DOHC car engines Hyundai Accent 2

Front view of DOHC engine
Front view of the engine

Technical data of DOHC engines
Name Nominal values Maximum permissible values General information Type In-line, with two camshafts Number of cylinders 4 Cylinder diameter 75.5 mm Piston stroke...

Checking the compression in the cylinder
If the engine runs poorly or intermittently, check the ignition system and fuel system. If the reasons for poor engine performance cannot be found, perform a compression...

Timing belt — removal and installation
1 – front cover; 2 – bolt, 20–27 Nm; 3 – spacer sleeve of the toothed belt tensioning mechanism; 4 – tension mechanism spring; 5 – timing belt tension roller; 6 –...

Poly V-belt — removal and installation
Removal 1. Loosen the water pump pulley mounting bolts. 2. Loosen the generator support nuts. 3. Loosen the generator mounting bolt and remove the poly V-belt. 4. Remove...

Engine Mounts — Removal
Removal 1. Attach the lifting gear clamps to the engine lugs and lift so that the engine weight is supported by the lifting gear. 2. Remove the engine support mounting...

Front cover — removal and installation
1 – mesh oil filter; 2 – bolt, 15-22 Nm; 3 – gasket; 4 – cork; 5 – spring; 6 – bolt, 20-27 Nm; 7 – front sealing ring; 8 – front cover; 9 – internal gear of the oil...

Air Filter (ACL)
1 – resonance chamber; 2 – air intake pipe; 3 – lid; 4 – air filter element; 5 – air filter housing; 6 – bolt, 8–10 Nm; 7 – bolt, 4–6 Nm; 8 – resonance chamber. Removal...

Cylinder head — removal and installation
1 – bolt, 35 Nm + tighten by 90–92° + loosen all bolts + 35 Nm + tighten by 90–92°; 2 – cylinder head; 3 – cylinder head gasket. Removal 1. Drain the coolant and...

Camshafts — Removal and Installation
1 – camshaft pulley; 2 – bolt, 80–100 Nm; 3 – camshaft sealing ring; 4 – front bearing cover; 5 – intake camshaft; 6 – bolt, 8–10 Nm; 7 – central cover; 8 – cylinder...

Replacing the valve seat
Execution order 1. Any valve seat insert that has worn to the limit must be replaced at room temperature by cutting off the wall as shown in Figure A. 2. After removing...

Replacing the valve guide bushing
The valve guide is installed using a press. Using valve guide installer 09221-25000 or a suitable tool, replace the valve guide as follows. Execution order 1. Using a...

Valves — removal and installation
1 – exhaust valve; 2 – exhaust valve seat; 3 – valve guide bushing; 4 – valve spring plate; 5 – oil deflector cap; 6 – valve spring; 7 – valve spring holder; 8 –...

Connecting rods — removal and installation
Piston and connecting rod 1 – bolt, 32–35 Nm; 2 – connecting rod cover; 3 – lower connecting rod bearing shell; 4 – upper connecting rod bearing shell; 5 – connecting...

Crankshaft — removal and installation
1 – lower shell of the crankshaft main bearing; 2 – upper shell of the crankshaft main bearing; 3 – upper bearing of the crankshaft; 4 – crankshaft angle sensor; 5 –...

Flywheel — removal and installation
1 – toothed crown; 2 – flywheel; 3 – bolt, 130–140 Nm; 4 – drive plate; 5 – adjustment plate; 6 – bolt, 130–140 Nm; 7 – adjustment plate. Removal 1. Remove the gearbox...

Piston — removal and installation
Removal 1. To disassemble and reassemble the piston and connecting rod, use special tools 09234–33001. 2. Install the universal supports into the clamp between the...

Exhaust manifold
1 – bolt, 15–20 Nm; 2 – heat shield; 3 – studs, 15–20 Nm; 4 – exhaust manifold gasket; 5 – exhaust manifold. Check the exhaust manifold for damage or cracking. Check the...

Intake manifold and air chamber
1 – intake manifold; 2 – bolt, 15–20 Nm; 3 – throttle assembly; 4 – bolt, 15–20 Nm; 5 – gasket; 6 – fuel line; 7 – air compensation chamber. Removal 1. Disconnect the...

Cylinder block
SOHC Engine Cylinder Block Front Bracket Removal 1. Remove the cylinder head, timing belt, front cover, flywheel, pistons and crankshaft. 2. With a special device...

Removal and installation of engine and gearbox
Removal 1. Remove the battery. 2. Remove the air filter. 3. Disconnect the electrical connectors from the reverse light switch and engine wiring harnesses. 4. On a...

Exhaust system
1 – bolt, 30–40 Nm; 2 – gasket; 3 – catalytic converter; 4 – central muffler; 5 – main muffler; 6 – suspension; 7 – nut, 30–40 Nm; 8 – bolt, 40–60 Nm; 9 – exhaust inlet...

Troubleshooting
Sign Probable cause Method of elimination Low compression in engine cylinders The cylinder head gasket is blown Replace the gasket Piston rings are worn or damaged...

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