Daewoo Musso. Manual — part 114

OM600 ENGINE MECHANICAL 1B3-163

PISTON

Preceding Work : Removal of the cylinder head

Removal of the oil pump

1 Oil Ring
2 2nd Ring
3 Top Ring
4 Snap Ring . . . . . . . . . . . .. Replace
5 Piston Pin
6 Piston
7 Connecting Rod Bushing . . . . . . .. Check

8 Connecting Rod
9 Connecting Rod Upper Bearing Shell

10 Connecting Rod Lower Bearing Shell

11 Connecting Rod Bearing Cap

12 Connecting Rod Bolt . . . . . . . 35Nm + 90°
13 Crankcase
14 Cylinder Bore

Notice

There are two kinds of connecting rods (for machining) and they are different in weight approx. 15g. When replacing
the connecting rod, measure its weight and ensure that a engine has the same weight of connecting rods. If not, there
would be a unbalancing of engine.

1B3-164 OM600 ENGINE MECHANICAL

Service Data

Piston clearance

Piston crown protrusion in TDC position

Connecting rod bushing diameter

Max. 0.12 mm

0.735 - 0.965 mm

26.012 - 26.018 mm

Connecting Rod Bolt Dimensions

Thread

Stretch shaft(C) diameter (new)

Minimum stretch shaft diameter (C)

Length(L)(new)

Tools Required

000 589 04 14 00 Tensioning Strap

001 589 53 21 00 Dial Gauge

363 589 02 21 00 Dial Gauge Holder

M9 x 1

7.4

-0.1

mm

7.1 mm

52

-0.3

mm

OM600 ENGINE MECHANICAL 1B3-165

Removal Procedure

1. Remove combustion residues from the cylinder bores.

2. Remove the connecting rod bolts (12) and then remove

the connecting rod bearing caps(11).

3. Remove the connecting rod bearing shells (9, 10).

Notice

Be careful not mix the bearing caps and shells each other.

4. Remove the piston (6) and connecting rod (8).

5. Remove the snap ring (4) and pull out the piston pin (5).

6. Separate the piston and connecting rod.

1B3-166 OM600 ENGINE MECHANICAL

Installation Procedure

1. Fit the piston onto the connecting rod so that the arrow

(15) and the locking slot (16) are facing in direction of the
vehicle.

2. Coat the piston pin (15) with engine oil and insert it by hand.

Notice

Do not heat up the piston.

3. Install the new snap ring (4) into the grooves (arrow).

4. Check the piston rings (1, 2, 3) and replace them if

necessary.

5. Install and arrange the piston rings to be evenly 120° from

each ends gap.