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| techtalk:ih:engmech01g [2025/08/01 18:52] – [Inspection] hippysmack | techtalk:ih:engmech01g [2025/08/01 19:40] (current) – [Inspection] hippysmack |
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| ====== Inspection ====== | ====== Inspection ====== |
| * **Inspect the cam bushings**. [[techtalk:ih:engmech02c#installing_pinning_and_reaming_cam_bushings|Click Here]] to view the page in Sportsterpedia on Installing, Pinning and Reaming Cam Bushings. | * **Inspect the cam bushings**. Check the clearances per the service manual and replace any out of service bushings. Also check for scoring or scratches. [[techtalk:ref:tools107#cam_bushing_measuring_removal_installation_tools|Click Here]] for Cam Bushing Measuring / Removal / Installation Tools. [[techtalk:ih:engmech02c#installing_pinning_and_reaming_cam_bushings|Click Here]] to view the page in Sportsterpedia on Installing, Pinning and Reaming Cam Bushings. |
| * **Inspect the point cover/ignition seal** in the cover. | * **Inspect the point cover/ignition seal** in the cover (see below). |
| * Look for ID leaks; a marred cam journal, seal lip not getting up on the full journal diameter or a missing dog bone thrust plate on far side of cam. ((Dr Dick of the XLFORUM https://www.xlforum.net/forum/sportster-motorcycle-forum/sportster-motorcycle-era-specific-and-model-specific/ironhead-sportster-motorcycle-talk-1957-1985/128889-points-cover-seal-leak/page2?t=1341815&page=2)) Also look for a blocked drain hole (putting the seal in too far can do this). The seal goes flush to outer surface. A new bushing too long hitting the seal lip when the seal was installed would do it also. Same as the seal bore not concentric to the cam bushing (holds seal off center). | * Look for ID leaks; a marred cam journal, seal lip not getting up on the full journal diameter or a missing dog bone thrust plate on far side of cam. ((Dr Dick of the XLFORUM https://www.xlforum.net/forum/sportster-motorcycle-forum/sportster-motorcycle-era-specific-and-model-specific/ironhead-sportster-motorcycle-talk-1957-1985/128889-points-cover-seal-leak/page2?t=1341815&page=2)) Also look for a blocked drain hole (putting the seal in too far can do this). The seal goes flush to outer surface. A new bushing too long hitting the seal lip when the seal was installed would do it also. Same as the seal bore not concentric to the cam bushing (holds seal off center). |
| * Look for OD leaks; the seal bore nicked, tearing the seal OD when installing it. | * Look for OD leaks; the seal bore nicked, tearing the seal OD when installing it. |
