How to Change the Head Gasket on a 1993 Dodge Caravan 3.3 Liter
- 1). Drain the cooling system and disconnect the negative battery cable. Remove the intake manifold and throttle body. Disconnect the coil wires, sending unit wire, heater hoses and by-pass hose. Remove the closed ventilation system, evaporation control system and cylinder head covers.
- 2). Remove the exhaust manifolds. Remove the rocker arm and shaft assemblies. Remove the push rods and identify each one of them to ensure re-installation in the original locations. Remove the nine head bolts from each cylinder head, and remove the cylinder heads.
- 3). Inspect the surface of the cylinder head. Remove the old head gasket. Before cleaning, check for leaks, damage and cracks. Clean the cylinder head and oil passages. Check the cylinder head for flatness. Inspect all surfaces with a straightedge if you suspect leakage. If out of flatness exceeds 0.00075 inches, either replace the head or lightly machine the head surface.
- 4). Clean all debris, coolant and dirt from the engine block cylinder head bolt holes. Failure to remove all foreign material may result in improperly tightened fasteners, damaged threads or damage to components. Install the new head gasket. To re-install all parts, follow the same operation in reverse.
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