How to Replace the Timing Belt on a 2012 Focus?

[KateAnn]

Align the timing mark on the camshaft gear with the mark on the valve cover. Install the timing belt in sequence. Rotate the crankshaft clockwise for 2 full turns and check if the timing marks are correctly aligned. Reinstall the alternator and air conditioning compressor belts.

[StColeman]

Replacing the timing belt on a 2012 Ford Focus requires professional tools and experience. First, park the car securely and disconnect the battery, then remove the right front wheel and inner fender to expose the belt cover. The key step is aligning the timing marks on the crankshaft and camshaft, marking them clearly with a pen. Loosen the alternator belt and timing belt tensioner before removing the old belt. When installing the new belt, ensure the rotation direction matches the original, manually turn the crankshaft two full revolutions to recheck the alignment marks—failure to do so may cause timing misalignment and damage the valves. Finally, adjust the tensioner pulley torque to 25 Nm and reassemble all parts in order. The entire process takes about three hours; it's recommended to prepare a torque wrench and work light.

[OJanelle]

DIY timing belt replacement for a 12th-gen Focus really tests your patience. Last time it took me over four hours, with the key being not to mess up the disassembly sequence: first remove the engine undercover and right front wheel, then the crankshaft pulley and timing cover. Aligning the timing marks requires crouching to check the crankshaft locating pin and camshaft VVT wheel markings. When installing the new belt, avoid oil contamination, and the tensioner bolt must be torqued properly with a torque wrench. If the crankshaft binds during manual rotation after reassembly, it means the gear alignment is wrong and you'll have to redo it. I recommend purchasing an OEM timing belt kit in advance - it includes the tensioner and water pump for added convenience.

[DelAvery]

Replacing the timing belt mainly involves three steps: removing accessories, aligning marks, and installing new parts. For the 2012 Focus, the coolant reservoir and alternator need to be removed to access the timing cover. During alignment, the crankshaft locating hole must face upward, and the camshaft VVT wheel notch should be parallel. After removing the old belt, the tensioner will spring back, so remember to secure the tensioner before installing the new belt. Finally, use a caliper to check if the belt tension is between 50-70N. I recommend using Ford's custom locking tool to secure the camshaft to prevent accidental rotation. The entire process requires a lift and lighting equipment, making it too risky for beginners.