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techtalk:evo:engmech01f [2019/11/27 22:17] hippysmack [#2 Cam - Cover Seal (86-03)] |
techtalk:evo:engmech01f [2019/11/27 22:22] hippysmack [#2 Cam - Cover Seal (86-03)] |
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|Push the cover on carefully by hand. Do not use the \\ screws to pull the cover flush against the case. ((photo by cjburr of the XLFORUM http://xlforum.net/forums/showthread.php?t=49615))|1/4"x20 bolt lengths and torque. ((photo by Hippysmack))| | |Push the cover on carefully by hand. Do not use the \\ screws to pull the cover flush against the case. ((photo by cjburr of the XLFORUM http://xlforum.net/forums/showthread.php?t=49615))|1/4"x20 bolt lengths and torque. ((photo by Hippysmack))| | ||
- | |{{:techtalk:evo:engmech:cam_cover_installation_by_cjburr.jpg?direct&300|}}|{{:techtalk:evo:engmech:98_gearcase_cover_by_hippysmack.jpg?direct&300|}}| | + | |{{:techtalk:evo:engmech:cam_cover_installation_by_cjburr.jpg?direct&300|}}|{{:techtalk:evo:engmech:98_gearcase_cover_by_hippysmack.jpg?direct&400|}}| |
====== Gaskets / Seals ====== | ====== Gaskets / Seals ====== | ||
+ | |||
+ | 91 and up Sportster engines have an internal rifling hole drilled into the lower left side of the case running past the left side of the oil pump. \\ | ||
+ | That extra hole (in the picture below) is benign and doesn't need a hole in the gasket to match. \\ | ||
+ | That hole is purely an artifact of how they connected two passages for routing crankcase oil up to the oil pump's scavenge section. \\ | ||
+ | They drill that hole to connect the two passages, and then it gets blocked off naturally by the cam box cover and gasket. ((aswracing of the XLFORUM http://xlforum.net/forums/showthread.php?t=2036109&highlight=oil+pump&page=3)) \\ | ||
+ | |||
+ | Also, in 2000, the factory changed the oil routing to the lifters to make manufacturing the cases easier. \\ | ||
+ | The newer cam cover on the left in the pic below and has two extra grooves along the top. \\ | ||
+ | These grooves let oil get to the lifters. \\ | ||
+ | If you have an older style gasket, it will not have cutouts for the grooves and you won't get oil to the lifters. \\ | ||
+ | |||
+ | | Rubbermount Evo vs Rigid Evo Cam Cover Internals ((photo by Moved On of the XLFORUM http://xlforum.net/forums/showthread.php?t=87313)) | | ||
+ | |{{:techtalk:evo:oil:rubbermount_vs_rigid_evo_cam_cover_comparison_by_moved_on.jpg?direct&600|}}| | ||
+ | | Both have been chopped on the outside but the gearcase perimeter is intact on them for reference. | | ||
+ | |||
+ | | 91-99 cam cover gasket ((photo by Hippysmack)) | 91-99 cam cover seals off the extra hole. ((photos by Hippysmack)) || | ||
+ | |{{:techtalk:evo:oil:91-99_cam_cover_gasket_2_by_hippysmack.jpg?direct&300|}}|{{:techtalk:evo:oil:91-99_cam_cover_gasket_1_by_hippysmack.jpg?direct&300|}}|{{:techtalk:evo:oil:91-99_cam_cover_gasket_4_by_hippysmack.jpg?direct&300|}}| | ||
+ | |||
+ | | 2000-up cam cover gasket ((photo by Phillober of the XLFORUM http://xlforum.net/forums/showthread.php?t=1122547&page=7)) |2000 up gasket seals off the extra hole. ((sep69 of the XLFORUM http://xlforum.net/forums/showthread.php?t=2036109&highlight=oil+pump&page=3))| | ||
+ | |{{:techtalk:evo:oil:2000_up_cam_cover_gasket_by_phillober.jpg?direct&300|}}|{{:techtalk:evo:oil:cam_cover_gasket_on_03_model_by_sep69.jpg?direct&300|}}| | ||
+ | |||
===== #2 Cam - Cover Seal (86-03) ===== | ===== #2 Cam - Cover Seal (86-03) ===== | ||
Seal number (11124): \\ | Seal number (11124): \\ |