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techtalk:ref:svcproc21 [2021/07/31 22:43] hippysmack [Engine Prep] |
techtalk:ref:svcproc21 [2021/07/31 22:47] hippysmack [Engine Prep] |
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| **Piston position**: | **Piston position**: | ||
| * You can leak test a cylinder at any position so long as the valves are closed. However, TDC on Compression stroke is the accepted practice for this test. | * You can leak test a cylinder at any position so long as the valves are closed. However, TDC on Compression stroke is the accepted practice for this test. | ||
| - | * On a worn cylinder, the most wear is usually in the top inch or so, that is why there is a noticeable ridge there on a worn jug. The least wear is at the bottom inch or so. \\ So I if you want the acid test of how the rings are sealing, it should be done at or close to TDC. Put the bike in high gear to stop piston moving. ((Hopper of the XLFORUM http://xlforum.net/forums/showthread.php?t=48311&page=2)) | + | * On a worn cylinder, the most wear is usually in the top inch or so, that is why there is a noticeable ridge there on a worn jug. The least wear is at the bottom inch or so. \\ So if you want the acid test of how the rings are sealing, it should be done at or close to TDC. Put the bike in high gear to stop piston moving. ((Hopper of the XLFORUM http://xlforum.net/forums/showthread.php?t=48311&page=2)) |
| * The test takes only a few seconds to repeat so you can also test several locations as long as both valves are closed. | * The test takes only a few seconds to repeat so you can also test several locations as long as both valves are closed. | ||
