Genuine 2008 Ford Focus Cylinder Head

2008 Ford Focus Cylinder Head Parts Questions & Experts Answers

• Q:

  How should the cylinder head be prepared and reassembled with the new valve components on 2008 Ford Focus?

  Posted by Hays C.

  A:

  Regardless of whether the head was sent away for repair work, ensure it is clean before reassembly by removing any metal particles and abrasive grit from operations like valve grinding or head resurfacing. Use compressed air to blow out all oil holes and passages, while wearing safety goggles. Lubricate the new valve stem oil seals and install them into the cylinder head, pressing them in squarely with a deep socket; note that intake and exhaust seals are typically different colors-green for intake valves and red for exhaust valves. Starting at one end of the head, lubricate and install the first valve using moly-based grease or clean engine oil on the valve stem, ensuring original valves are placed in their original guides or new valves are inserted into their ground locations. Install the valve spring and retainer, then compress the spring with a valve spring compressor and carefully install the keepers in the stem groove, using grease to hold them in place if necessary. Slowly release the compressor and ensure the keepers seat properly. After installing the valve, place the cylinder head flat on the bench and gently tap the end of the valve stem with a hammer and block of wood to settle the components. Repeat the procedure for the remaining valves, ensuring all components are returned to their original locations. Finally, install the cam followers and camshaft(s).

  Answered by Ford Parts Specialist Ley / Oct 25, 2022