Fig. 4 - Tappet assembly.
Fig. 6 - Clearance between valves and rockers.
Fig. 8 - Main valve spring dimensions.
Fig. 5 - Cylinder head cross-section.
Fig. 7 - Valve recess from the cylinder head gasket bearing face.
engine
cylinder head
Ø machining Ø max. wear
Valve springs
a inside diameter mm 27.7
b free spring length mm 53.6
c loaded spring length
kg 15.85±5% mm 42
kg 19.60±5% mm 39.6
rocker arm bushing inside diameter
(see fig. 10 on page 47) mm 19
+ 0.025
+ 0.015
19.060
rocker arm pin diameter
(see fig. 10 on page 47) mm 19
− 0.011
0
18.980
clearance adjustment between
valve and rocker arm (cold) mm 0.20
14
1
46
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