xlforum.net/forums/showthread.php?t=239641&highlight=cam+positions))| | ||
| |{{:techtalk:ih:engmech:installing_76_cams_5_by_supr2nr.jpg?direct&300|}}|{{:techtalk:ih:engmech:installing_76_cams_6_by_supr2nr.jpg?direct&300|}}|{{:techtalk:ih:engmech:installing_76_cams_7_by_supr2nr.jpg?direct&300|}}| | |{{:techtalk:ih:engmech:installing_76_cams_5_by_supr2nr.jpg?direct&300|}}|{{:techtalk:ih:engmech:installing_76_cams_6_by_supr2nr.jpg?direct&300|}}|{{:techtalk:ih:engmech:installing_76_cams_7_by_supr2nr.jpg?direct&300|}}| | ||
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| - | ====== Installing the Pinion Gear ====== | ||
| - | |||
| - | * From the 79 to 85 FM, there is a timing mark on the pinion shaft and a timing mark on the pinion gear. These must line up. ((IronMick of the XLFORUM http://xlforum.net/forums/showthread.php?t=239641&highlight=cam+positions&page=3)) | ||
| - | |||
| - | |{{:techtalk:ih:engmech:pinionshafttimemark_by_ironmick.jpg?direct&200|}}| | ||
| - | |Pinion Shaft Timing Mark ((photo by IronMick of the XLFORUM http://xlforum.net/forums/showthread.php?t=239641&highlight=cam+positions&page=3))| | ||
| ====== Camshaft Shims ====== | ====== Camshaft Shims ====== | ||
| Line 113: | Line 106: | ||
| ===== Sub-Documents ===== | ===== Sub-Documents ===== | ||
| * . . . [[techtalk:ih:engmech02a|Gearcase Cover Removal]] | * . . . [[techtalk:ih:engmech02a|Gearcase Cover Removal]] | ||
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| - Old style gearcase covers (XLH 25227-81) and (XLS 25229-81) have a rubber plug on the lower left. | - Old style gearcase covers (XLH 25227-81) and (XLS 25229-81) have a rubber plug on the lower left. | ||
| - New style gearcase covers (XLH 25208-81) and (XLS 25209-81) replaced the rubber plug with a hex capscrew and also contains the extra mounting hole (top left). | - New style gearcase covers (XLH 25208-81) and (XLS 25209-81) replaced the rubber plug with a hex capscrew and also contains the extra mounting hole (top left). | ||
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| ====== Pinion Gear ====== | ====== Pinion Gear ====== | ||
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| |24061-74 (black)|:::| | |24061-74 (black)|:::| | ||
| - | The 57-76 pinion gear needs to be a tight fit. However, it's a common problem to find them loose on a used engine. ((Dr Dick of the XLFORUM http://xlforum.net/forums/showthread.php?t=1072235)) \\ | + | **The 57-76 pinion gear needs to be a tight fit**. However, it's a common problem to find them loose on a used engine. ((Dr Dick of the XLFORUM http://xlforum.net/forums/showthread.php?t=1072235)) \\ |
| The trick in selecting the right fit part during assembly. The gear is supposed to be "size for size" with the major diameter of the shaft splines. \\ | The trick in selecting the right fit part during assembly. The gear is supposed to be "size for size" with the major diameter of the shaft splines. \\ | ||
| The press actually is between the sides of 1 male shaft spline and it's matching female in gear. \\ | The press actually is between the sides of 1 male shaft spline and it's matching female in gear. \\ | ||
| Line 155: | Line 146: | ||
| However, leaving the gear loose makes you 1 of 80% of Ironhead riders. Worse side effect is non stop "tappet noise". It can be heard even just pushing the motor over with kicker. \\ | However, leaving the gear loose makes you 1 of 80% of Ironhead riders. Worse side effect is non stop "tappet noise". It can be heard even just pushing the motor over with kicker. \\ | ||
| It's usually not "destructive" problem to leave it as is and you can't use an adhesive to "glue" the pinion gear on. \\ | It's usually not "destructive" problem to leave it as is and you can't use an adhesive to "glue" the pinion gear on. \\ | ||
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| + | The 79-85 pinion gear slides up on a timing mark on the pinion shaft and corresponding to a timing mark on the pinion gear. These must line up. ((IronMick of the XLFORUM http://xlforum.net/forums/showthread.php?t=239641&highlight=cam+positions&page=3)) | ||
| + | |||
| Click on any pic below to enlarge: \\ | Click on any pic below to enlarge: \\ | ||
| | 1957-1976 Pinion Gear. ((photo courtesy of Ebay seller, Evil Genius M/C Parts. [[https://www.ebay.com/str/evilgeniusmcparts?_trksid=p2047675.l2563|Link to Ebay Store]] )) || | | 1957-1976 Pinion Gear. ((photo courtesy of Ebay seller, Evil Genius M/C Parts. [[https://www.ebay.com/str/evilgeniusmcparts?_trksid=p2047675.l2563|Link to Ebay Store]] )) || | ||
| |{{:techtalk:ih:engmech:pinion_gear_pic2_24011-37_by_evilgeniushd1936.jpg?direct&300|}}|{{:techtalk:ih:engmech:pinion_gear_pic1_24011-37_by_evilgeniushd1936.jpg?direct&300|}}| | |{{:techtalk:ih:engmech:pinion_gear_pic2_24011-37_by_evilgeniushd1936.jpg?direct&300|}}|{{:techtalk:ih:engmech:pinion_gear_pic1_24011-37_by_evilgeniushd1936.jpg?direct&300|}}| | ||
| + | |||
| + | |1977-1985 Pinion Shaft Timing Mark ((photo by IronMick of the XLFORUM http://xlforum.net/forums/showthread.php?t=239641&highlight=cam+positions&page=3))| | ||
| + | |{{:techtalk:ih:engmech:pinionshafttimemark_by_ironmick.jpg?direct&200|}}| | ||
| | 1977-1985 Pinion Gear (24057-74) ((photos courtesy of Ebay seller, Robison Motorcycles [[https://www.ebay.com/str/robisonmotorcycles?_trksid=p2047675.l2563|Link to Ebay Store]] )) || 1977-1985 Pinion Gear (24056-74) App. Dims ((photos courtesy of Ebay seller, Robison Motorcycles [[https://www.ebay.com/str/robisonmotorcycles?_trksid=p2047675.l2563|Link to Ebay Store]] )) | | | 1977-1985 Pinion Gear (24057-74) ((photos courtesy of Ebay seller, Robison Motorcycles [[https://www.ebay.com/str/robisonmotorcycles?_trksid=p2047675.l2563|Link to Ebay Store]] )) || 1977-1985 Pinion Gear (24056-74) App. Dims ((photos courtesy of Ebay seller, Robison Motorcycles [[https://www.ebay.com/str/robisonmotorcycles?_trksid=p2047675.l2563|Link to Ebay Store]] )) | | ||
