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Valve gear

Valve gear



1. Exhaust valve




1. Inlet valve


Important

The exhaust valves are stellited and should therefore not be machined. Grinding with valve-grinding (lapping) paste is the only recommended method.


Valve guides

Length

mm

42.5

Outside diameter

mm

12.039 - 12.050

Bore for valve guides

mm

12.000 - 12.018

Maximum clearance between valve stem and valve guide

mm

0.50 (Measured on valve head raised 3 mm above seat.)



Valve springs


Length,

fitted

mm

37.0



free

mm

44.0 - 47.0



when subjected to compressive force of 620 - 670 N

(138 - 150 lbf)

mm

28.4



Cam followers

Diameter

mm

32.959 - 32.975

Height

mm

26.0

Bore for cam followers

mm

33.000 - 33.016