44. Valve Spring Inspection and Measurement

^ Tools Required
- J9566 Valve Spring Tester





1. Measure the valve spring tension. Specifications for the valve spring tension are as follows:
^ Valve Closed: 236 N (53 lbs.) @ 30.3 mm (1.19 inch)
^ Valve Open: 485 N (109 lbs.) @ 20.9 mm (0.823 inch)

Important: DO NOT use shims to increase spring load. The use of shims will cause the valve spring to bottom out before the camshaft lobe is at peak lift.

2. If low valve spring load is found, replace the valve springs.