Mercury F7CZ-6268-AA Belt - Timing

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The timing system is rather intricate, and major engine harm can result from mistakes at this procedure; therefore, only skillful personnel should undertake it. Start, if possible, with the removal of the negative battery cable, then ensuring that the car is raised on jackstands safely, and the right front tire removed. Then remove the accessory drivebelt and drivebelt tensioner and then the power steering pump reservoir and the coolant expansion tank. It may require the removal of the timing belt cover, for which the engine mount support may also have to be taken off. Realign the engine by clockwise, until you see the timing marks on the camshaft and crankshaft pulleys lined up. Turn the tensioner bolt counterclockwise a little, push the tensioner away from the belt and install the bolt and nut. Less the spark plugs, place the rear wheels and cover the front wheels then use the jack to lift the front end and take out the splash shield. A crankshaft should be gripped with a chain or strap wrench when the crankshaft damper bolt and the crankshaft manual has been unscrewed and removed together with the damper, and timing belt also withdrawn. Whenever putting on a new belt make sure that it is of the same type as the first one and when checking the belts also check the water pump. To identify problems when the engine is off, turn the crankshaft two times clockwise prior to turning the ignition switch. Ensure that the timing marks are lined up, then place the new belt counterclockwise round the pulleys ensuring it is taut and then the tensioner will lock into position. Replace the crankshaft damper and its bolt, then turn the crankshaft back and forth in order to check the alignment of the timing marks is not affected. Fasten the tensioner bolt and fully assemble by performing the operational instructions in the reverse method of the removal process.

The tensioner must not be installed until after the belt is fully positioned. Hook the tensioner into the timing belt inner shield, insert the bolt loosely, and then set the tension.