B2300 Regular Cab 2WD L4-2.3L VIN A (1997)
Valve Spring: Testing and Inspection
1. Inspect the valve spring, valve spring retainers and keys, for wear or damage. Discard any damaged parts.
2. Check the springs (separated from dampers) for proper pressure at the specified spring lengths. Follow the instructions of the spring tester
manufacturer. Replace any spring not within specification.
Pressure/length: 57-63 lbs. at 39.6 mm (1.56 in)
3. Check the valve spring free length.
Free length: 51.3 mm (2.02 in) (approximate)
4. Check the out-of-square of the valve spring.
Out-of-square limit: 1.98 mm (0.078 in)
CAUTION: Make sure the springs are reassembled to their original dampers by pushing the damper onto the spring. Do not open the damper,
with any kind of tool, in order to reassemble.
