Removal of cylinder head cover
1. Remove the 2 NC450 cylinder head covers
from the cylinder head cover and fix them
Bolts (special-shaped M6×29.7), 2 NC450
cylinder head covers are fixed
Bolts (special-shaped M6× 50.7 );
4. Remove the cylinder head cover;
Disassembly of the cylinder head
1. Remove the two M6×20 bolts that fasten
the tensioner,
Then remove the tensioner assembly and the
tensioner gasket;
2. Turn the timing driven sprocket to the
engine timing position:
Arrow mark of timing driven sprocket and
cylinder head timing mark
align;
3. Remove the bolt M6×16 and the flat
washer, and remove the NC
450 pressure reducing valve throw block
combination;
4. Remove 2 bolts M6×10 and take off the
timing driven chain
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