Quote:
Originally Posted by amagalla
My thought is that the locking tool is to lock the motor by locking the crank shaft. The tool locks the crank shaft in front. The picture above locks the crank from the rear. The cam lock is to keep the spring load in the head from moving the cams when there is slack in the chain (tensioner removed for that bank). Is that not correct? Or, is there another reason for having the engine at TDC?
Tony
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The engine has to be a TDC, as that is the
only rotational position where all of the valves are close and the cams are unloaded (spring pressure is what causes these engines to jump time). Any other position and at least one or more valves are partially open and under spring loads.
If the cams do not sit in the correct position at TDC, something is wrong and needs to be corrected before moving forward. Did you check the cam deviation values before you started this project?