Cylinder Head Reassembly - DAELIM ET-250 Service Manual

After the valve seat ground, coat valve seat surface
with emery and then slightly press the ground
surface.
Clean up all emery coated onto cylinder and valve
after ground.

6-8 Cylinder Head Reassembly

Lubricate valve stem with engine oil, and then
insert the valve into valve guide.
Install new valve stem oil seal.
Install valve springs and retainers.
Caution
The closed coils of valve spring should face down
to combustion chamber.
Use a valve cotter remove & assembly tool to press
the valve spring, and then remove valves.
Caution
In order to avoid damaging the valve stem and the
cylinder head, in the combustion chamber place a
rag between the valve spring remover/installer as
compressing the valve spring directly.
Special Service Tool:
Valve cotter remove & assembly tool
Tap the valve stems gently with a plastic hammer to
make sure valve retainer and valve cotter is settled.
Caution
Place and hold cylinder head on to working table
so that can prevent from valve damaged.
Valve spring retaine r
Valve cotter
Valve spring
Exhaust valve
Valve cotter remove
and assembly tool
Valve stem seal
Inlet valve