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Engine Disassembly

In document Daewoo p180leom (Page 71-80)

9. DISASSEMBLY AND REASSEMBLY OF MAJOR COMPONENTS

9.1. Engine Disassembly

Engine parts’ disassembly procedures are as follows;

9.1.1. Oil Level Gauge

Take out the oil level gauge.

9.1.2. Engine Oil

Remove an oil drain cock from the oil pan, and let engine oil discharge into the prepared vessel

9.1.3. Cooling Water

Remove the cooling water drain plug from the cylinder block and oil cooler, various pipes, etc. and let the cooling water discharge into the prepared vessel.

9.1.4. Cooling Fan

Remove fan fixing bolts, then take off the cooling fan.

EPM2001I

9.1.5. V-belt

Loosen the V-belt tension adjusting bolts, and remove the V-belt.

9.1.6. Alternator

Remove the supporting guide piece for installing the alternator and the bracket bolts.

Disassemble the alternator.

9.1.7. Vibration Damper

Remove the fixing bolts for crankshaft pulley in reverse order of assembling and disassemble the crankshaft pulley and vibration damper.

9.1.8. Oil Filter Assembly

Disassemble the oil filter cartridge with filter wrench by means of a filter wrench.

Do not use again the cartridge removed after use.

EFM2004I

EA6O6014

EFM2004I

EFM2005I

Remove the oil filter head fixing bolts and disassemble the filter head

9.1.9. Cooling Water Pump

Loosen the various hose clamps for the connections.

Remove the cooling water discharging pipe and disassemble the thermostat.

Remove the cooling water pump fixing bolts and disassemble the cooling water pump.

9.1.10. Starting Motor

Remove the starting motor fixing nuts and disassemble the starting motor.

9.1.11. Fuel filter

Disassemble the fuel hose for the fuel supply and suction.

Remove the fuel filter fixing bolts and disassemble the filter.

EFM2006I

EFM2007I

EC8OM010

1

5 2 3

4

6

EA2O4009

EA2O4009

9.1.12. Injection pipe

Disassemble various fuel pipe and hose.

Disassemble the injection pipe from the nozzle holder and fuel injection pump.

9.1.13. Oil Cooler Assembly

By removing the plug screw of cooling water discharge port, the cooling water is discharged.

Remove the oil cooler cover fixing bolts and disassemble the oil cooler.

By removing the cooler housing fixing bolts and disassemble the oil cooler housing from the cylinder block.

9.1.14. Turbocharger

Loosen the hose clamp for connecting the intake stake and tear down the air intake stake.

Loosen the clamp for connecting the air intake manifold.

Remove the hollow screws of pipes for turbocharger lubrication and its discharge, and tear the pipes down.

Remove the turbocharger fixing nuts and separate the turbocharger from

EB2M3003

EFM2012I

EFM2011I

9.1.15. Intercooler

Tear down the various hoses and air pipes from the inter cooler.

Remove the intercooler fixing bolts and tear it down.

9.1.16. Exhaust Manifold

Remove the exhaust manifold fixing bolts and tear the manifold from the cylinder head.

9.1.17. Intake Manifold

Remove the manifold fixing bolts and tear the manifold down from the cylinder head.

9.1.18. Flywheel Housing Cover

Separate the side cover.

Disassemble the flywheel housing cover.

EA6M2001

EPM2012I

EPM2013I

EFM2018I

9.1.19. Fuel Injection Pump

Remove the oil hoses for lubrication and the fuel hoses.

Remove the fixing bolts of fuel injection pump and take out the fuel Injection pump.

9.1.20. Cylinder head cover

Remove the fixing bolts and tear the cylinder head cover down

9.1.21. Nozzle holder

By means of a special tool, loosen the nozzle holder assembly and take it out.

9.1.22. Rocker arm

Remove the rocker arm bracket fixing bolts and take the rocker arm assembly out.

Pull out the push rod.

EFM2020I

EFM2021I

9.1.23. Cylinder Head

Loosen the cylinder head fixing bolts in the reverse order of assembling, and remove them all and then take the cylinder head out.

Remove the cylinder head gasket and scrap it.

Eliminate the residue from the cylinder head face and cylinder block face.

NOTE : Be careful not to damage the cylinder head face where its gasketcontacts.

9.1.24. Oil Pan

Remove the oil pan fixing bolts and separate the pan.

Remove the oil pan gasket and scrap it.

9.1.25. Oil Pump

Remove the oil suction pipe fixing bolts and tear them down.

Remove the oil relief valve fixing bolts and take them out.

Remove the oil pump fixing bolts and separate it.

9.1.26. Piston

Remove the connecting rod cap bolts in the reverse order of assembling and follow the similar method as in the cylinder head bolt removal.

Tapping the upper and lower connecting rod caps lightly with an urethane hammer, separate them and take the bearings out.

EFM2023I

EFM2024I

EFM2025I

EFM2026I

By pushing the piston assembly with a wooden bar toward the cylinder head’s direction remove the piston.

NOTE : Be careful for the removed pistons not to collide each other or with the other parts.

At the storage of pistons, maintain them in the order of cylinders.(In order for connecting rod caps not to mix one another, temporarily assemble them to the corresponding connecting rods.)

9.1.27. Front Oil Seal Holder

Remove the oil seal holder fixing bolts and tear down.

Remove the oil seal and gasket from the oil seal holder and scrap them.

9.1.28. Flywheel

Remove the flywheel fixing bolts in the order of disassembling and remove the flywheel.

Remove the flywheel ring gear.

- Heat the ring gear evenly with a gas burner (up to 200 ˚C) to invite volumetric expansion.

- Tapping around the edges of the ring gear with a hammer and brass bar to remove it.

Caution : Do not damage the flywheel.

9.1.29. Flywheel Housing

Remove the flywheel housing fixing bolts and take them out.

Remove the oil seal from the flywheel housing.

EFM2027I

EFM2028I

EA0M4028

9.1.30. Crankshaft

Remove the bolts from bearing caps.

Remove the main bearing cap fixing bolts in the order of assembling.

(Remove them in /the same way of the cylinder head bolts.)

Maintain the removed bearing caps in the order of cylinders.

Temporarily install the bolts at the both side of crankshaft, and lift the shaft with a rope.

NOTE : Do not mingle with the metal bearings and bearing caps randomly. To prevent mixing, temporarily assemble the metal bearings to the corresponding bearing caps in turn.

9.1.31. Camshaft and Tappet

Pull out the tappets from the cylinder block.

Remove the camshaft being careful not to damage the camshaft and its bearings.

9.1.32. Oil Spray Nozzle

Remove the oil injection nozzle fixing bolts and tear down the oil injection nozzles.

9.1.33. Cylinder Liner

By means of a special tool (Extractor), pull out the liner from the cylinder block.

EFM2029I

EFM2030I

9.2. Inspection

In document Daewoo p180leom (Page 71-80)

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