Hi everyone

Would anyone on here be kind enough to try and help me ?
I have fitted a new timing chain to my 2.0 dohc 8v and I have followed the Haynes manual and also the info on this website .
Have the crank at 6 o'clock tdc and the cam sprockets set at a quarter 3 tdc . My engine turns over by hand 2 full turns and all marks line up to tdc . But my engine won't start .
Is there anything I'm not doing correct ? Don't want to keep cranking engine over incase I wreck it.

Really hope someone on here can help.

Thanks