The camshafts also should always be carefully examined before their installation, and camshaft end play, before their removal. Starting by removing the cable of the battery with regard to the negative terminal and then removing the valve cover. Get the No. 1 cylinder to TDC and make sure the timing marks of the crank shaft pulley and the cam shaft sprocket are aligned. When the TDC marks are vertically, put some paint on the corresponding link of the
Timing Chain on the upper timing mark on the camshaft sprockets. Inserting a wrench to tighten the camshaft sprockets, the sprocket bolts should be loosened but do not turn. Lose the timing chain tensioner and camshaft position sensor, followed by the removal of the camshaft sprocket bolts, the separation of the timing chain from the camshaft sprockets and the heads as well according to the markings present. Check the designation number on the head and camshaft bearing caps, loosen and remove them in reverse sequence to take out the camshaft(s) by marking it as 'Intake' and 'Exhaust.' Remove the lifters in the same sequence and inspect the camshafts, lifters, and sprockets to see their condition. Ep Assemble the camshaft in the engine, and using a dial indicator check the camshaft end play, in addition to examining the bearing surface for signs of wear. This must be done for all the camshaft bearing journals and their corresponding bearings by taking their outside and inside diameters respectively; compute the oil clearance as well as compare with standard data. Take the highest dimension of each camshaft lobe and also examine their runout with the help of a dial indicator. Check each lifter for wear and then mic the diameters in order to find out the oil clearance. Slide a healthy amount of moly based engine assembly lubricant to the camshaft lobes and journals and then put the camshaft back into the cylinder head with the No.1 cylinder lobes facing inward. Install the bearing caps and bolts on the connecting rod, and tighten them just enough to get a grip and then apply the standard torque sequence. Place the camshaft sprocket teeth on the ticks of the timing chain and ensure all the marks tally, then fasten the bolts on the camshaft sprocket. Replace the timing chain tensioner, and reinstate everything in the order that was dismantled.