LEMON Manuals: Even more car manuals for everyone: 1960-2025
Home >> Lincoln >> 2003 >> Aviator AWD >> Repair and Diagnosis >> Engine Mechanical >> Mechanical >> Engine System-General Information >> General Procedures >> Valve Spring Squareness
April 5, 2026: LEMON Manuals is launched! Read the announcement.

Valve Spring Squareness

  1. Measure the out-of-square on each valve spring.
    • Turn the valve spring and observe the space between the top of the valve spring and the square. Install a new valve spring if out of square. Refer to ENGINE for the procedure.
      Fig 1: Measuring Out-Of-Square On Valve Spring
      G03446483Courtesy of FORD MOTOR CO.
scientia non olet · About LEMON Manuals