Guys if you are servicing your sparkies on Nissans remember to buy a OE intake manifold gasket aswell. You dont want to reuse the old. Yes the manifold has to come off it's not hard at all plus you get to see the condition of your ports anyway. Nissan also recommends replacing the throttle body gasket every time it is disasembled. Asess its condition. Also check the intake piping between it and the filter housing it usually breaks. Especially since age of most J10's its probably broken If you see oil in the spark plug walls/oil leaking from valve cover, cancel your work and order a valve cover gasket. Some Nissans don't use a gasket, instead they use RTV and usally those also have seperate gaskets sealing the sparks. In this case you have to press them in properly with a tool Now get to work 🔥