Hi.
You are to set the crank and cam so they line up 6 and 12 o'clock. Don't worry about #1 TDC. The crank has a key on it and the cam has a specific bolt pattern to ensure they are timed.
You really only need to worry about #1 TDC when installing a distributor if equipped. This way you get the #1 plug to fire on TDC.
Due to having the crank key way and bolt pattern, it allows you to only align them one way and you need to have them lined up when removing the chain and sprockets and then do not make a crank or cam rotation with the chain off or you will be out of time and the engine will be damaged. It is okay if they move a little because you can just line them back up but if they make a rotation then you will be in trouble.
Here is the detail about how to do it. As you see the book doesn't mention anything about TDC.
Let me know if you need anything else. Thanks
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Friday, August 21st, 2020 AT 12:32 PM
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