Daewoo Musso. Manual — part 38
1B1-88 M162 ENGINE MECHANICAL
CONNECTING ROD
Preceding Work : Removal of piston
1 Connecting Rod Bushing
2 Oil Gallery
3 Balance Weight
4 Connecting Rod Bolt
(M9 x 52, 12 m pieces) .. 1st step 40+5 Nm
2nd step 90°+10°
5 Fit Sleeve
6 Upper Connecting Rod Bearing
7 Lower Connecting Rod Bearing
8 BearingShell Lug
9 Marking [Indication(//) or Numbers]
Service Data Standard
Distance (L) from The Connecting Rod Bearing Bore Center to The Bushing Bore Center
Width of The Connecting Rod (B) at Bearing Bore
Width of The Connecting Rod (b) at Bushing Bore
Basic Bore at The Bearing Shell (D1)
Basic Bore at The Bushing (d1)
Bushing Inner Diameter (d)
Clearance Between The Piston Pin and The Bushing
Peak-to-valley Height of Connecting Rod Bushing on Inside
Permissible Wwist of Connecting Rod Bearing Bore to Connecting Rod Bushing Bore
Permissible Deviation of Axial Paralleism of Connecting Rod Bearing Bore to Connecting
Rod Bushing Core
Permissible Deviation of Connecting Rod Bearing Bore from Concentricity
Permissible Difference of Each Connecting Rod in Weight
145 ± 0.05 mm
21.940 - 22.000 mm
21.940 - 22.000 mm
51.600 - 51.614 mm
24.500 - 24.571 mm
22.007 - 22.013 mm
0.007 - 0.018 mm
0.005 mm
0.15 mm
0.07 mm
0.01 mm
0.4 g
M162 ENGINE MECHANICAL 1B1-89
Inspection
1. Measure the basic bore of the connecting rod bearing.
Notice
If the basic bore exceeds the value of 51.614mm, replace
the bearing or check the connecting rod.
2. Check connecting rod bolts.
3. Check the assembly mark(indication//or number:arrow) of
the connecting rods and the bearing cap when installing.
Notice
l
Make sure it doesn’t exceed over 4g with other
connecting rods when replacing the connecting rods.
l
Check if the connecting rod and the bearing cap are
accurately seated on the groove when replacing the
bearing.
Notice
If the length exceeds max. length, replace it.
Length When New (L)
Max. Length (L)
Tightening Torque
51.7 - 52 mm
52.9 mm
1st step 40 + 5 Nm
2nd step 90°+10°
1B1-90 M162 ENGINE MECHANICAL
PISTON RING
Preceding Work : Removal of piston
1 Piston Compression Ring
2 Piston Compression Ring
3 Piston Oil Ring
4 -
5 Coil Spring and Control Ring
6 Hook Spring
Notice
If out of specification, replace the piston ring.
Tools Required
000 589 51 37 00 Clamping Strap
Replacement Procedure
1. Measure the piston ring’s gap.
Gap Between
The Piston and
The Piston Ring
Groove 1 0.20 - 0.40 mm
Groove 2 0.20 - 0.40 mm
Groove 3 0.20 - 0.45 mm
Groove 1 0.015 - 0.050 mm
Groove 2 0.020 - 0.040 mm
Groove 3 0.010 - 0.045 mm
End Gap of The
Piston Ring
M162 ENGINE MECHANICAL 1B1-91
2. Remove the piston ring with a pliers.
3. For installation, position the piston ring to be the ‘TOP’ mark
on the piston ring upward and arrange the piston ring ends
to be 120° apart.
4. Adjust the hook spring joint in the oil ring 180° away from
the ring end.
Clamping Strap 000 589 51 37 00
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