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Doosan DP222LBF - Cylinder Head; Measurement of Cylinder Liner; Assembly of Cylinder Head

Doosan DP222LBF
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10. Cylinder block/head
154
Cylinder head
Measurement of Cylinder Liner
1. Remove the cotter pin pressing the valve spring by
means of a special tool.
DV2213112A_E
2. Remove out the valve stem seal.
3. Remove the intake valve and the exhaust valve.
4. Remove the valve guide from the cylinder head combus-
tion with the special tool.
DV2213113A
Assembly of Cylinder Head
1. Clean the cylinder head.
2. Apply engine oil on the valve stem and the valve guide,
and then attach the valve.
3. Replace the new valve stem seal and then attach the
stem seal to the valve guide of the cylinder head with the
special tool.
4. Attach the valve spring washer to valve guide.
5. Put in the valve spring and then attach the valve spring
plate on the springs.
EE1OM070-E
6. Attach the valve cotter with the valve spring compress tool.
7. Check if the valve cotters have been positioned correctly
with the plastic hammer after completing attaching them.
DV2213114A
CAUTION
Be careful not to damage the cylinder gasket.
Valve Spring
Compression Tool
CAUTION
Be careful not to damage the valve stem seal.
CAUTION
Install the valve spring seat with “TOP” (painted in Dual
Spring - Yellow / Single Spring - Red) side up.
Painted portion
(Assemble spring
to the upper side)

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