Cylinder head and valve mechanisms
46
5. Turn all bolts again for further 85°～95°as per the provision in the 4
th
step and tighten the
bolt.
Assembly instructions of camshaft
Caution
l As the mounting clearance of camshaft is very small, it must be assured that the
journal of camshaft is tightly stuck in the bearing seat during installation;
otherwise it will be damaged due to the excessive pressure on the contact
surface between the shaft and bearing. To avoid such case, the following
practice shall be observed.
1. Contain the camshaft into the cylinder head, by stucking the camshaft journal tightly in the
bearing seat.
2. Smear a little oil on the camshaft journal and bearing seat.
3. Fit all camshaft bearing caps on the journals to which they correspond respectively
4. Tighten with hand, the camshaft bolts marked in the Figure with the numbers 5, 7, 2 and 4.
5. Tighten the camshaft cap bolt in 2-3 steps in the order shown in the Fig.
6. Smear clean oil on the insertion part of camshaft assembly.
Assembly instructions of VVT
1. Turn the camshaft, keeping the positioning pin facing upward
2. Smear a little oil all around the insertion part of VVT assembly and align the VVT assembly
positioning hole with the camshaft positioning pin. Then set in slowly the VVT assembly.
Position of paint mark after the 5
step
Position of paint
mark after the 4
th
step
Initial paint mark
To Next Page
Loading...