I'm ready to install the stock rb20 exhaust manifold and just wanted a few pointers to make sure I do it properly.
The manifold has been machined so it's smooth and straight. I'm assuming the mating surface of the engine is straight as well...? Chances that it's not are probably very low, but I'll check with a straight edge anyway.
I know the torque specs and sequence, but how should it be done? In one pass, or 2 or 3 passes? Should I torque down in one go, or is it better practice to tighten down evenly, in the correct sequence, once or twice before torquing down to spec?
There are some nuts that are impossible to get a torque wrench on, do I just eyeball it, or is there a special method/tool?
After installation is it necessary to recheck nuts after a few days of driving?
What about things like gasket sealants? Are they overkill? If all surfaces are clean, smooth and straight with fresh gaskets, I'm guessing they're not needed?
Thanks heaps