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Home >> Mini >> 2019 >> Cooper Clubman S ALL4, Standard Trans >> Repair and Diagnosis >> External Pages >> Different car >> Section 110 (Cooper Convertible Technical Data - F57 -- Cooper (F57)) >> Engine Mechanical >> Cylinder Head - Intake And Exhaust Valves >> 11 12 Cylinder Head - intake and exhaust valves

11 12 Cylinder Head - intake and exhaust valves

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B36 ENGINE (COOPER BASE): 

CYLINDER HEAD WITH VALVE SEAT COVER SPECIFICATION

Valve seat angle, both valves ° 45°
Correction angle: Outer, inlet valve ° 35°
Correction angle: Inner, intake valve ° 65°
Correction angle: Outer, exhaust valve ° 35°
Correction angle: Inner, exhaust valve ° 60°
Valve seat width: Intake mm 0.9 ±0.25
Valve seat width: Exhaust mm 1.15 ±0.25
Valve seat    
Valve seat face: Outside dia. inlet mm 28.4
Valve seat face: Outside dia. exhaust mm 27.1

B46 AND B48 ENGINES (COOPER S AND JCW): 

CYLINDER HEAD WITH VALVE SEAT COVER SPECIFICATION

Valve seat angle, both valves ° 45°
Correction angle: Outer, inlet valve ° 35 °
Correction angle: Inner, intake valve ° 60°
Correction angle: Outer, exhaust valve ° 35 °
Correction angle: Inner, exhaust valve ° 60°
Valve seat width: Intake mm 0.9 ±0.2
Valve seat width: Exhaust mm 1.15 ±0.2
Ø Valve seat    
Valve seat surface: Outside dia. inlet mm 28.4
Valve seat surface: Outside dia. exhaust mm 27.1