Daewoo ST Series Instruções de Operação descarregar pdf (Página 92)

•

Identify the mark “Y” on the piston

ring end to prevent assembling the

bottom of the piston ring is being

interchanged with its top faced

marked “Y”.

Note : Be sure to make the piston ring

end marked face(“Y”) upward.

•

Adjust the angle among individual

piston ring gaps to 90° and fit a piston

assembling jig onto the piston, Use

care not to match the ring gaps with

the piston pin direction.

•

Install the bearing by aligning it with

the connecting rod key groove and

apply oil to the bearing and piston.

•

Make a position the valve seating sur-

face toward the tappet hole and insert

the piston with hand.

Use care not to damage the cylinder

liner and piston, and slightly lift and

insert the piston into the cylinder so

that the ring may not be damaged by

the fillet of the liner.

•

Install the bearing in the connecting

rod cap and apply oil.

•

Make sure that the manufacture serial

number impressed on the connecting

rod cap and the connecting rod big

end is identical, and install the con-

necting rod cap by aligning it with

dowel pin.

•

Wet the fixing bolts with oil, semi-tight-

en them by hand, tighten them to

specified torque using a torque

wrench as follows.

- 89 -

EAMD090I

"Y" marked from piston ring

manulacturing company

EA8M3006

Top ring gap2nd ring gap

Oil ring gap

Piston

Piston pin

45

O

45

O

90

O

(0.30~0.45mm)

(0.30~0.50mm)

(0.35~0.50mm)

EAMD092I

Tappet hole

Valve seating

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