VinceSez wrote:I have a 92 240sx... The timing chain just started 2 days ago, but it very faint when I hear it at idle. For now, I'll just have the top guides removed, and worry about the timing chain later.
if it's just a faint noise, don't worry about it. you can put it off if you like. if there's a particular reason you want to change the timing chain other than noise, that's a different story. it's actually pretty easy if you follow the write up i mentioned earlier. if you're still unsure about it, find a friend that's mechanically inclined to help you. you can just remove the top guide but it's worth it to di in further to do both.
the EGR tube is a metal tube that runs from the exhaust manifold to the intake around the backside of the engine. the easiest way to see it is to stand by the driver's side wheel looking at the exhaust manifold. there is a tube about 3/4" in diameter coming from the back of the manifold near the firewall. if you find it, it will probably look alright, but the problem is taking it off. the nut is probably rusted solid to the manifold and it is very thin for some reason, it bends very easily. i suggest you order one and return it if you dont need it.