Pontiac 12360424 Cylinder Head

Take great care to see that the engine cools completely before you loosen the cylinder head bolts. In case of vehicles with a high mileage and during overhaul of an engine, it is preferable to check camshaft lobe heights before removing the cylinder heads. This will involve relieving fuel pressure, disconnecting the negative battery terminal, and removal of alternator and brackets, intake manifold, exhaust manifold, drivebelt tensioner bracket and power steering pump (if equipped). Also disconnect wires, hoses, fuel and vacuum lines from the cylinder head and label them for reinstallation. Disconnect spark plug wires then remove spark plugs. Take off rocker arm cover-rockers and pushrods. With a new head gasket; outline cylinders as well as bolt pattern on cardboard while loosening each cylinder head mounting bolt 1/4 turn at a time storing in cardboard holder. Carefully lift off the head tapping if it sticks onto a block of wood. Remove the Cylinder Head Gasket. For installation purposes; transfer external parts to the new cylinder head if needed , clean gasket surfaces , ensure clean threads on head bolts and engine block , apply gasket sealant to the new gasket (1987-1989 models)lower the cylinder head onto the engine then install bolts finger tight .Gradually tighten each bolt in 1/4 turn increments in recommended sequence to reach specified torque .While tightening mark each one in order to keep track of sequence used.Complete all remaining installation steps including refilling cooling system and changing oil filter.