black top 2.0 only use the timing bar in the back of the cam's not the two pin's they are for the 1.25 and 1.4, you do loosen off the cam pulleys and there are normal tread left to loosen. and as far as i remember to time up the crank there are 2 makes on the aux bottom pulley 1 that point's straight down and one at 5 O'clock that lines up to a moulding on the sump. make sure you tention the belt before you do the cam pulleys up so the belt is tight between all pulleys.