Altima 2.5 SL L4-2.5L (QR25DE) (2002)
3. Tighten the rocker cover bolts in two steps, in the numerical order as shown.
Rocker cover bolt tightening 1st step: 1.0 - 2.9 Nm (0.1 - 0.3 kg-m, 9 - 26 inch lbs.)
Rocker cover bolt tightening 2nd step: 7.4 - 9.3 Nm (0.75 - 0.95 kg-m, 65 - 82 inch lbs.)
4. Connect the PCV hose and breather hose to the rocker cover. If necessary, install the oil filler cap and PCV valve and lubricate the PCV valve
O-ring with new engine oil.
5. Install the ignition coils.