DE08TS Diesel Engines Maintenance
Cylinder head
1. Remove the cylinder head bolts in the reverse
order of tightening but remove it step by step.
First step : Loosen 1 ~ 2 threads
Second step : Remove by loosening fully.
However, remove the total bolts simultaneously by
the step of 1 and 2.
2. Lay the removed bolts orderly not to damage the
threads at all and store.
Prevent a collision between the bolt thread each
other.
3. Take out the cylinder head gasket and scrap it.
4. Remove the foreign residues from the cylinder
head surface and block surface.
Try not to make any damage on the contact sur-
faces.
• Disassembly of cylinder head
a. Place the cylinder head on a individual shelf.
b. As pressing the valve spring with a special tool,
remove the cotter pin, valve spring.
c. Take out the intake and exhaust valves.
d. For removal of the valve seat, apply arc welding
work to two points of valve seat insert, and pull
out the valve seat insert with inner extractor.
Oil pan
1. Unscrew the oil pan fixing bolts and remove the oil
pan.
2. Remove the oil pan gasket and discard it.
EA3M2032
Valve seat
insert
Welding bead
Cylinder head
밸브 스프링
압축공구
EA0M4007
WARNING
WARNING
EAMD102I
32
Compress
the spring
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