Assembling Cylinder Head - Doosan V158TI Operation & Maintenance Manual

e) Assembling cylinder head
●
Clean the cylinder head thoroughly.
●
Coat the valve stems and valve guides with engine oil and assemble the valves.
●
Replace the valve stem seals with new ones and insert the stem seals to the valve guides of cylin-
der head with a special tool. (Be careful for the valve stem seals not to be damaged)
●
Install the valve spring washer to valve guide.
●
Put in the valve spring and then attach the valve spring plate on the springs.
Note :
Install the valve spring seat with
"TOP" (Painted in Dual spring -
Yellow / Single spring - red) side up.
●
Pressing the spring down with a spe-
cial tool, assemble by inserting the
valve cotter.
●
After the valve is assembled, inspect
the valve tapping it lightly with an ure-
thane hammer if accurate assem-
bling was done.
- 81 - Disassembly and assembly of major components
Painted portion
(Assemble spring
to the upper side)
EE1OM070
EFM2040I