Unplug the battery negative cable and then take out the radiator, intake manifold and distributor assembly before eliminating the camshaft. After that, let the alloy cylinder head covers, rocker arms, push rods and tappets drop, remembering to mark each part so it is easier to reinstall them. Lift the timing cover, match the marks and remove the chain and its sprockets. Block the tensioner to mounting bolts along with the tensioner itself by removing the three nuts. Get a long bolt and attach it to the front of the camshaft, so you don't damage the cam bearings when removing the camshaft. Do not insert the ran belt just now; after applying lubrication, put the camshaft into the engine block up to 51 mms from the final position. Connect Camshaft Gear Installer Tool C-3509 by laying its tongue against the distributor drive gear and hold it with distributor lockplate bolt to limit the movement of the camshaft. Put in the timing chain tensioner and secure it with bubs tightened to 24 Nm. Apply pressure to the tensioner shoe and push a pin through it to help when you install the chain. Bring the timing marks on both sprockets in line, set the chain around them and move the crankshaft and camshaft until the keyways are aligned. Lift the sprockets and chain together, making sure they stay properly aligned, put the sprockets onto the shafts and use a straightedge to check the timing marks. Next, put in the camshaft bolt and cup washer and turn the bolt to 68 Nm. Check the camshaft end play; if it's not as stated, change the timing chain tensioner. Set up each tappet as you found them and replace all the tappets if you need to replace the camshaft. After all that, add the timing chain cover, intake manifold and distributor and end by fitting the cylinder head covers and radiator. Put more coolant into the system, reattach the battery's negative cable and start the car to watch for any leaks.