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techtalk:ref:tools050 [2022/03/21 23:45] hippysmack [Find Acceptable Screw Length by Measuring the Depth of a Light Seat] |
techtalk:ref:tools050 [2022/03/22 00:55] hippysmack |
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Below are suggestions for finding the lengths of unknown cam cover screws and where they go. \\ | Below are suggestions for finding the lengths of unknown cam cover screws and where they go. \\ | ||
- | 1957-1985 parts catalogs contain the threads and lengths for the bolts but do not show where they go. \\ | + | Some parts books list the length screws/bolts HD sold for certain applications. \\ |
+ | 1957-1985 parts catalogs contain the threads and lengths for the cover mounting screws but do not show where they go. \\ | ||
Screw thread size was taken out of the parts books in 1986 and was put back in the books in later years. \\ | Screw thread size was taken out of the parts books in 1986 and was put back in the books in later years. \\ | ||
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- | All cam cover mounting bolts have 1/4"x20 threads with various quantities used (8, 9 or 11 screws depending on year model). \\ | ||
- | The parts books list the length screws/bolts HD sold for certain applications. \\ | ||
And historically, some lengths have either been misprinted (as in motor mount bolts) or changed at the parts dept. from time to time. \\ | And historically, some lengths have either been misprinted (as in motor mount bolts) or changed at the parts dept. from time to time. \\ | ||
+ | 1991-2003 parts books show where SOME of the bolts go but not all and 2004-up parts books do show where all the go. \\ | ||
+ | All cam cover mounting bolts have 1/4"x20 threads with various quantities used (8, 9 or 11 screws depending on year model). \\ | ||
====== Find Proper Screw Length by Uniformity ====== | ====== Find Proper Screw Length by Uniformity ====== | ||
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Dims were transferred to the pic below. Click on the pic to enlarge: \\ | Dims were transferred to the pic below. Click on the pic to enlarge: \\ | ||
{{:techtalk:ih:engmech:1980_xlh_gearcase_cover_-_found_screw_sizes_by_wheatstateparts.jpg?direct&400|}} ((photo courtesy of Ebay seller, WheatStateParts. [[https://www.ebay.com/str/cos0608|Link to Ebay Store]] )) | {{:techtalk:ih:engmech:1980_xlh_gearcase_cover_-_found_screw_sizes_by_wheatstateparts.jpg?direct&400|}} ((photo courtesy of Ebay seller, WheatStateParts. [[https://www.ebay.com/str/cos0608|Link to Ebay Store]] )) | ||
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====== Find the depth of the holes in the gearcase ====== | ====== Find the depth of the holes in the gearcase ====== | ||
With the cam cover off; \\ | With the cam cover off; \\ |