Mustang GT V8-4.6L SOHC VIN X (1998)
Valve Spring: Testing and Inspection
Squareness
Check each valve spring for squareness using a steel square and a flat surface. Stand the valve spring and square on end of the flat surface. Slide the
valve spring up to the square. Revolve the valve spring slowly and observe the space between the top coil of the valve spring and the square.
NOTE:
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Make sure the proper valve spring (color-coded) is installed.
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Make sure the valve springs are reassembled to their OWN ORIGINAL DAMPERS (if equipped) by pushing damper on the valve spring. DO
NOT OPEN damper with any kind of tool when reassembling.
Follow the same Procedure for new valve springs before installation.
