Genuine 1993 Ford Explorer Cylinder Head

1993 Ford Explorer Cylinder Head Parts Questions & Experts Answers

• Q: How to remove and install Cylinder Head in 4.0L pushrod V6 engine on 1993 Ford Explorer?

  A: In order to remove the head bolts, use of a Torx bit is recommended as use of Allen wrench may lead into rounding up the bolt head. This should be done by removing the negative terminal of the battery and, then bleed the cooling system. What follows shall be the withdrawal of the valve covers, rocker arms, push rods, intake manifold, and the drive belt. If this has not yet been accomplished, loosen the air conditioning compressor from the engine while leaving the refrigerant lines connected and then take off the compressor mounting bracket on 1997 and after models. Remove the power steering pump and bracket without removing the hoses and then untape or cut the wiring harness at the back of head where it has been encased with a plastic retainer. Move to the exhaust collecting manifolds to eliminate them then go to uninstall the alternator of the ignition coil pack and the spark plugs. The cylinder head bolts need to be removed and discarded using a T55 Torx bit, new bolts have to be bought and the bolt has to be done in stages before lifting the cylinder head off the engine and if needed prying it. For installation the removal of all traces of the gasket material is necessary, all parts should be cleaned with solvent then using a tap to clean up the threads in the cylinder head bolt holes. Ensure all bolt holes and cylinder bores are free from any foreign material and place the gaskets over dowel pin with out any sealant such that the FRONT top is correctly aligned. Place the cylinder heads and new bolts with an intention of tightening them with hands at first. Spray the sealer and put the intake manifold in place and fasten the manifold bolts/nuts by hand. When tightening it is advised to tighten the cylinder head bolts in a sequence then the intake manifold bolts until the maximum recommended torque is achieved to ensure that the parts are properly aligned and that the gasket does not fail. The rest of the installation is the mirror image of the removal and the final step is to floor it to ensure all the oil, coolant and vacuum leaks are present.