Ben has it down very well...and below should help as well.
THIS procedure should help with the details.
And
THIS should help show which timing marks to look at with the light. The single mark (should be white) is the crank TDC mark, the group of three marks are the timing marks, the one in the middle should be colored red if the pulley isn't too rusty. the VX should be set to that mark shows at 16* BTDC.
Be sure to have all accessories turned off and as well as the blower fan when setting the timing.
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