I changed the water pump on my b20vtec and now I need to set the timing. The cams have not moved since taking it apart but the crankshaft turned while I was removing and installing the timing belt. So I need to get the crank set at tdc but I don't have the lower cover to get it aligned. I set it pretty close by pulling cylinder 1's sparkplug and letting an extension ride the piston until it hit its peak but I was told this was not precise enough. How can I get my crank spot on tdc? Also heard that markings on pulley can't be completely trusted because the pulley can twist some, what I have now:

http://www.flickr.com/photos/69636155@N08/8305209188/

 

You dont need the cover. Line up the "slash" mark on the crank gear(not the crank pulley) with the pointer on the oil pump.

 

Took off pulley and got it all aligned with crank gear, everything went together well after that.