2.2 timing
 

I have a 2003 rodeo with a 2.2, I'm trying to set the timing. The crank pulley does not have a mark on it and the keyword on the crankshaft is at the top when the #1 piston is tdc. So do I keep the crank in that position and on the intake cam should the first cam love press down on valve. I line up the marks and when I rotate the the crank 2 revolutions my marks on the cams do not line back up. Is there anything I'm missing.