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techtalk:evo:engmech01g [2022/04/01 22:42] hippysmack [Machining Date (2004-up)] |
techtalk:evo:engmech01g [2022/04/04 14:17] (current) hippysmack [2004-E2007 Covers] |
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| |{{:techtalk:ih:engmech:1985_xl-xls_cam_cover_25208-84a_by_nitrofrankie_go-fast_hd_pic4.jpg?direct&300|}}|{{:techtalk:evo:engmech:1986-1990_sportster_cam_cover_25219-86_by_deadpartsmc_pic5.jpg?direct&300|}}|{{:techtalk:evo:engmech:1986-1990_sportster_cam_cover_date_codes.jpg?direct&300|}}| | |{{:techtalk:ih:engmech:1985_xl-xls_cam_cover_25208-84a_by_nitrofrankie_go-fast_hd_pic4.jpg?direct&300|}}|{{:techtalk:evo:engmech:1986-1990_sportster_cam_cover_25219-86_by_deadpartsmc_pic5.jpg?direct&300|}}|{{:techtalk:evo:engmech:1986-1990_sportster_cam_cover_date_codes.jpg?direct&300|}}| | ||
| - | ===== Machining Date (2004-up) ===== | + | ===== Machining Dates (2004-up) ===== |
| 2004-up cam covers have a several numbers pin stamped on the inside of the cover. \\ | 2004-up cam covers have a several numbers pin stamped on the inside of the cover. \\ | ||
| Original location was on the rear near the oil tank breather fitting. \\ | Original location was on the rear near the oil tank breather fitting. \\ | ||
| Later covers were stamped on the inside front in the round portion behind the oil filter mount. \\ | Later covers were stamped on the inside front in the round portion behind the oil filter mount. \\ | ||
| - | There are 2 sets of numbers with the first being the month, day and year followed by a set of unknown numbers. \\ | + | There are 2 sets of numbers with the first being the month, day and year of machining (holes drilled, bushings installed/reamed etc.) \\ |
| - | The unknown numbers may be production, control or operator numbers and possibly a mix of these. \\ | + | The next set of numbers are for unknown reasons at this time. \\ |
| + | The unknown numbers may be production, control or operator numbers and possibly a mix of the same. \\ | ||
| + | 2004-2006 covers also have a circled date stamp that was faded out for model season 2007. \\ | ||
| + | As per usual, the remainder of 2006 covers were used out in the early part of the 2007 season (running change). \\ | ||
| + | So 2004-2006 and some 2007 covers will have both machining dates and casting dates. \\ | ||
| ====== 1986-1990 Cam Covers ====== | ====== 1986-1990 Cam Covers ====== | ||
| The same HD part number (25219-86) was used for 1986-1990 cam covers. \\ | The same HD part number (25219-86) was used for 1986-1990 cam covers. \\ | ||
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| ====== 2004-Up Cam Covers ====== | ====== 2004-Up Cam Covers ====== | ||
| - | **Casting number change**: \\ | + | There are only 4 cam cover part number changes on 2004-2016 Sportsters, and most likely beyond and not counting XR models. \\ |
| + | They are the same cover with different finishes: polished, chrome, black or gray. \\ | ||
| + | The XR cover is a completely different design. \\ | ||
| + | Figuring that there was a casting/design change in 2007, that leaves a total of 2 versions of these covers not counting surface finish or XRs. \\ | ||
| + | |||
| + | **2007 Casting number change**: \\ | ||
| The same casting design (25230-04) was used from 2004 through an early 2007 running design change to casting# (25230-04A). \\ | The same casting design (25230-04) was used from 2004 through an early 2007 running design change to casting# (25230-04A). \\ | ||
| The casting number change has a direct correlation to the removal of casting bumps in the feed galley of the cover. \\ | The casting number change has a direct correlation to the removal of casting bumps in the feed galley of the cover. \\ | ||
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| |{{:techtalk:evo:engmech:2007e_sportster_cam_cover-_inside_by_deadpartsmc.jpg?direct&300|}}| | |{{:techtalk:evo:engmech:2007e_sportster_cam_cover-_inside_by_deadpartsmc.jpg?direct&300|}}| | ||
| - | + | ===== 2004-E2007 Covers ===== | |
| - | + | ||
| + | ===== L2007-Up Covers ===== | ||
| \\ | \\ | ||
