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VALVE SPRING SQUARENESS Infiniti M45 III

Engine Mechanical - VK45DE 3 illustrations ~139 words

VALVE SPRING SQUARENESS

  1. Set try square along the side of valve spring and rotate spring. Measure the maximum clearance between the top face of spring and try square. Limit: 2.0 mm (0.079 in)
  2. If it exceeds the limit, replace valve spring.

Scheme 224

Scheme 224
Scheme 224

Scheme 225

Scheme 225: VALVE SPRING DIMENSIONS AND VALVE SPRING PRESSURE LOAD
Scheme 225: VALVE SPRING DIMENSIONS AND VALVE SPRING PRESSURE LOAD
  1. Check valve spring pressure at the specified spring height. Standard: Intake and exhaust Free height : 46.35 - 46.85 mm (1.8247 - 1.8444 in) Installation height : 33.8 mm (1.331 in) Installation load : 165 - 189 N (16.8 - 19.3 kg, 37 - 42 lb) Height during valve open : 24.4 mm (0.961 in) Load with valve open : 290 - 330 N (29.6 - 33.7 kg, 65 - 74 lb)
  2. If the installation load or load with valve open is out of the standard, replace valve spring.

Scheme 226

Scheme 226: Components
Scheme 226: Components