nissan Workshop Repair Guides

Nissan and Datsun Workshop Service and Repair Manuals

Valve, Intake/Exhaust > < Mechanical Specifications
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Valve Spring: Pressure, Vacuum and Temperature Specifications

Valve Spring 

Pressure standard N (kg-force, lo-force) at height mm (in)

Intake (blue) and Exhaust (yellow)  ...........................................................................................................  175 (15.4 - 17.8, 34 - 39) at 35.30 (1.390)

Load with valve open N (kg-force, lb-force)

Intake (blue)  ...............................................................................................................................................................  358 - 408 (36.5 - 41.6, 80 - 92)
Exhaust (yellow)  ........................................................................................................................................................  325 - 371 (33.1 - 37.8, 73 - 83)

Valve, Intake/Exhaust > < Mechanical Specifications