Ford EJ7Z-6505-A Exhaust Valve

First, pull the battery cable away from the negative terminal; remove all of the spark plugs and the valve cover. Some of the challenges are Loosen the right front wheel lug nuts-lift the front of the vehicle-support the vehicle secured on jack stands-remove the right front wheel and the fender splash shield. On another engine, with a wrench or socket on the crankshaft pulley bolt, turn the crankshaft clockwise and check each lifter when its camshaft lobe is directly vertical, it's preferred that the distance is between cam base circle and top of the lifter. The correct clearances are obtained by the use of feeler gauges with a very slight drag being felt when sliding the gauge between the lifter and camshaft. A measurement check should be carried between the clearance of each of the camshaft lobe with the appropriate lifter and document all the readings. In the event that any of the anterior mentioned clearances prove to be out of standard, both the camshafts and lifters that are out of spec must be withdrawn. New lifters are available in various thicknesses, it is stamped with a thickness number; only the numbers after the decimal point are important. To decide the lifters' thickness for a new set, sum together the thickness of an original lifter and the measured clearance, and then subtract the midrange figure for the ideal clearance to arrive at the proper thickness of the lifter to order, choosing the closest available thickness. After the camshafts and timing chain have been fitted, it is essential to again inspect the valve clearances; after that, the work is done in reverse order. Last but not least of the oil change procedures is to start the engine and inspect it for oil loss.