Pic. 2.150. Valve Spring Height Check
Apply a compressive force to the spring and check the height of the spring (pic. 2.150).
If the height is not correct, replace the valve spring.
- Downforce: 494.9 N.
- Standard height: 27.80 mm.
Pic. 1.151. Turning the sub ignition key | 
Pic. 2.151. Measuring valve spring misalignment |
Measure the non-perpendicularity of the valve spring using a corner, as shown in Figure 2.151.
Rotate the valve spring 360°to measure the greatest distance «A».
If the misalignment is not correct, replace the valve spring.
Maximum valve spring misalignment: 1% (2.10 mm).