Dave, the timing marks are at TDC (Top Dead Center) when the pointer is at '0' on the crank pulley. Refer to your Shop Manual under Tuneup Procedure.
BDC=Bottom Dead Center.
Yes, you can put a socket on the crankshaft bolt with a long breaker bar and turn the engine by hand.
My preference is to use a welding rod for measuring because it's thin, clean, easy to mark, and I have dozens of them. You can use a dowel or anything that will fit down a spark plug hole. When you put a 'stick' down the hole, use something as a reference and mark the 'stick'. I use the valve cover flange (the surface where bolts go through the valve cover) because it's convenient and it runs along the side of the head.
You can mark at the spark plug hole if you prefer. It's just a comparison.
BDC=Bottom Dead Center.
Yes, you can put a socket on the crankshaft bolt with a long breaker bar and turn the engine by hand.
My preference is to use a welding rod for measuring because it's thin, clean, easy to mark, and I have dozens of them. You can use a dowel or anything that will fit down a spark plug hole. When you put a 'stick' down the hole, use something as a reference and mark the 'stick'. I use the valve cover flange (the surface where bolts go through the valve cover) because it's convenient and it runs along the side of the head.
You can mark at the spark plug hole if you prefer. It's just a comparison.
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