1998 SSANGYONG MUSSO check engine

1B2-76 M161 ENGINE MECHANICAL
VALVE STEM SEAL
Preceding Work : Removal of valve spring
1 Drift (Special Tool)
2 Valve Stem Seal
3 Protective Sleeve
Drift 119 589 00 43 00 Pliers 104 589 00 37 00
Tools Required
104 589 00 37 00 Pliers
119 589 00 43 00 Drift
Replacement Procedure
1. Remove the valve stem seal (2) using the pliers.
Notice
Check the valve stem seal for damage and replace if
necessary.
2. Coat the valve stem seal with oil and assemble it with the
protective sleeve.
3. Insert the valve stem seal by pressing it with the drift.

M161 ENGINE MECHANICAL 1B2-77
CHAIN TENSIONER
1 Screw Plug................................................ 40 Nm
2 Seal
3 Filler Pin
4 Compression Spring5 Snap Ring
6 Thrust Pin
7 Chain Tensioner Housing.....................72-88 Nm
8 Seal
Removal Procedure
1. Position the number 1 cylinder to ATDC 20°.
Notice
Remove the oil filler cap at adjustment position, and check
whether the intake camshaft cam’s lobe (arrow) stays in the
upper side.
2. Cover the alternator with a clean cloth.
3. Release the tension by unscrewing the screw plug once.
Notice
In case that the tension is reduced by unscrewing the screw
plug, reinstall after completely removing the chain tensioner.
If the chain tensioner is tightened again without completely
reducing its tension, then the snap ring doesn’t return to
the original position and the tension gets excedded.

M161 ENGINE MECHANICAL 1B2-79
4. Lightly apply the grease to the seal (2) and install the screw
plug (1).
Installation Notice
Sectional View
1 Screw Plug
2 Ball (Nonreturn Valve)
3 Compression Spring
4 Ball Guide
5 Seal (Aluminum)
6 Filler Pin
7 Compression Spring
8 Snap Ring
9 Thrust Pin
10 Ball (Nonreturn Valve)
11 Compression Spring
12 Thrust Piece13 Chain Tensioner Housing
1 4 Seal
15 Timing Gear Case Cover
16 Cylinder Head
17 Bolt / Washer
18 Tensioning Rail
19 Cylinder Head Gasket
20 Timing Chain
21 Tensioning Rail Base (Sliding Surface)
A Oil Supply Hole
B Chain Tensioner Oil Storage Hole 5. Check for leaks by operating the engine.
Tightening Torque 40 Nm

1B2-84 M161 ENGINE MECHANICAL
17. Rivet the link pin.
Check the condition and it again if necessary.
18. Install the chain tensioner.
Installation Notice
19. Check the camshaft timing position.Tightening TorqueScrew Plug
40 Nm
Tensioner Assembly
72 - 88 Nm

1B2-92 M161 ENGINE MECHANICAL
1. Check the piston ring gap and apply the engine oil to the
piston pin and the connecting rod bushing.
2. Connect the piston and the connecting rod by pressing in
the piston pin (6) and install the snap ring to the groove.
3. Clean the cylinder bore, connecting rod bearing journal,
connecting rod bearing shell and the piston and coat them
with engine oil.
4. Install the piston ring using the tensioning strap(000 589
04 14 00).
5. Install the piston so that the arrow on the piston head faces
to the forward of the vehicle.
6. After aligning the connecting rod and the bearing cap mark
(// or a number), tighten the bolts.
Installation Notice
Tightening Torque1st step 35 - 45 Nm
2nd step90°+5°
Apply the engine oil to the bearing cap upper and lower
bearing shells.
7. Check if the crankshaft rotates without any trouble by rotating
it.

1B2-94 M161 ENGINE MECHANICAL
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
lMake sure it doesn’t exceed over 4g with other
connecting rods when replacing the connecting rods.
lCheck 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 Torque51.7 - 52 mm
52.9 mm
1st step 40 + 5 Nm
2nd step 90°+10°

M161 ENGINE MECHANICAL 1B2-97
OIL PAN
1 Bolt
2 Bolt
3 Bolt
4 Bolt
1. Remove the drain plug and drain the oil completely.
2. Unscrew the bolts and remove the oil pan and gasket.
Notice
Arrange the bolts according to each size.
3. Clean the inside of oil pan and sealing surface, then apply
the sealant.
4. Replace the gasket with new one.
5. Install the oil pan with gasket, and tighten each bolt in
specified torque.
6. Check for oil leaks while running the engine.
M8 X 40, 4 pieces
M6 X 35, 1 pieces
M6 X 100, 2 piece
M6 X 85, 3 pieces
M6 X 20, 20 pieces
5 Bolt
6 Oil Pan
7 Gasket
u

1B2-100 M161 ENGINE MECHANICAL
9. Fill up engine oil through the engine oil filler opening.
10. Check for oil leaks at normal engine temperature after
starting the engine.
11. Stop the engine and wait 5 minutes.
Check the oil level and fill up as specified if necessary. 4. Remove the drain plug (1) and drain the engine oil.
Notice
Leave the oil filler cap (3) open to ease the engine oil
discharge.
5. Tighten the engine oil drain plug after cleaning it.
Installation Notice Tools Required
103 589 02 09 00 Oil Filter Socket Wrench
Replacement Procedure
1. Install the socket wrench”7” (special tool : 103 589 02 09
00) on the oil filter cover (2).
Notice
Make the screw cover removable by tightening the bolt at
the side of the socket wrench (special tool).
2. Install the wrench to the upper bolt in the socket wrench
and remove the oil cover by turning it.
3. Remove the oil filter element.
Notice
Work with a cloth under the vehicle when removing the oil
filter element to not drain the oil.
Replace the seal washer with new one.
6. Replace the O-ring(5) in the oil filter cover with new one.
Notice
Apply the engine oil to the O-ring.
7. Insert new oil filter element into the oil filter housing.
Tightening Torque 25 Nm
8. Temporarily tighten the oil filter cover (2). Install the socket
wrench “7” (special tool : 103 589 02 09 00), and then
completely tighten it.
Installation Notice
2 Oil Filter Cover
5 O-ring
6 Oil Filter Element
7 Special Tool (Socket Wrench)
Tightening Torque 25 Nm