Before removing the components, reduce the fuel system pressure and then join the cable from the negative terminal of the battery. Empty the cooling system, the
Intake Manifold and the exhaust manifolds from the cylinder heads. Then remove the valve covers, then the rocker arm and push rods together with them, so that they can remain hung in the same sequence when reassembling the automobile. Turn the head bolts by 1/4 turn according to the sequence that is the reverse of the tight sequencing until they reach a situation where they can be backed off; where the head bolts are of different lengths, these should be stored in order. Withdraw the heads gently from the engine with the aid of a block of wood and hammer if needed, and place them on other wooden blocks which are to protect the surfaces of the gasket seals. For installation, before fitting the cylinder heads and block clean the mating surface using gasket removal solvents and scraper if necessary. Rub the surfaces with a damp cloth and lacquer thinner or acetone after that, and it is important to cover the lifter valley with the shop rags in order to prevent debris from getting there. Inspect the mating surfaces for flatness and remove nipples and other high spots using emery cloth in case of minor warping; in case of extreme warping, then machining is required. Follow the threads of the head bolt holes by rubbing and scrapes of corrosion on the bolts should be removed using a die. Place the new gaskets accordingly over the dowels in the block and ensure the lettering is rightly positioned. Put the heads in its proper place ensuring it does not shift the gaskets, apply engine oil on the threads of the head bolts then screw them and tighten them by hand before tightening them to the following pattern for torquing. The remaining Steps are the reverse of Remove Steps. Last but not least put in the coolant, put in the oil and the filter, crank the engine, and check the operation and make sure that there is no leakage.