Camshaft degree

Please watch the video AGAIN. You are NOT "calling some random depth TDC."

You are using the random depth to ADUST (either the degree wheel or pointer) so that it is actually DISPLAYING TDC

Just like the video...............................

1---You set up the wheel and pointer

2---You install a piston stop at a "random depth."

3---Rotate engine the normal rotation until the piston stops on the device. NOTE the degree wheel reading, whatever that might be

4---Rotate engine in the OPPOSITE direction, (CCW) until it AGAIN stops at the device, and again note the degree wheel reading.

5---True TDC is HALF WAY between the two readings, so you must adjust the pointer/ degree wheel HALF the difference.

(In the video example, the degree wheel had a DIFFERENCE of 1 degree between the two readings. . That means the pointer/ wheel was 1/2 degree wrong.)