Hi
Sorry i don't think this works, firing order is 1-8-4-3-6-5-7-2, so half way through the list is number 6, so 1 and 6 would be at tdc together, therefore 1 and 6, 8 and 5, 4 and 7 and 3 and 2 would at tdc together, the only time i have heard of the 9 rule was for doing the tappets on a four...