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Degreeing-in begins with accurately finding TDC, which serves as the key reference point for the cam phasing. TDC can be found with a piston stop, a deck bridge and dial indicator, or an indicator on a stand. Start by setting up a degree wheel and pointer at the crank, and set it up to indicate zero degrees at an eyeballed TDC. Next, use the dial indicator to fine tune the pointer. Since the exact TDC point is difficult to distinguish on the indicator, a checking height in the vicinity of TDC is used before and after TDC (the actual checking height isn't critical; I use both 0.025 and 0.050 inch). Zero the indicator at TDC, and then rotate the crank to the checking height before and after TDC, recording the degree wheel readings. Adjust the pointer so that the readings are the same value before and after TDC at the checking height. When the values are the same, the zero mark will be centered at TDC. When making the checks, the crank should be rotated in the normal direction of rotation.