Differences
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techtalk:ref:svcproc23 [2019/01/09 04:09] ixl2relax ↷ Links adapted because of a move operation |
techtalk:ref:svcproc23 [2019/05/31 00:10] hippysmack [Why Degree Your Cams?] |
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| * You can also degree the cams to eliminate errors in; | * You can also degree the cams to eliminate errors in; | ||
| * General manufacturing of the cams. | * General manufacturing of the cams. | ||
| - | * Proper cam installation. | + | * Proper cam installation. \\ A compression test will also immediately point out a cam timing problem. ((aswracing of the XLFORUM http://xlforum.net/forums/showthread.php?p=2670787&highlight=degree#post2670787)) \\ See also [[techtalk:ref:svcproc20#cylinder_compression_test|Performing a cylinder compression test]] in the REF section of the Sportsterpedia. |
| ====== Setting up the Equipment ====== | ====== Setting up the Equipment ====== | ||
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| The duration can be calculated from the published timing figures. \\ | The duration can be calculated from the published timing figures. \\ | ||
| - | ===== Cam Lift ===== | + | ===== Cam Lobe Lift ===== |
| The actual cam lift is any amount of lift greater (taller) than the base circle. \\ | The actual cam lift is any amount of lift greater (taller) than the base circle. \\ | ||
| This corresponds to how far the valves are open. \\ | This corresponds to how far the valves are open. \\ | ||
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| Check all four cams and compare the results. \\ | Check all four cams and compare the results. \\ | ||
| + | |||
| + | You can also measure cam lobe lift with the cams removed by using a caliper. ((rocketmangb of the XLFORUM http://xlforum.net/forums/showthread.php?s=73d24db8f0756ef41c6215fd92ad0055&p=4726240)) \\ | ||
| + | The base circle is the smallest dimension of a cam lobe. \\ | ||
| + | If you measure the largest dimension of the lobe and subtract the smallest dimension you get the lobe lift. \\ | ||
| + | Multiply that by the rocker ratio and you get the valve lift. \\ | ||
