1998 SSANGYONG MUSSO check engine

M161 ENGINE MECHANICAL 1B2-53
CRANKSHAFT REAR RADIAL SEAL
Preceding Work : Removal of flywheel or drive plate
1 Special Tool
2 Special Tool3 Crankshaft Rear Seal
Tools Required
601 589 03 43 00 Sleeve
Replacement Proceudre
1. Remove the radial seal with a screw driver.
Notice
Use a clean cloth not to damage the radial seal mounting
hole and the crankshaft.
2. Install the special tool (2) to the crankshaft.
3. Apply the engine oil on the special tool (2).
Notice
Do not use the grease.
4. Install the radial seal on the inner parts assembler.
5. Press in the special tool (1) until the radial seal is stopped.
6. Check for leaks while operating the engine.

M161 ENGINE MECHANICAL 1B2-57
Installation Notice
lMake sure the crankshaft bearing cap properly seated
in place in the crankcase side. When perfectly
installed, the projected part (arrow) locates in the left
side (intake manifold side).
lAssemble so that the projected part of the cap and
crankcase face the same direction.
Removal & Installation Procedure
1. Unscrew the connecting rod bearing cap bolt and remove
the bearing cap.
Installation Notice
2. Unscrew the crankshaft bearing cap bolts and separate
the upper and lower bearing shells and thrust washers.
Installation Notice
lRemove the bearing cap from front (pulley side) to
rear.
lMake sure that the upper and lower bearing shells do
not change each other and coat with engine oil.
lThe oil grooves (arrows) in the thrust washers must
face outward and insert the thrust bearing into the
bearing cap.
lThere are five kinds of thrust washers by thickness.
Select the proper washer when repaired.
3. Remove the crankshaft.
4. Installation should follow the removal procedure in the
reverse order.
5. After completion of the installation, check for the rotating
condition of the crankshaft.
lMake sure that the upper and lower bearing shells do
not change each other.
lCoat the bearing shell with engine oil.
lInstall the bearing cap according to the consecutive
number.
Part No. : 601 030 00 622.15 mm
Part No. : 601 030 01 622.20 mm
Part No. : 601 030 02 622.25 mm
Part No. : 601 030 03 622.30 mm
Part No. : 601 030 04 622.40 mm
Tightening Torque 40 Nm + 90°
Tightening Torque 55 Nm + 90°

1B2-64 M161 ENGINE MECHANICAL
7. Unscrew the bolt (3) from the armature (4) and remove
the roll pin, and remove the armature.
Installation Notice
Tightening Torque 35 Nm
8. Unscrew the nut (6) and remove the seal cover (7).
Installation Notice
Tightening Torque 60 - 70 Nm
Notice
Put the locking slot of nut toward armarture.
9. Take off the timing chain from intake camshaft sprocket.
10. Remove the cover (7), adjuster piston (9) and conical
spring (10) from intake camshaft sprocket.
11. Unscrew the bolt (11) and remove the flange shaft.
Installation Notice
Tightening Torque1st step 20 Nm
2nd step + 95°
Notice
The flange bolt is designed to be used only once, so always
replace with new one.
12. Installation should follow the removal procedure in the
reverse order.
13. Check and adjust the camshaft timing.

1B2-68 M161 ENGINE MECHANICAL
7. Remove the bearing cap, and remove the intake and the
exhaust camshaft.
Installation Notice
Tightening Torque 22.5 - 27.5 Nm
Notice
Check the numbers on the bearing cap not to be miked
up.
8. Apply the engine oil on the valve tappet and camshaft
bearing.
9. Installation should follow the removal procedure in the
reverse order.
Notice
lBase circle of cam should cantact with the valve tappet.
lInstall the camshaft bearing caps according to the
numbers on the cylinder head cast and bearing cap.
10. Check the camshaft timing position.

1B2-70 M161 ENGINE MECHANICAL
Tools Required
104 589 01 01 00 Spanner
111 589 03 15 00 Insert Pin
Inspection Procedure
1. Position the NO.1 cylinder piston to ATDC 20° by turning
the crankshaft
Notice
When the ATDC 20° mark on vibration damper is aligned
with timing gear case cover, the intake and exhaust cam of
cylinder will make the slope to the center and will face up.
In this way, the insert hole in NO.1 and NO.4 camshaft
bearing cap will match in line with the flange hole for
camshaft sprocket.
2. Check the timing as below procedure;
- Check if the insert pin (111 589 03 15 00) can be inserted
into the NO.1 and NO.4 bearing cap hole.
- At this condition, check if the ATDC 20° mark on vibration
damper aligns with the marker on the timing gear case.

M161 ENGINE MECHANICAL 1B2-71
Adjustment Procedure
1. Position the NO.1 cylinder to ATDC 20° .
2. Remove the chain tensioner.
3. Remove the exhaust camshaft sprocket.
4. Adjust the timing position with inserting the insert pin
(
f6.5mm, 111 589 03 15 00) into the NO.1 and NO.4
camshaft bearing cap hole and flange hole while rotating
the camshaft by using wrench (104 589 01 01 00).
5. Install the chain to the intake camshaft sprocket.
6. Install the chain to the exhaust camshaft sprocket and
tighten the bolt.
Installation Notice
Tightening Torque1st step 20 Nm
2nd step + 90°
The sprocket bolt is designed to be used only once, so
replace with new one.
7. Install the chain tensioner.
Installation Notice
Screw plug
Tensioner assembly40 Nm
80 ± 8 Nm Tightening
Torque
8. Check the camshaft timing.

1B2-72 M161 ENGINE MECHANICAL
VALVE SPRING
Preceding Work : Removal of camshaft
Removal of spark plug
1 Valve Tappet Assembly
2 Valve Cotter
3 Upper Retainer
4 Valve Spring..........Check, Replace if necessary
5 Valve Stem Seal
6 Lower Retainer7 Connecting Hose
8 Thrust Piece
9 Slide
10 Adjust Bolt
11 Lever Pusher
12 Supporting Bar

1B2-74 M161 ENGINE MECHANICAL
8. Install the lever pusher (11) and the thrust piece (8) to the
slide (9).
13. Remove the valve cotter (2) using either the pincette (13)
or magnetic finger.
Lever Pusher 111 589 18 61 00
Magnetic Finger 116 589 06 63 00
9. Mount the thrust piece (8) vertically to the valve spring
retainer (3).
10. Make the thrust piece (8) and the slide (9) perpendicular
to each other.
11. Secure the slide (9) by turning the adjust bolt (10).
12. Press the valve spring (4) by using the lever pusher (11).
14. Remove the upper retainer (3) and the valve spring (4).
15. Remove the valve stem seal and replace if necessary.
Notice
Check the valve stem seal and replace if necessary.
16. Remove the lower retainer (6).
Notice
Check the retainer for damages and replace with a new
one if necessary.
17. Installation should follow the removal procedure in the
reverse order.