M45 V8-4.5L (VK45DE) (2006)
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Check valve spring pressure at the specified spring height.
Standard:
Intake and exhaust
Free height: 46.35 - 46.85 mm (1.8247 - 1.8444 inch)
Installation height: 33.8 mm (1.331 inch)
Installation load: 165 - 189 N (16.8 - 19.3 kg, 37 - 42 lb)
Height during valve open: 24.4 mm (0.961 inch)
Load with valve open: 290 - 330 N (29.6 - 33.7 kg, 65 - 74 lb)
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If the installation load or load with valve open is out of the standard, replace valve spring.
Valve Spring
Valve Spring