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techtalk:evo:engmech04e [2021/07/13 05:36] – created hippysmacktechtalk:evo:engmech04e [2021/09/01 02:28] (current) – [Cast Numbers and Date Coding] hippysmack
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 ====== EVO: Engine Mechanicals - Sub-04E ====== ====== EVO: Engine Mechanicals - Sub-04E ======
-====== Pics of Evo Sportster Rocker Boxes ======+====== Pics and Information on Evo Sportster Rocker Boxes ====== 
 +\\ 
 +====== Cast Numbers and Date Coding ====== 
 +[[techtalk:evo:engmech04#rocker_box_part_numbers|Click Here]] to reference part numbers for the different rocker boxes (includes casting numbers). \\ 
 +[[techtalk:miscres:miscres51|Click Here]] to reference Casting Numbers Explained in the Misc section of the Sportsterpedia. \\ 
 +You'll notice several cast-in numbers/letters/symbols on the different pieces of each full rocker box set. \\ 
 + 
 +**Casting Number**: \\ 
 +The number cast into the different rocker box sections IS NOT the part number. \\ 
 +It has the -xx year code on the end but that number denotes the certain features that were cast into that certain piece. \\ 
 +Even though the casting number is the same for many different boxes, the outside finish may have changed for different sections of the box assembly. \\ 
 +(along with the list part number) \\ 
 +It's the part number listed in the respective parts catalogs that differentiate the finish for the respective model motor intended. \\ 
 + 
 +**Year Code**: \\ 
 +The year code is a circle with the last two digits of the year in the center and 12 "pie slices" cast around the year code. \\ 
 +Some of the "pie slices" will have a dot cast into it. Count the number of slices that have dots in them to find the month the part was made. \\ 
 +I.E., in the middle section below there is a circle that has 8 slices dotted and a "94" cast into the center representing August of 1994 production date. \\ 
 +Then look at the other corner of that same side which also has a circle cast into it. \\ 
 +There are 6 "pie slices" around the number "4". \\ 
 +So it appears this middle rocker box was made in August of 1994. \\ 
 +The 4 in the day chart may be a control number as 8-4-1994 was actually on a Thursday (Monday seems to be marked in the pic below). \\ 
 + 
 +|  Date codes on 1994 Sportster middle rocker box spacer ((photos by Ebay seller, animalhouse2010 [[https://www.ebay.com/str/animalhouse2010?_trksid=p2047675.l2563|Link to Ebay Store]]  ))   ||Casting# on 2004-2005 Sportster lower rocker box ((photo by Ebay seller, Rusty Dusty Motorcycle Parts [[https://www.ebay.com/str/bialystreasures|Ebay store link:]] ))|  
 +|{{:techtalk:evo:engmech:rocker_box_date_code_evo_pic1_by_animalhouse2010_edited.jpg?direct&300|}}|{{:techtalk:evo:engmech:rocker_box_date_code_evo_pic2_by_animalhouse2010_edited.jpg?direct&300|}}|{{:techtalk:evo:engmech:rocker_box_casting_number_by_rusty_dusty_motorcycle_parts.jpg?direct&300|}}|