Differences
This shows you the differences between two versions of the page.
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techtalk:evo:engmech04l [2021/07/06 22:03] hippysmack created |
techtalk:evo:engmech04l [2024/01/04 01:36] (current) hippysmack |
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| Start the engine and watch the area of the line between the shaft and rocker box. \\ | Start the engine and watch the area of the line between the shaft and rocker box. \\ | ||
| If the shaft is turning, you'll see back and forth movement of the straight line on the shaft. \\ | If the shaft is turning, you'll see back and forth movement of the straight line on the shaft. \\ | ||
| + | |||
| | Checking rocker arm shaft movement ((photo by billyj7175 of the XLFORUM)) | | | Checking rocker arm shaft movement ((photo by billyj7175 of the XLFORUM)) | | ||
| |{{:techtalk:evo:engmech:rocker_box_by_billyj7175_annotated_by_hippysmack.jpg?direct&300|}}| | |{{:techtalk:evo:engmech:rocker_box_by_billyj7175_annotated_by_hippysmack.jpg?direct&300|}}| | ||
| + | \\ | ||
| At this [[http://www.dkcustomproducts.com/rocker-lockers-for-harley-davidson-twin-cam-motors-dk-rl-tc.htm|LINK]] there are two videos. \\ | At this [[http://www.dkcustomproducts.com/rocker-lockers-for-harley-davidson-twin-cam-motors-dk-rl-tc.htm|LINK]] there are two videos. \\ | ||
| Line 26: | Line 28: | ||
| Aftermarket rocker bolt spacers are made to close the gap between the bolts and the shafts. \\ | Aftermarket rocker bolt spacers are made to close the gap between the bolts and the shafts. \\ | ||
| - | It's important to note that no engine needs these. ((DK Custom of the XLFORUM http://xlforum.net/forums/showthread.php?t=1935736&page=5)) \\ | + | It's important to note that no engine needs these. ((DK Custom of the XLFORUM https://www.xlforum.net/forum/vendors/dk-custom-products/180112-rocker-lockers-quiet-down-annoying-top-end-ticking/page5?t=1935736&page=5)) \\ |
| There is nothing detrimental to the engine when it is ticking because of the rocker shafts banging into the bolts. \\ | There is nothing detrimental to the engine when it is ticking because of the rocker shafts banging into the bolts. \\ | ||
| The only reason they would be "needed" is if the ticking bothers the owner of the bike. | The only reason they would be "needed" is if the ticking bothers the owner of the bike. | ||
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| And also through a hole in the (exhaust only) rocker arm shaft on the exhaust side behind the shaft bushing. | And also through a hole in the (exhaust only) rocker arm shaft on the exhaust side behind the shaft bushing. | ||
| - | The issue of the noise could be easily fixed at the factory with shoulder bolts. ((DK Custom of the XLFORUM http://xlforum.net/forums/showthread.php?t=1935736&page=5)) \\ | + | The issue of the noise could be easily fixed at the factory with shoulder bolts. ((DK Custom of the XLFORUM https://www.xlforum.net/forum/vendors/dk-custom-products/180112-rocker-lockers-quiet-down-annoying-top-end-ticking/page5?t=1935736&page=5)) \\ |
| In fact, each of us could fix it with shoulder bolts. But those are more costly than the bolt spacers. \\ | In fact, each of us could fix it with shoulder bolts. But those are more costly than the bolt spacers. \\ | ||
| Experiments were done with bolts that had larger (precisely machined) shoulders. \\ | Experiments were done with bolts that had larger (precisely machined) shoulders. \\ | ||
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| - In very much of what HD does, they use very loose tolerances. \\ Not because they are needed, simply because it is easier and less expensive. \\ This is not just in the engine, but on the frame also. | - In very much of what HD does, they use very loose tolerances. \\ Not because they are needed, simply because it is easier and less expensive. \\ This is not just in the engine, but on the frame also. | ||
| - | Most of the time when using the machined bolts (instead of rocker bolt spacers) everything worked fine. ((DK Custom of the XLFORUM http://xlforum.net/forums/showthread.php?t=1935736&page=5)) \\ | + | Most of the time when using the machined bolts (instead of rocker bolt spacers) everything worked fine. ((DK Custom of the XLFORUM https://www.xlforum.net/forum/vendors/dk-custom-products/180112-rocker-lockers-quiet-down-annoying-top-end-ticking/page5?t=1935736&page=5)) \\ |
| However, a small percentage of the time, when there was not any play between the diameter of the bolt and the diameter of the bolt hole, \\ | However, a small percentage of the time, when there was not any play between the diameter of the bolt and the diameter of the bolt hole, \\ | ||
| We were unable to get the rocker box sitting exactly where it should. \\ | We were unable to get the rocker box sitting exactly where it should. \\ | ||
| The rocker bolt spacers take into account the cascading effect of loose HD tolerances. \\ | The rocker bolt spacers take into account the cascading effect of loose HD tolerances. \\ | ||
| - | |||
| ===== Rocker Lockers ===== | ===== Rocker Lockers ===== | ||
| - | |||
| [[http://rockerlockers.com/|Rocker Lockers]] eliminate the gap between the rocker mounting bolt and the slot in the rocker arm shaft. \\ | [[http://rockerlockers.com/|Rocker Lockers]] eliminate the gap between the rocker mounting bolt and the slot in the rocker arm shaft. \\ | ||
| They are available at [[http://www.dkcustomproducts.com/rocker-lockers-c215.htm|DKCustoms]] | They are available at [[http://www.dkcustomproducts.com/rocker-lockers-c215.htm|DKCustoms]] | ||
