Chrysler Front Wheel Drive Cars 4-CYL 1981-1995 Repair Information

Valve Springs

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REMOVAL & INSTALLATION



The valve springs are removed and installed as described under the Valve Stem Seal Removal and Installation procedures. Please refer to those procedures.

INSPECTION



See Figure 1



Click image to see an enlarged view

Fig. Fig. 1: Check the valve spring for squareness on a flat surface; a carpenter's square can be used

  1. Place the valve spring on a flat surface next to a carpenter's square. Measure the height of the spring, and rotate the spring against the edge of the square to measure distortion. If the spring height varies (by comparison) by more than 1 / 16 in. (1.6mm) or if the distortion exceeds 1 / 16 in. (1.6mm), replace the spring.
  2.  
  3. Test the valve springs for correct spring pressure at the installed and compressed (installed height minus valve lift) height using a valve spring tester. Springs should be within one pound, plus or minus, of each other. Replace springs if they do not meet the specifications shown in either the Valve Specification or Engine Rebuilding SPECIFICATION CHARTS.
  4.  

Valve Spring Installed Height

See Figure 2

Click image to see an enlarged view

Fig. Fig. 2: After the valve springs are installed, check the spring height-add washers under the spring to bring the height down to specification

After installing the valve spring, measure the distance between the spring mounting pad and the lower edge of the spring retainer. Compare the measurement to the specifications shown in either the Valve Specification or Engine Rebuilding SPECIFICATION CHARTS. If the installed height is not within specification, add shim washers between the spring mounting pad and the spring. Use only washers designed for valve springs.