Editing Determining top dead center (section)
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===A word on using the damper retaining bolt to turn the engine over=== If the damper/balancer retaining bolt is used to turn the crank over, the bolt can loosen if turned CCW. If this happens the bolt will need to be retorqued (60 ft/lbs on a SBC, 85 ft/lbs on a BBC). Another risk is in stripping the threads or breaking the bolt off if you use the damper bolt to turn the engine over. If you feel resistance, or if the bolt tightens more as you attempt to turn the crankshaft- STOP! You will need to use a remote starter switch, or turn the damper by hand (plugs out), or turn the flexplate/flywheel from beneath the vehicle. The safest/easiest way to turn the crank is to use a tool that allows a large ratchet or breaker bar to be used. <gallery> File:Crank turning tool.jpg|Damper-mounted crank turning tool File:Crank turning tool2.jpg|Crank snout-mounted crank turning tool </gallery> <br style="clear: both" />
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