VALVE GROUP (overflow) 7V1663 - Caterpillar

1. Loosen clamps (2), and slide the hose off breather cap (3). Remove bolt (1), the breather cap and O-ring seal from valve cover (5).2. Remove pipe (4) between the turbocharger and aftercooler.3. Put an alignment mark on the turbocharger housing and cartridge to show their angle relationship to each other for assembly purposes.4. Loosen clamps (6) and (8). Rotate turbocharger housing (7) so that the opening for pipe (4) is in a vertical position.5. Remove the bolts that hold the valve cover in position, and remove valve cover (5). If necessary, remove the gasket from the valve cover.Install Valve Cover (3306)
1. Install a new gasket on the valve cover if needed. Put 5H2471 Cement on the contact surfaces of the valve cover and gasket when a new gasket is installed. 2. Put the valve cover in position on the cylinder head, and install the bolts that hold it. Tighten the bolts in the numbered sequence shown to a torque of 11 3 N m (8 2 lb ft). 3. Rotate turbocharger housing (1) to its original position, and tighten clamps (2). Tighten the clamps to a torque of 14 3 N m (10 2 lb ft). 4. Put the gasket and pipe (4) in position, and install the bolts that hold them.5. Put O-ring seal (6) and breather cap (5) in position. Install bolt (3), and tighten it to a torque of 14 3 N m (10 2 lb ft).6. Slide the hose into position on the breather cap, and tighten the clamp that holds it.