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techtalk:evo:engmech04a [2019/02/12 17:38] hippysmack [About Relieving Valve Pressure] |
techtalk:evo:engmech04a [2019/02/12 17:41] hippysmack [About Relieving Valve Pressure] |
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| It may take longer if it's particularly cold or if you're using heavy oil. \\ | It may take longer if it's particularly cold or if you're using heavy oil. \\ | ||
| But if you're sitting at overlap TDC, you may never see the valves close because the lifter will shorten as far as it goes and still be too long. \\ | But if you're sitting at overlap TDC, you may never see the valves close because the lifter will shorten as far as it goes and still be too long. \\ | ||
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| - | You should never turn over the motor or attempt to start it until bleed down is complete. \\ | ||
| - | Doing so can easily cause valve-to-valve and/or valve-to-piston contact, causing valves to bend. \\ | ||
| - | Even installing the rocker box with the motor not positioned properly puts the valves at risk. \\ | ||
| - | If one or both valves is held off it's seat due to the lifter not fully bleeding down, and you try to start the motor, and by some miracle you don't bend a valve, that cylinder won't run anyway, because it'll have no compression. \\ | ||
| **There are two TDC's for EACH cylinder**. ((aswracing of the XLFORUM http://xlforum.net/forums/showthread.php?t=1874585)) \\ | **There are two TDC's for EACH cylinder**. ((aswracing of the XLFORUM http://xlforum.net/forums/showthread.php?t=1874585)) \\ | ||
