we checked the fans and they were blowing air through the rad - so fine


then we went onto change the head gasket which when we took it off definately looked like it needed changing

but now we cant get it to fire up, it spins over fine, every now and then while spinning over you get a faint pop from the exhaust

while taking the head off somehow theyellow connector plug managed to get caught between the head andthe block snapping some of it so for the time being we have just used connectors - btw what does the yellow one control???

timing has been checked and is fine

petrol is fine


anything else that could bestopping it starting???